/* roulang page: index */
:root {
    --bg: #0A1420;
    --bg2: #0F1D2E;
    --blue: #226BFF;
    --blue2: #4A8BFF;
    --steel: #6B8BA6;
    --steel2: #8DA6C0;
    --orange: #FF8A3C;
    --green: #2BD3A3;
    --text: #EAF2FC;
    --text2: #8BA2BC;
    --text3: #5B738C;
    --glass: rgba(16, 31, 50, .64);
    --glass2: rgba(20, 38, 60, .78);
    --line: rgba(255, 255, 255, .08);
    --line2: rgba(255, 255, 255, .16);
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 10px;
    --font-main: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background-color: var(--bg);
    background-image: radial-gradient(ellipse at 20% -10%, rgba(34, 107, 255, .12), transparent 40%),
      radial-gradient(ellipse at 90% 15%, rgba(34, 107, 255, .06), transparent 35%);
    color: var(--text);
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
  }

  ul,
  ol,
  p,
  figure,
  blockquote {
    margin: 0;
    padding: 0;
  }

  img {
    display: block;
    max-width: 100%;
    border: 0;
  }

  a {
    text-decoration: none;
    color: inherit;
    transition: color .18s ease, background-color .18s ease, border-color .18s ease;
  }

  button,
  input,
  textarea {
    font-family: inherit;
    border: 0;
  }

  button {
    cursor: pointer;
    background: none;
  }

  .container {
    width: min(1240px, 92%);
    margin-left: auto;
    margin-right: auto;
  }

  .text-main {
    color: var(--text);
  }
  .text-muted {
    color: var(--text2);
  }
  .text-dim {
    color: var(--text3);
  }
  .text-green {
    color: var(--green);
  }
  .text-orange {
    color: var(--orange);
  }
  .text-blue {
    color: var(--blue2);
  }

  .site-topbar {
    position: relative;
    background: #08111B;
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    font-size: 13px;
    color: var(--steel2);
    z-index: 80;
  }

  .site-topbar .topbar-flex {
    min-height: 38px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
  }

  .topbar-domain {
    color: var(--text2);
    letter-spacing: .08em;
    font-size: 12px;
  }

  .topbar-link {
    color: var(--steel2);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color .2s ease;
  }

  .topbar-link:hover {
    color: #fff;
  }

  .site-header {
    position: sticky;
    top: 0;
    width: 100%;
    background: rgba(10, 20, 32, .72);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, .07);
    z-index: 60;
  }

  .header-flex {
    display: flex;
    align-items: center;
    gap: 30px;
    min-height: 72px;
  }

  .brand-cn {
    display: block;
    font-size: 22px;
    font-weight: 800;
    letter-spacing: .02em;
    color: #fff;
    line-height: 1.2;
  }

  .brand-sub {
    display: block;
    font-size: 12px;
    letter-spacing: .1em;
    color: var(--text3);
    margin-top: 3px;
  }

  .brand-sub::before {
    content: "";
    display: inline-block;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 8px rgba(43, 211, 163, .8);
    margin-right: 6px;
    vertical-align: 2px;
  }

  .nav-desktop {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .nav-menu > li {
    position: relative;
  }

  .nav-menu > li > a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    height: 42px;
    padding: 0 14px;
    border-radius: 999px;
    font-size: 15px;
    color: var(--text2);
    font-weight: 500;
    transition: all .2s ease;
  }

  .nav-menu > li > a:hover,
  .nav-menu > li > a.active {
    background: rgba(34, 107, 255, .14);
    color: #fff;
  }

  .nav-menu > li.dropdown:hover > .dropdown-panel,
  .nav-menu > li.dropdown:focus-within > .dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .dropdown-panel {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 280px;
    background: rgba(10, 22, 36, .96);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: all .16s ease;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, .4);
  }

  .dropdown-panel a {
    display: block;
    border-radius: 10px;
    padding: 12px 14px;
    color: var(--text2);
    font-size: 14px;
    border: 1px solid transparent;
  }

  .dropdown-panel a:hover {
    background: rgba(34, 107, 255, .16);
    color: #fff;
    border-color: rgba(34, 107, 255, .22);
  }

  .dropdown-panel a .info-arrow {
    float: right;
    color: var(--text3);
    transition: all .2s ease;
  }

  .dropdown-panel a:hover .info-arrow {
    color: var(--orange);
    transform: translateX(4px);
  }

  .header-cta {
    margin-left: 8px;
  }

  .nav-mobile-trigger {
    display: none;
    margin-left: auto;
  }

  .nav-mobile-trigger details {
    position: relative;
  }

  .nav-mobile-trigger summary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: var(--text);
    border: 1px solid var(--line);
    border-radius: 12px;
    list-style: none;
    cursor: pointer;
  }

  .nav-mobile-trigger summary::-webkit-details-marker {
    display: none;
  }

  .nav-mobile-trigger summary .bar {
    display: block;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 4px;
    position: relative;
  }

  .nav-mobile-trigger summary .bar::before,
  .nav-mobile-trigger summary .bar::after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: currentColor;
    border-radius: 4px;
  }

  .nav-mobile-trigger summary .bar::before {
    top: -6px;
  }

  .nav-mobile-trigger summary .bar::after {
    top: 6px;
  }

  .mobile-panel {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    width: min(360px, 90vw);
    background: rgba(8, 17, 28, .98);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 14px;
    box-shadow: 0 24px 50px rgba(0, 0, 0, .45);
  }

  .mobile-panel a.mobile-link {
    display: block;
    padding: 12px 14px;
    border-radius: 10px;
    color: var(--text2);
    font-size: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, .04);
  }

  .mobile-panel a.mobile-link:hover {
    background: rgba(34, 107, 255, .12);
    color: #fff;
  }

  .mobile-panel .panel-subheading {
    font-size: 13px;
    color: var(--text3);
    padding: 4px 6px 0;
    display: block;
    margin-top: 4px;
  }

  .button-orange,
  .button-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 10px;
    font-weight: 600;
    transition: all .2s ease;
    font-size: 15px;
  }

  .button-orange {
    min-height: 44px;
    padding: 0 22px;
    background: var(--orange);
    color: #131313;
    box-shadow: 0 0 22px rgba(255, 138, 60, .16), inset 0 1px 0 rgba(255, 255, 255, .28);
  }

  .button-orange:hover {
    background: #ff9a55;
    transform: translateY(-1px);
    box-shadow: 0 4px 28px rgba(255, 138, 60, .35), inset 0 1px 0 rgba(255, 255, 255, .3);
    color: #111;
  }

  .button-orange:active {
    transform: scale(.98);
  }

  .button-ghost {
    min-height: 44px;
    padding: 0 20px;
    border: 1px solid var(--line2);
    color: var(--text);
    background: rgba(255, 255, 255, .04);
  }

  .button-ghost:hover {
    background: rgba(255, 255, 255, .1);
    color: #fff;
    border-color: rgba(255, 255, 255, .3);
  }

  .button-ghost:active {
    transform: scale(.98);
  }

  .button-sm {
    min-height: 36px;
    padding: 0 16px;
    font-size: 13px;
    border-radius: 10px;
  }

  /* ===== Hero ===== */
  .hero-bg {
    position: relative;
    overflow: hidden;
    background-color: var(--bg);
    background-image: linear-gradient(115deg, rgba(10, 20, 32, .96) 22%, rgba(10, 20, 32, .86) 48%, rgba(10, 20, 32, .55) 75%, rgba(10, 20, 32, .42)),
      url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center center;
  }

  .hero-grid-lines {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .8), transparent 82%);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .8), transparent 82%);
  }

  .hero-wrap {
    position: relative;
    padding: 90px 0 118px;
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    align-items: center;
    gap: 40px;
  }

  .hero-title {
    font-size: clamp(34px, 4.4vw, 46px);
    font-weight: 800;
    line-height: 1.22;
    letter-spacing: -.01em;
    margin: 18px 0 20px;
    color: #fff;
  }

  .hero-subtitle {
    max-width: 620px;
    color: var(--text2);
    font-size: 17px;
    line-height: 1.9;
    margin-bottom: 24px;
  }

  .hero-kv-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 0 0 28px;
  }

  .hero-kv-tags span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .06);
    border: 1px solid rgba(255, 255, 255, .08);
    font-size: 13px;
    color: var(--steel2);
  }

  .hero-kv-tags i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--green);
    display: inline-block;
    box-shadow: 0 0 8px rgba(43, 211, 163, .6);
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }

  .hero-status-card {
    position: relative;
    background: var(--glass);
    border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 18px;
    padding: 24px;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: 0 20px 58px rgba(0, 0, 0, .22), inset 0 1px 0 rgba(255, 255, 255, .1);
    max-width: 440px;
    margin-left: auto;
    width: 100%;
  }

  .hero-status-head {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--steel2);
    font-size: 14px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line);
  }

  .status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 10px rgba(43, 211, 163, .75);
    animation: pulse-dot 2.2s infinite;
  }

  @keyframes pulse-dot {
    0%, 100% { box-shadow: 0 0 4px rgba(43, 211, 163, .6); }
    50% { box-shadow: 0 0 14px rgba(43, 211, 163, 1); }
  }

  .hero-serve {
    color: #fff;
    font-size: 20px;
    font-weight: 700;
    line-height: 1.4;
  }

  .hero-metric-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin: 18px 0;
  }

  .hero-metric {
    background: rgba(255, 255, 255, .045);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 12px 14px;
  }

  .metric-label {
    color: var(--text3);
    font-size: 12px;
  }

  .metric-value {
    color: var(--text);
    font-weight: 700;
    font-size: 14px;
    line-height: 1.7;
  }

  /* ===== Quick Entry ===== */
  .quick-entry-section {
    position: relative;
    z-index: 3;
    margin: -52px 0 24px;
  }

  .quick-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-radius: 18px;
    background: rgba(13, 27, 44, .82);
    border: 1px solid rgba(255, 255, 255, .1);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: 0 22px 48px rgba(0, 0, 0, .28), inset 0 1px 0 rgba(255, 255, 255, .1);
    overflow: hidden;
  }

  .quick-item {
    display: flex;
    gap: 14px;
    align-items: center;
    padding: 22px 24px;
    border-right: 1px solid rgba(255, 255, 255, .06);
    transition: background .2s ease;
  }

  .quick-item:last-child {
    border-right: 0;
  }

  .quick-item:hover {
    background: rgba(34, 107, 255, .12);
  }

  .quick-icon {
    width: 42px;
    height: 42px;
    flex-shrink: 0;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(34, 107, 255, .14);
    border: 1px solid rgba(34, 107, 255, .18);
    color: var(--blue2);
  }

  .quick-icon.is-orange {
    background: rgba(255, 138, 60, .12);
    border-color: rgba(255, 138, 60, .2);
    color: var(--orange);
  }

  .quick-icon.is-green {
    background: rgba(43, 211, 163, .12);
    border-color: rgba(43, 211, 163, .18);
    color: var(--green);
  }

  .quick-text strong {
    display: block;
    font-size: 15px;
    color: #fff;
    font-weight: 700;
    line-height: 1.4;
  }

  .quick-text span {
    display: block;
    font-size: 13px;
    color: var(--text3);
    line-height: 1.5;
  }

  .section {
    padding: 72px 0;
  }

  .center-heading {
    text-align: center;
    margin-bottom: 48px;
  }

  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--orange);
    font-size: 13px;
    letter-spacing: .14em;
    margin-bottom: 12px;
    text-transform: uppercase;
  }

  .section-eyebrow::before {
    content: "";
    width: 20px;
    height: 1px;
    background: var(--orange);
  }

  .section-title {
    font-size: clamp(26px, 3vw, 34px);
    line-height: 1.28;
    color: #fff;
    margin: 0 auto 12px;
    font-weight: 800;
  }

  .center-heading .section-title {
    max-width: 720px;
  }

  .section-desc {
    max-width: 680px;
    margin: 0 auto;
    font-size: 16px;
    color: var(--text2);
    line-height: 1.85;
  }

  .steps-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    position: relative;
  }

  .steps-row::before {
    content: "";
    position: absolute;
    top: 55px;
    left: 12%;
    right: 12%;
    height: 1px;
    background-image: linear-gradient(90deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, .24), rgba(255, 255, 255, .12));
  }

  .step-card {
    background: rgba(15, 29, 46, .7);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 18px;
    padding: 30px 26px 26px;
    transition: all .24s ease;
  }

  .step-card:hover {
    transform: translateY(-3px);
    border-color: rgba(255, 255, 255, .18);
    background: rgba(18, 34, 54, .8);
  }

  .step-index {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
  }

  .step-num {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background: rgba(34, 107, 255, .16);
    border: 1px solid rgba(34, 107, 255, .22);
    color: var(--blue2);
    font-size: 18px;
    font-weight: 800;
    border-radius: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .step-name {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
  }

  .step-text {
    color: var(--text2);
    font-size: 15px;
    line-height: 1.85;
  }

  .watermark-tag {
    margin-top: 18px;
    display: inline-block;
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--line);
    color: var(--text3);
    border-radius: 999px;
    font-size: 12px;
    padding: 3px 10px;
  }

  .section-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .1), transparent);
    max-width: 1180px;
    margin: 0 auto;
    width: 92%;
  }

  .award-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 24px;
    align-items: stretch;
  }

  .reward-main-card {
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .14);
    background: var(--glass);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1), 0 20px 40px rgba(0, 0, 0, .2);
    position: relative;
    min-height: 340px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
  }

  .reward-main-card .reward-inner {
    position: relative;
    padding: 30px;
    background: linear-gradient(180deg, rgba(10, 20, 32, .18), rgba(10, 20, 32, .92));
  }

  .reward-image-gradient {
    position: absolute;
    inset: 0;
    z-index: 0;
    object-fit: cover;
    width: 100%;
    height: 100%;
    opacity: .72;
  }

  .reward-main-card .reward-pixel-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--orange), transparent);
  }

  .badge-orange {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(255, 138, 60, .13);
    border: 1px solid rgba(255, 138, 60, .24);
    font-size: 13px;
    color: var(--orange);
  }

  .badge-blue {
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(34, 107, 255, .12);
    border: 1px solid rgba(34, 107, 255, .2);
    font-size: 13px;
    color: var(--blue2);
  }

  .reward-main-card h3 {
    font-size: 24px;
    line-height: 1.4;
    margin: 16px 0 8px;
    color: #fff;
  }

  .reward-main-card p {
    max-width: 460px;
    color: rgba(234, 242, 252, .76);
    font-size: 14px;
    line-height: 1.85;
  }

  .reward-feature-list {
    margin-top: 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px 30px;
  }

  .reward-feature-list > div span {
    display: block;
    color: var(--text3);
    font-size: 12px;
  }

  .reward-feature-list > div strong {
    color: var(--steel2);
    font-size: 14px;
  }

  .reward-side-stack {
    display: grid;
    grid-template-rows: 1fr 1fr;
    gap: 22px;
  }

  .reward-mini-card {
    background: rgba(15, 29, 46, .76);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 24px;
    display: flex;
    align-items: flex-start;
    gap: 17px;
    transition: all .22s ease;
  }

  .reward-mini-card:hover {
    border-color: rgba(255, 255, 255, .18);
    background: rgba(19, 36, 56, .8);
  }

  .mini-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(43, 211, 163, .1);
    border: 1px solid rgba(43, 211, 163, .14);
    color: var(--green);
    flex-shrink: 0;
  }

  .mini-icon i {
    font-style: normal;
    font-weight: 700;
    font-size: 20px;
  }

  .mini-card-body strong {
    display: block;
    color: #fff;
    line-height: 1.5;
    margin-bottom: 6px;
  }

  .mini-card-body span {
    display: block;
    color: var(--text3);
    font-size: 13px;
    line-height: 1.7;
  }

  .task-panel {
    background: rgba(14, 28, 45, .74);
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 18px;
    padding: 34px;
    position: relative;
    overflow: hidden;
  }

  .task-panel:before {
    content: "";
    position: absolute;
    width: 260px;
    height: 260px;
    right: -80px;
    top: -80px;
    border-radius: 50%;
    background: rgba(34, 107, 255, .08);
    filter: blur(60px);
  }

  .task-panel-inner {
    position: relative;
  }

  .progress-label-row {
    display: flex;
    gap: 16px;
    align-items: center;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--line);
    padding-bottom: 18px;
    margin-bottom: 26px;
  }

  .progress-label-row .progress-percent {
    color: var(--blue2);
    font-weight: 800;
  }

  .task-block {
    margin: 14px 0;
  }

  .task-step-card {
    background: rgba(255, 255, 255, .03);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 16px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
    margin-bottom: 12px;
    transition: all .18s ease;
  }

  .task-step-card:hover {
    border-color: rgba(255, 255, 255, .14);
  }

  .task-step-label {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .task-state-icon {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
  }

  .state-done .task-state-icon {
    background: rgba(43, 211, 163, .14);
    color: var(--green);
  }

  .state-progress .task-state-icon {
    background: rgba(255, 138, 60, .12);
    color: var(--orange);
  }

  .state-lock .task-state-icon {
    background: rgba(139, 162, 188, .14);
    color: var(--text3);
  }

  .task-state-badge {
    font-size: 13px;
    padding: 4px 10px;
    border-radius: 999px;
    white-space: nowrap;
  }

  .task-active-progress {
    height: 6px;
    background: rgba(255, 255, 255, .04);
    border-radius: 999px;
    margin-top: 18px;
    overflow: hidden;
  }

  .task-active-progress .fill {
    width: 60%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 138, 60, .7), var(--orange));
    border-radius: 999px;
    box-shadow: 0 0 12px rgba(255, 138, 60, .35);
  }

  .task-panel-cover {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    min-height: 220px;
    background: var(--glass);
  }

  .task-panel-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
  }

  .task-panel-cover:after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent, rgba(10, 20, 32, .36));
  }

  .task-cover-tip {
    position: absolute;
    z-index: 2;
    left: 18px;
    bottom: 16px;
    right: 18px;
    background: rgba(8, 17, 28, .62);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, .1);
    color: var(--text2);
    font-size: 13px;
    padding: 10px 12px;
    border-radius: 12px;
  }

  /* ===== Info / news ===== */
  .latest-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 28px;
    align-items: start;
  }

  .post-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .post-card {
    position: relative;
    display: block;
    background: rgba(16, 31, 50, .58);
    border: 1px solid rgba(255, 255, 255, .06);
    border-radius: 14px;
    padding: 22px 22px 20px;
    transition: all .22s ease;
    overflow: hidden;
  }

  .post-card:before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, transparent, var(--blue), transparent);
    opacity: 0;
    transition: all .2s ease;
  }

  .post-card:hover {
    background: rgba(18, 34, 54, .9);
    border-color: rgba(255, 255, 255, .17);
    transform: translateY(-2px);
  }

  .post-card:hover:before {
    opacity: 1;
  }

  .post-meta-line {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 8px;
  }

  .post-date {
    color: var(--text3);
    font-size: 13px;
  }

  .post-title {
    color: #fff;
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    margin: 4px 0 6px;
  }

  .post-summary {
    color: var(--text2);
    font-size: 14px;
    line-height: 1.75;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .post-more {
    display: inline-block;
    color: var(--steel2);
    font-size: 13px;
    margin-top: 12px;
    transition: all .2s ease;
  }

  .post-card:hover .post-more {
    color: var(--orange);
  }

  .post-card:hover .post-more {
    transform: translateX(3px);
  }

  .side-panel {
    background: rgba(16, 31, 50, .6);
    border: 1px solid rgba(255, 255, 255, .07);
    border-radius: 18px;
    padding: 24px;
  }

  .side-panel h3 {
    color: #fff;
    font-size: 17px;
    margin-top: 0;
  }

  .side-link-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 12px;
  }

  .side-link-list a {
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 12px 14px;
    color: var(--text2);
    transition: all .18s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    line-height: 1.5;
  }

  .side-link-list a:hover {
    background: rgba(34, 107, 255, .14);
    color: #fff;
    border-color: rgba(34, 107, 255, .3);
  }

  .empty-latest {
    padding: 50px 20px;
    text-align: center;
    background: rgba(16, 31, 50, .42);
    border: 1px dashed rgba(255, 255, 255, .1);
    border-radius: 18px;
    color: var(--text3);
    min-height: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }

  .empty-latest .empty-mark {
    font-size: 32px;
    color: var(--steel);
    margin-bottom: 10px;
  }

  /* ===== FAQ ===== */
  .faq-list {
    max-width: 860px;
    margin: 0 auto;
  }

  details.faq-item {
    background: rgba(16, 31, 50, .55);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 14px;
    padding: 4px 22px;
    margin-bottom: 12px;
    transition: all .18s ease;
  }

  details.faq-item[open] {
    border-color: rgba(34, 107, 255, .22);
    background: rgba(18, 35, 56, .72);
  }

  details.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    list-style: none;
    padding: 18px 0;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
  }

  details.faq-item summary::-webkit-details-marker {
    display: none;
  }

  .faq-arrow {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--steel);
    transition: transform .2s ease;
  }

  details[open] .faq-arrow {
    transform: rotate(180deg);
    color: var(--orange);
  }

  .faq-answer {
    color: var(--text2);
    font-size: 15px;
    line-height: 1.9;
    padding: 0 0 18px;
  }

  /* ===== CTA ===== */
  .cta-dynamic-area {
    background: rgba(12, 23, 38, .84);
    border-top: 1px solid rgba(255, 255, 255, .05);
    border-bottom: 1px solid rgba(255, 255, 255, .05);
  }

  .cta-glass {
    text-align: center;
    background: rgba(16, 31, 50, .62);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, .13);
    border-radius: 24px;
    padding: 64px 24px;
    margin: 96px 0;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1), 0 24px 80px rgba(0, 0, 0, .2);
    position: relative;
  }

  .cta-inner h2 {
    color: #fff;
    font-size: clamp(22px, 3vw, 30px);
  }

  .cta-inner p {
    color: var(--text2);
    max-width: 580px;
    margin: 14px auto 28px;
  }

  /* ===== footer ===== */
  .site-footer {
    background: #071019;
    border-top: 1px solid rgba(255, 255, 255, .04);
  }

  .footer-body {
    padding: 60px 0 34px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 42px;
  }

  .footer-brand-name {
    font-size: 20px;
    font-weight: 800;
    color: #fff;
  }

  .footer-brand-desc {
    font-size: 14px;
    color: var(--text3);
    line-height: 1.85;
    max-width: 340px;
    margin-top: 12px;
  }

  .footer-block-title {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, .07);
  }

  .footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .footer-links li + li {
    margin-top: 10px;
  }

  .footer-links a {
    color: var(--text3);
    font-size: 14px;
    transition: all .17s ease;
  }

  .footer-links a:hover {
    color: #fff;
    padding-left: 4px;
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .05);
    padding: 22px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    color: var(--text3);
    font-size: 13px;
  }

  .footer-copy {
    color: var(--text3);
  }

  .footer-domain-text {
    color: var(--steel);
    letter-spacing: .04em;
  }

  .backtop {
    color: var(--text2);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 8px 15px;
    font-size: 13px;
    transition: all .2s;
  }

  .backtop:hover {
    color: var(--orange);
    border-color: rgba(255, 138, 60, .4);
  }

  .section-alt-bg {
    background: rgba(255, 255, 255, .015);
  }

  .topbar-note .tag-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--orange);
    margin-right: 6px;
    box-shadow: 0 0 6px rgba(255, 138, 60, .7);
  }

  .view-all-link {
    color: var(--steel2);
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: color .18s ease;
  }

  .view-all-link:hover {
    color: var(--orange);
  }

  @media (min-width: 1200px) {
    .section {
      padding: 88px 0;
    }
  }

  @media (max-width: 1080px) {
    .nav-menu {
      gap: 2px;
    }
    .nav-menu > li > a {
      padding: 0 11px;
      font-size: 14px;
    }
    .hero-grid {
      grid-template-columns: 1fr;
    }
    .hero-status-card {
      max-width: 640px;
      margin-left: 0;
    }
    .quick-grid {
      grid-template-columns: repeat(2, 1fr);
    }
    .quick-item:nth-child(2) {
      border-right: 0;
    }
    .quick-item:nth-child(-n+2) {
      border-bottom: 1px solid rgba(255, 255, 255, .06);
    }
    .latest-grid {
      grid-template-columns: 1fr;
    }
    .side-panel {
      max-width: 100%;
    }
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 34px;
    }
  }

  @media (max-width: 860px) {
    .brand-cn {
      font-size: 18px;
    }
    .brand-sub {
      font-size: 11px;
    }
    .header-cta {
      display: none;
    }
    .nav-mobile-trigger {
      display: block;
    }
    .nav-desktop {
      display: none;
    }
    .steps-row {
      grid-template-columns: 1fr;
      gap: 16px;
    }
    .steps-row::before {
      display: none;
    }
    .step-card {
      padding: 24px 20px;
    }
    .award-grid {
      grid-template-columns: 1fr;
    }
    .task-panel {
      padding: 24px;
    }
  }

  @media (max-width: 560px) {
    .site-topbar .topbar-flex {
      min-height: 34px;
      font-size: 12px;
      flex-wrap: wrap;
      gap: 4px;
      justify-content: space-between;
    }
    .topbar-note {
      display: none;
    }
    .topbar-domain {
      font-size: 11px;
    }
    .quick-grid {
      grid-template-columns: 1fr;
    }
    .quick-item {
      border-right: 0;
      border-bottom: 1px solid rgba(255, 255, 255, .06);
    }
    .quick-item:last-child {
      border-bottom: 0;
    }
    .hero-wrap {
      padding: 62px 0 100px;
    }
    .hero-title {
      font-size: 31px;
    }
    .section {
      padding: 56px 0;
    }
    .cta-glass {
      margin: 56px 0;
      padding: 46px 18px;
    }
    .footer-bottom {
      justify-content: center;
      text-align: center;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 30px;
    }
    .hero-actions {
      flex-direction: column;
    }
    .hero-actions a {
      width: 100%;
    }
    .task-step-card {
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
    }
    .task-active-progress {
      margin-top: 12px;
    }
  }

/* roulang page: article */
:root{
  --bg-base:#0A1420;
  --bg-soft:#0F1D2E;
  --bg-deep:#08111C;
  --primary:#226BFF;
  --primary-light:#4A8BFF;
  --steel:#6B8BA6;
  --steel-light:#8DA6C0;
  --orange:#FF8A3C;
  --green:#2BD3A3;
  --text-main:#EAF2FC;
  --text-secondary:#8BA2BC;
  --text-weak:#5B738C;
  --line:rgba(255,255,255,.08);
  --line-hover:rgba(255,255,255,.16);
  --glass:rgba(16,31,50,.64);
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-soft:0 24px 60px rgba(0,0,0,.4);
  --shadow-card:0 14px 40px rgba(0,0,0,.30);
}
*{box-sizing:border-box;font-feature-settings:"palt"}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-main);
  font-family:"PingFang SC","Microsoft YaHei","HarmonyOS Sans SC","Noto Sans SC",system-ui,sans-serif;
  font-size:15px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(ellipse at 18% -10%, rgba(34,107,255,.13), transparent 42%),
    radial-gradient(ellipse at 88% 10%, rgba(255,138,60,.06), transparent 42%),
    linear-gradient(180deg, #0A1420 0%, #081321 100%);
  min-height:100vh;color-scheme:dark;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit}
h1,h2,h3,h4,p{margin-top:0;margin-bottom:0}
ul{list-style:none;padding:0;margin:0}
details>summary{list-style:none}
details>summary::-webkit-details-marker{display:none}
.container{max-width:1240px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
.button-orange{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(135deg,#FF9B4E 0%,#FF7A22 100%);
  color:#1B1108;font-weight:700;font-size:14px;line-height:1;
  padding:13px 24px;border-radius:var(--radius-sm);
  box-shadow:0 0 24px rgba(255,138,60,.18);
  transition:transform .22s ease, box-shadow .22s ease, background .22s ease;
  white-space:nowrap;border:1px solid rgba(255,255,255,.18);
}
.button-orange:hover{transform:translateY(-1px);box-shadow:0 8px 32px rgba(255,138,60,.34);background:linear-gradient(135deg,#FFAA68 0%,#FF8A3C 100%)}
.button-orange:active{transform:scale(.98)}
.button-orange:focus-visible{outline:3px solid rgba(255,138,60,.5);outline-offset:3px}
.button-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:rgba(255,255,255,.03);border:1px solid var(--line);
  color:var(--text-main);font-weight:500;font-size:14px;line-height:1;
  padding:13px 24px;border-radius:var(--radius-sm);
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
  backdrop-filter:blur(8px);
}
.button-secondary:hover{border-color:var(--line-hover);background:rgba(255,255,255,.07);transform:translateY(-1px)}
.button-sm{padding:10px 18px;font-size:13px}
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(10,20,32,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.header-flex{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px}
.brand-link{display:flex;flex-direction:column;line-height:1.2;min-width:0;padding:6px 0}
.brand-cn{font-size:19px;font-weight:800;color:var(--text-main);letter-spacing:.02em}
.brand-sub{font-size:11px;color:var(--steel-light);margin-top:4px;font-weight:400;white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:30px}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-menu > li{position:relative}
.nav-menu > li > a{
  display:flex;align-items:center;gap:6px;
  color:var(--steel-light);font-size:14px;font-weight:500;
  padding:8px 14px;border-radius:8px;transition:color .2s, background .2s;
}
.nav-menu > li > a:hover{color:#fff;background:rgba(255,255,255,.04)}
.nav-menu > li > a.active{color:#fff;background:rgba(34,107,255,.10)}
.nav-menu > li > a.active::after{content:"";width:18px;height:2px;background:var(--orange);border-radius:2px;margin-top:4px;display:block;position:absolute;left:18px;bottom:-2px}
.dropdown-panel{
  position:absolute;top:calc(100% + 10px);left:0;min-width:214px;
  background:rgba(15,29,46,.96);backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.09);border-radius:var(--radius-md);
  padding:10px;display:flex;flex-direction:column;gap:4px;
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .22s ease;
  box-shadow:var(--shadow-card);
}
.dropdown:hover .dropdown-panel,.dropdown:focus-within .dropdown-panel{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-panel a{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 12px;border-radius:10px;background:transparent;color:var(--text-secondary);
  font-size:14px;transition:background .2s,color .2s,transform .2s;
}
.dropdown-panel a:hover{background:rgba(34,107,255,.14);color:#fff;transform:translateX(4px)}
.dropdown-panel .info-arrow{opacity:.5}
.header-cta{margin-left:8px}
.nav-mobile-trigger{display:none}
.summary-span{display:inline-flex;width:38px;height:38px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;cursor:pointer}
.bar{width:18px;height:2px;background:var(--text-main);position:relative}
.bar::before,.bar::after{content:"";position:absolute;left:0;top:-5px;width:18px;height:2px;background:var(--text-main)}
.bar::after{top:5px}
.mobile-panel{position:absolute;top:calc(100% + 10px);right:0;width:240px;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-md);padding:14px;box-shadow:var(--shadow-card)}
.mobile-panel .mobile-link{display:block;padding:10px 12px;border-radius:8px;font-size:14px;color:var(--text-secondary)}
.mobile-panel .mobile-link:hover,.mobile-panel .mobile-link.active{background:rgba(34,107,255,.12);color:#fff}
.panel-subheading{display:block;font-size:12px;color:var(--text-weak);margin:12px 12px 4px}
.site-container{max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}

/* ===== 文章页 ===== */
.page-content{padding:42px 0 76px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-weak);margin-bottom:28px}
.breadcrumb a{color:var(--text-secondary);transition:color .2s}
.breadcrumb a:hover{color:var(--primary-light)}
.breadcrumb-sep{opacity:.6}
.breadcrumb-current{color:var(--text-secondary);max-width:380px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:52px}
.article-main{min-width:0}
.article-head{padding:22px 0 28px;border-bottom:1px solid var(--line);margin-bottom:32px}
.badge-cat{
  display:inline-flex;align-items:center;background:rgba(34,107,255,.14);
  color:#BBD1FF;border:1px solid rgba(34,107,255,.22);
  padding:4px 14px;border-radius:var(--radius-pill);
  font-size:12px;letter-spacing:.03em;
}
.meta-top{display:flex;align-items:center;gap:18px;margin-bottom:18px;flex-wrap:wrap}
.meta-time{font-size:12px;color:var(--text-weak)}
.article-head h1{font-size:34px;line-height:1.3;font-weight:800;color:#fff;letter-spacing:.01em;margin-bottom:18px}
.article-subnote{font-size:14px;color:var(--text-secondary);display:flex;gap:10px;align-items:center}
.article-subnote::before{content:"";width:26px;height:1px;background:var(--orange);display:inline-block}
.article-body{min-height:260px}
.article-content{font-size:16px;line-height:1.9;color:#D7E5F4;word-break:break-word}
.article-content p{margin-bottom:1.6em}
.article-content h2{font-size:26px;font-weight:700;color:#fff;margin:2.2em 0 .8em;padding-bottom:.5em;border-bottom:1px solid var(--line);line-height:1.4}
.article-content h3{font-size:20px;font-weight:700;color:#F4F9FF;margin:1.8em 0 .6em}
.article-content a{color:#7EACFF;border-bottom:1px solid rgba(126,172,255,.3);transition:color .2s,border-color .2s}
.article-content a:hover{color:var(--primary-light);border-color:transparent}
.article-content ul,.article-content ol{margin:0 0 1.6em;padding-left:1.3em}
.article-content ul li{list-style:disc;margin-bottom:.35em}
.article-content ol li{list-style:decimal;margin-bottom:.35em}
.article-content li::marker{color:var(--orange)}
.article-content blockquote{
  border-left:3px solid var(--orange);background:rgba(255,138,60,.05);
  padding:14px 20px;border-radius:0 10px 10px 0;color:var(--steel-light);
  margin:1.8em 0;font-style:normal;line-height:1.8;
}
.article-content blockquote p{margin-bottom:0}
.article-content img{border-radius:12px;margin:1.8em 0;border:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow-card);height:auto}
.article-content table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:14px}
.article-content th{text-align:left;background:rgba(34,107,255,.08);color:#fff;font-weight:600}
.article-content th,.article-content td{padding:10px 14px;border-bottom:1px solid var(--line)}
.article-content tr:hover{background:rgba(255,255,255,.02)}
.article-content code{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);padding:2px 8px;border-radius:5px;font-size:.92em;color:#D6B2FF}
.article-content pre{background:#0A1420;border:1px solid var(--line);border-radius:12px;padding:18px;overflow-x:auto;margin:1.8em 0}
.article-content pre code{background:transparent;border:0;padding:0}

.not-found-state{padding:72px 24px;text-align:center;background:rgba(15,29,46,.40);border:1px dashed rgba(255,255,255,.14);border-radius:var(--radius-lg);margin:16px 0 32px}
.state-icon{display:inline-flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:50%;background:rgba(34,107,255,.10);border:1px solid rgba(34,107,255,.24);color:var(--primary-light);font-size:27px;line-height:1;margin-bottom:20px}
.not-found-state h2{font-size:24px;font-weight:700;color:#fff;margin-bottom:12px}
.not-found-state p{color:var(--text-secondary);max-width:420px;margin:0 auto 24px;font-size:14px}
.article-footer-nav{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:28px;margin-top:28px;flex-wrap:wrap;gap:12px}
.back-link,.more-link{color:var(--text-secondary);font-size:15px;transition:color .2s,transform .2s}
.back-link:hover{color:#fff}
.more-link:hover{color:var(--primary-light);transform:translateX(4px)}

.related-block{margin-top:52px}
.block-subtitle{font-size:21px;font-weight:700;color:#fff;margin-bottom:16px;position:relative;padding-left:16px}
.block-subtitle::before{content:"";position:absolute;left:0;top:.1em;width:4px;height:1.1em;background:var(--orange);border-radius:4px}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.related-item{background:rgba(15,29,46,.5);border:1px solid var(--line);border-radius:var(--radius-md);padding:18px 20px;transition:transform .25s, border-color .25s, background .25s}
.related-item:hover{border-color:var(--line-hover);background:rgba(20,42,66,.55);transform:translateY(-2px)}
.t-title{display:block;font-size:16px;font-weight:600;color:#fff;margin-bottom:6px}
.t-desc{display:block;font-size:13px;line-height:1.7;color:var(--steel-light);margin-bottom:12px}
.t-more{font-size:13px;color:var(--primary-light);display:inline-flex;align-items:center;gap:5px}

/* Sidebar */
.article-sidebar{display:flex;flex-direction:column;gap:24px}
.sidebar-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px;box-shadow:0 10px 30px rgba(0,0,0,.14)}
.sidebar-card img{border-radius:12px;margin-bottom:14px;border:1px solid rgba(255,255,255,.06)}
.guide-tag{display:inline-block;font-size:12px;background:rgba(255,138,60,.12);color:#FFC699;border:1px solid rgba(255,138,60,.2);padding:3px 12px;border-radius:var(--radius-pill);margin-bottom:10px}
.guide-meta h3{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:8px}
.guide-meta p{font-size:13px;line-height:1.8;color:var(--steel-light)}
.sidebar-title{font-size:16px;font-weight:700;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line);color:#fff}
.sidebar-list{display:flex;flex-direction:column;gap:2px}
.sidebar-list a{display:flex;align-items:center;justify-content:space-between;padding:10px 4px;color:var(--text-secondary);border-radius:8px;transition:background .2s,color .2s}
.sidebar-list a:hover{background:rgba(34,107,255,.1);color:#fff}
.sidebar-arrow{opacity:0;transform:translateX(-6px);transition:opacity .25s,transform .25s;color:var(--orange)}
.sidebar-list a:hover .sidebar-arrow{opacity:1;transform:translateX(0)}
.sidebar-info p{font-size:13px;line-height:1.85;color:var(--steel-light);padding-top:4px}
.sidebar-info{border-color:rgba(34,107,255,.18)}

/* ===== Footer ===== */
.site-footer{background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.05);padding-top:68px}
.footer-body{max-width:1240px;margin:0 auto;padding:0 20px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:56px}
.footer-brand-name{font-size:20px;font-weight:800;color:#fff;margin-bottom:12px;letter-spacing:.02em}
.footer-brand-desc{color:var(--text-weak);font-size:14px;line-height:1.85;max-width:300px}
.footer-block-title{font-size:15px;font-weight:600;color:#CFE0F0;margin-bottom:18px;position:relative;padding-bottom:8px}
.footer-block-title::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--orange);border-radius:2px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:var(--text-weak);font-size:14px;line-height:1.7;transition:color .2s;display:inline-flex;gap:6px;align-items:center}
.footer-links a:hover{color:var(--text-main);padding-left:2px}
.footer-bottom{max-width:1240px;margin:0 auto;padding:20px;border-top:1px solid rgba(255,255,255,.04);display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.footer-copy{font-size:13px;color:var(--text-weak)}
.footer-domain-text{color:var(--steel-light)}
.backtop{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--radius-pill);color:var(--text-secondary);font-size:12px;padding:8px 16px;transition:all .2s;cursor:pointer}
.backtop:hover{border-color:var(--line-hover);color:#fff;background:rgba(255,255,255,.08)}

@media (max-width:1024px){
  .nav-desktop{display:none}
  .nav-mobile-trigger{display:block;position:relative}
  .article-grid{grid-template-columns:1fr;gap:38px}
  .article-sidebar{flex-direction:row;flex-wrap:wrap}
  .sidebar-card{flex:1 1 240px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .header-flex{height:66px}
  .brand-cn{font-size:17px}
  .brand-sub{font-size:10px}
  .page-content{padding:26px 0 56px}
  .article-head h1{font-size:28px}
  .breadcrumb{font-size:12px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .container,.footer-body,.footer-bottom{padding-left:16px;padding-right:16px}
}
@media (max-width:480px){
  .brand-sub{display:none}
  .header-flex{gap:10px}
  .mobile-panel{width:calc(100vw - 32px)}
  .article-content{font-size:15px;line-height:1.85}
  .article-head h1{font-size:25px;line-height:1.35}
  .article-sidebar{flex-direction:column}
  .sidebar-card{width:100%}
  .related-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root{
  --bg0:#0A1420;
  --bg1:#0F1D2E;
  --bg2:#132538;
  --primary:#226BFF;
  --primary-light:#4A8BFF;
  --steel:#6B8BA6;
  --steel-light:#8DA6C0;
  --orange:#FF8A3C;
  --green:#2BD3A3;
  --text1:#EAF2FC;
  --text2:#8BA2BC;
  --text3:#5B738C;
  --glass-bg:rgba(16,31,50,.64);
  --glass-border:rgba(255,255,255,.08);
  --glass-border-hover:rgba(255,255,255,.16);
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-card:0 8px 32px rgba(0,0,0,.18);
  --shadow-hover:0 14px 40px rgba(0,0,0,.32);
}

*,
*::before,
*::after{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  background-color:var(--bg0);
  background-image:
    radial-gradient(circle at 12% 10%, rgba(34,107,255,.08), transparent 32%),
    radial-gradient(circle at 80% 22%, rgba(255,138,60,.06), transparent 28%);
  color:var(--text1);
  font-family:"PingFang SC","Microsoft YaHei","HarmonyOS Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:15px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}

img{
  max-width:100%;
  display:block;
}

a{
  color:inherit;
  text-decoration:none;
}

button{
  font:inherit;
  cursor:pointer;
  border:none;
  background:none;
}

h1,h2,h3,h4{
  margin:0;
  line-height:1.25;
  font-weight:700;
}

p{
  margin:0;
}

.container{
  width:calc(100% - 48px);
  max-width:1240px;
  margin-inline:auto;
}

@media(max-width:640px){
  .container{
    width:calc(100% - 32px);
  }
}

a:focus-visible,
button:focus-visible,
summary:focus-visible{
  outline:2px solid var(--primary-light);
  outline-offset:3px;
  border-radius:4px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(8,17,28,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.07);
}

.header-flex{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:24px;
}

.brand-link{
  display:flex;
  flex-direction:column;
  gap:3px;
  justify-content:center;
  padding:10px 0;
}

.brand-cn{
  font-size:19px;
  font-weight:800;
  letter-spacing:.02em;
  color:#F4F9FF;
  white-space:nowrap;
}

.brand-cn::before{
  content:"";
  display:inline-block;
  width:4px;
  height:15px;
  margin-right:8px;
  background:var(--orange);
  border-radius:4px;
  vertical-align:-2px;
}

.brand-sub{
  font-size:11px;
  letter-spacing:.12em;
  color:#6E879E;
  margin-left:12px;
  white-space:nowrap;
}

.nav-desktop{
  display:flex;
  align-items:center;
  gap:18px;
}

.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  list-style:none;
  margin:0;
  padding:0;
}

.nav-menu > li > a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:9px 14px;
  border-radius:999px;
  color:var(--text2);
  font-weight:500;
  font-size:14px;
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}

.nav-menu > li > a:hover{
  color:#fff;
  background:rgba(255,255,255,.05);
}

.nav-menu > li > a.active{
  color:#fff;
  font-weight:600;
}

.nav-menu > li > a.active::after{
  content:"";
  display:block;
  width:16px;
  height:2px;
  margin:2px auto 0;
  background:var(--orange);
  border-radius:2px;
}

.dropdown{
  position:relative;
}

.dropdown > a svg{
  color:var(--steel);
  transition:transform .18s ease,color .18s ease;
}

.dropdown:hover > a svg,
.dropdown:focus-within > a svg{
  transform:rotate(180deg);
  color:var(--orange);
}

.dropdown-panel{
  position:absolute;
  top:calc(100% + 14px);
  left:50%;
  width:256px;
  padding:10px;
  transform:translateX(-50%) translateY(8px);
  border:1px solid rgba(255,255,255,.1);
  border-radius:18px;
  background:rgba(11,22,40,.97);
  box-shadow:0 20px 52px rgba(0,0,0,.4);
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transition:opacity .18s ease,transform .18s ease,visibility .18s;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}

.dropdown:hover .dropdown-panel,
.dropdown:focus-within .dropdown-panel{
  opacity:1;
  visibility:visible;
  transform:translateX(-50%) translateY(0);
  pointer-events:auto;
}

.dropdown-panel a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 14px;
  border-radius:12px;
  color:#D6E2EF;
  font-size:14px;
  transition:background .16s ease,color .16s ease;
}

.dropdown-panel a:hover{
  background:rgba(34,107,255,.15);
  color:#fff;
}

.dropdown-panel a.active-page-link{
  color:var(--orange);
  background:rgba(255,138,60,.09);
}

.info-arrow{
  color:#6E8AA5;
  transition:transform .18s ease,color .18s ease;
}

.dropdown-panel a:hover .info-arrow{
  color:var(--orange);
  transform:translateX(4px);
}

.header-cta{
  flex-shrink:0;
}

.button-orange{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border:1px solid rgba(255,138,60,.45);
  border-radius:999px;
  background:var(--orange);
  color:#0A1622;
  font-size:15px;
  font-weight:700;
  box-shadow:0 6px 24px rgba(255,138,60,.25);
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;
}

.button-orange:hover{
  background:#FFA260;
  transform:translateY(-1px);
  box-shadow:0 10px 32px rgba(255,138,60,.36);
}

.button-orange:active{
  transform:scale(.98);
}

.button-sm{
  padding:9px 18px;
  font-size:14px;
}

.button-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 22px;
  border:1px solid rgba(255,255,255,.16);
  border-radius:999px;
  color:#DCE8F5;
  font-weight:600;
  font-size:15px;
  background:rgba(255,255,255,.02);
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}

.button-outline:hover{
  background:rgba(255,255,255,.07);
  border-color:rgba(255,255,255,.26);
  color:#fff;
}

.nav-mobile-trigger{
  display:none;
  position:relative;
}

.nav-mobile-trigger details{
  position:relative;
}

.nav-mobile-trigger summary{
  display:flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border:1px solid var(--glass-border);
  border-radius:12px;
  background:rgba(255,255,255,.03);
  cursor:pointer;
  user-select:none;
  list-style:none;
}

.nav-mobile-trigger summary::-webkit-details-marker{
  display:none;
}

.nav-mobile-trigger summary .bar{
  position:relative;
  width:20px;
  height:2px;
  background:#C9DAE8;
  border-radius:2px;
}

.nav-mobile-trigger summary .bar::before,
.nav-mobile-trigger summary .bar::after{
  content:"";
  position:absolute;
  left:0;
  width:20px;
  height:2px;
  background:#C9DAE8;
  border-radius:2px;
  transition:transform .18s ease;
}

.nav-mobile-trigger summary .bar::before{
  top:-7px;
}

.nav-mobile-trigger summary .bar::after{
  top:7px;
}

.nav-mobile-trigger details[open] summary .bar{
  background:transparent;
}

.nav-mobile-trigger details[open] summary .bar::before{
  transform:rotate(45deg);
  top:0;
}

.nav-mobile-trigger details[open] summary .bar::after{
  transform:rotate(-45deg);
  top:0;
}

.mobile-panel{
  position:absolute;
  top:calc(100% + 12px);
  right:0;
  width:min(320px,calc(100vw - 32px));
  padding:16px;
  border:1px solid rgba(255,255,255,.1);
  border-radius:18px;
  background:rgba(9,19,34,.98);
  box-shadow:0 24px 60px rgba(0,0,0,.42);
  display:flex;
  flex-direction:column;
  gap:8px;
}

.panel-subheading{
  display:block;
  font-size:12px;
  color:var(--text3);
  letter-spacing:.08em;
  padding:10px 8px 4px;
}

.mobile-link{
  display:block;
  padding:12px 14px;
  border-radius:12px;
  color:#C7D8EA;
  font-size:15px;
  transition:background .16s ease,color .16s ease;
}

.mobile-link:hover{
  background:rgba(255,255,255,.05);
  color:#fff;
}

.mobile-link.active,
.mobile-link.is-current{
  color:var(--orange);
  background:rgba(255,138,60,.08);
}

/* ---------- Subpage Hero ---------- */
.subhero{
  position:relative;
  padding:54px 0 54px;
  border-bottom:1px solid rgba(255,255,255,.05);
  background:
    linear-gradient(180deg,rgba(10,20,32,.82),rgba(13,26,46,.92)),
    url('/assets/images/backpic/back-1.webp') center 32% / cover no-repeat;
  overflow:hidden;
}

.subhero::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-130px;
  width:420px;
  height:420px;
  background:radial-gradient(circle,rgba(34,107,255,.14),transparent 65%);
  pointer-events:none;
}

.subhero-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:40px;
}

.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:22px;
  font-size:13px;
  color:#728CA8;
}

.breadcrumb a{
  color:var(--steel-light);
  transition:color .16s ease;
}

.breadcrumb a:hover{
  color:#fff;
}

.crumb-active{
  color:#C4D5E8;
}

.subhero h1{
  font-size:clamp(30px,4.6vw,44px);
  font-weight:800;
  color:#F6F9FD;
  letter-spacing:.01em;
}

.subhero-desc{
  max-width:620px;
  margin-top:18px;
  color:rgba(194,214,234,.86);
  font-size:15px;
  line-height:1.9;
}

.hero-glass-card{
  width:330px;
  flex-shrink:0;
  padding:24px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:22px;
  background:rgba(16,31,50,.58);
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}

.hero-card-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:18px;
}

.live-state{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 13px;
  border-radius:999px;
  background:rgba(43,211,163,.1);
  color:#9EEED7;
  font-size:13px;
  font-weight:600;
}

.pulse-dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 0 rgba(43,211,163,.45);
  animation:softPulse 2s infinite;
}

@keyframes softPulse{
  0%{box-shadow:0 0 0 0 rgba(43,211,163,.45);}
  70%{box-shadow:0 0 0 8px rgba(43,211,163,0);}
  100%{box-shadow:0 0 0 0 rgba(43,211,163,0);}
}

.hero-card-state{
  color:rgba(234,242,252,.88);
  font-size:17px;
  font-weight:700;
}

.hero-card-note{
  margin-top:8px;
  color:#89A5C1;
  font-size:13px;
  line-height:1.8;
}

.hero-card-meta{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:12px;
  color:#6F8CA9;
  line-height:1.9;
}

/* ---------- Switch chips ---------- */
.switch-section{
  padding:28px 0 6px;
}

.category-switch-row{
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
  padding:16px 18px;
  border:1px solid var(--glass-border);
  border-radius:18px;
  background:rgba(15,29,46,.62);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}

.switch-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:#7F99B5;
  font-size:14px;
  white-space:nowrap;
}

.switch-label::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:3px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(34,107,255,.5);
}

.flake-link{
  display:inline-flex;
  align-items:center;
  padding:8px 18px;
  border-radius:999px;
  border:1px solid var(--glass-border);
  background:rgba(255,255,255,.03);
  color:var(--text2);
  font-size:14px;
  font-weight:500;
  transition:all .18s ease;
}

.flake-link:hover{
  border-color:var(--glass-border-hover);
  background:rgba(255,255,255,.07);
  color:#fff;
}

.flake-link.active-chip{
  border-color:rgba(34,107,255,.7);
  background:rgba(34,107,255,.92);
  color:#fff;
  box-shadow:0 8px 24px rgba(34,107,255,.18);
}

/* ---------- Page section ---------- */
.page-section{
  padding:80px 0;
}

@media(max-width:768px){
  .page-section{
    padding:58px 0;
  }
}

.section-overline{
  display:block;
  margin-bottom:10px;
  color:var(--orange);
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
}

.section-title{
  color:#F1F7FF;
  font-size:clamp(21px,3vw,29px);
  font-weight:800;
}

.section-lead{
  max-width:720px;
  margin-top:14px;
  color:var(--steel-light);
  font-size:15px;
  line-height:1.9;
}

/* ---------- Prep ---------- */
.prep-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:68px;
  align-items:center;
}

.prep-media{
  position:relative;
  border:1px solid rgba(255,255,255,.12);
  border-radius:24px;
  overflow:hidden;
  box-shadow:0 24px 72px rgba(0,0,0,.35);
}

.prep-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}

.prep-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(200deg,rgba(10,20,32,.12),rgba(10,20,32,.54));
  pointer-events:none;
}

.prep-caption{
  position:absolute;
  left:18px;
  bottom:16px;
  right:18px;
  z-index:2;
  display:flex;
  justify-content:space-between;
  align-items:center;
  color:#F2F7FD;
  font-size:14px;
}

.prep-caption span:first-child::before{
  content:"";
  display:inline-block;
  width:6px;
  height:6px;
  margin-right:8px;
  border-radius:50%;
  background:var(--green);
  vertical-align:2px;
}

.check-list{
  display:grid;
  gap:18px;
  margin-top:30px;
}

.check-item{
  display:grid;
  grid-template-columns:34px 1fr;
  gap:16px;
  align-items:flex-start;
  padding:17px 18px;
  border:1px solid rgba(255,255,255,.07);
  border-radius:16px;
  background:rgba(18,34,56,.34);
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}

.check-item:hover{
  background:rgba(25,44,70,.42);
  border-color:rgba(255,255,255,.14);
  transform:translateY(-1px);
}

.check-icon{
  display:flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:rgba(34,107,255,.16);
  color:#7AA9FF;
}

.check-item h3{
  color:#EAF4FF;
  font-size:16px;
  font-weight:700;
}

.check-item p{
  margin-top:7px;
  color:#8BA2BC;
  font-size:14px;
  line-height:1.8;
}

/* ---------- Step rail ---------- */
.step-section{
  position:relative;
}

.step-section::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:100%;
  height:100%;
  background:
    radial-gradient(circle at 20% 30%,rgba(34,107,255,.06),transparent 42%),
    radial-gradient(circle at 88% 82%,rgba(255,138,60,.045),transparent 38%);
  pointer-events:none;
}

.step-band{
  position:relative;
  z-index:2;
  padding:34px;
  border:1px solid rgba(255,255,255,.08);
  border-radius:24px;
  background:linear-gradient(160deg,rgba(15,27,44,.82),rgba(9,20,35,.76));
  box-shadow:var(--shadow-card);
}

.step-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}

.step-card{
  position:relative;
  padding:24px 20px;
  border:1px solid rgba(255,255,255,.07);
  border-radius:16px;
  background:rgba(7,17,30,.5);
  transition:border-color .2s ease,transform .2s ease,background .2s ease;
}

.step-card:hover{
  border-color:rgba(255,255,255,.16);
  background:rgba(20,36,58,.42);
  transform:translateY(-3px);
}

.step-card::after{
  content:"→";
  position:absolute;
  right:-18px;
  top:50%;
  width:24px;
  height:24px;
  transform:translateY(-50%);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--orange);
  font-size:17px;
  font-weight:700;
  z-index:3;
}

.step-card:last-child::after{
  display:none;
}

.step-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:26px;
  height:26px;
  border-radius:9px;
  background:rgba(255,138,60,.14);
  color:var(--orange);
  font-size:13px;
  font-weight:800;
}

.step-card h3{
  margin-top:18px;
  color:#E8F2FD;
  font-size:17px;
  font-weight:700;
}

.step-card p{
  margin-top:10px;
  color:#7F98B3;
  font-size:13px;
  line-height:1.8;
}

/* ---------- Status ---------- */
.status-ribbon{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  align-items:center;
  gap:36px;
  padding:32px 36px;
  border-radius:22px;
  border:1px solid rgba(255,255,255,.1);
  background:linear-gradient(135deg,rgba(22,38,61,.7),rgba(12,25,44,.62));
  box-shadow:var(--shadow-card);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}

.status-live{
  display:flex;
  align-items:center;
  gap:18px;
}

.status-live .pulse-dot{
  width:14px;
  height:14px;
}

.status-copy strong{
  display:block;
  color:#F0F6FE;
  font-size:19px;
  font-weight:800;
}

.status-copy span{
  display:block;
  margin-top:6px;
  color:#7A97B4;
  font-size:13px;
}

.status-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:flex-end;
}

.mini-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.09);
  background:rgba(255,255,255,.03);
  color:#A8C0D8;
  font-size:13px;
}

.status-note-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
  margin-top:24px;
}

.status-note{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:18px;
  border:1px solid rgba(255,255,255,.08);
  border-radius:16px;
  background:rgba(17,31,52,.5);
}

.note-icon{
  display:flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  flex-shrink:0;
  border-radius:10px;
  background:rgba(255,255,255,.06);
  color:var(--steel-light);
}

.status-note h3{
  color:#DCECFB;
  font-size:15px;
  font-weight:700;
}

.status-note p{
  margin-top:6px;
  color:#718DA8;
  font-size:13px;
  line-height:1.8;
}

/* ---------- Overview dual ---------- */
.info-duo{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:70px;
  align-items:center;
}

.entry-list{
  display:grid;
  gap:14px;
  margin-top:28px;
}

.entry-line{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:15px 16px;
  border:1px solid rgba(255,255,255,.07);
  border-radius:14px;
  background:rgba(18,34,56,.32);
  transition:background .18s ease,border-color .18s ease;
}

.entry-line:hover{
  border-color:rgba(255,255,255,.14);
  background:rgba(25,44,70,.4);
}

.entry-line-icon{
  display:flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  flex-shrink:0;
  border-radius:10px;
  background:rgba(34,107,255,.14);
  color:#77A7FA;
}

.entry-line h3{
  color:#DEEEFA;
  font-size:15px;
  font-weight:700;
}

.entry-line p{
  margin-top:5px;
  color:#7793AF;
  font-size:13px;
  line-height:1.7;
}

.collage{
  position:relative;
  min-height:430px;
}

.collage-main{
  position:absolute;
  left:0;
  top:10px;
  width:74%;
  border-radius:20px;
  border:1px solid rgba(255,255,255,.14);
  overflow:hidden;
  box-shadow:0 26px 70px rgba(0,0,0,.42);
}

.collage-sub{
  position:absolute;
  right:0;
  bottom:10px;
  width:62%;
  border-radius:18px;
  border:6px solid #0C1B2D;
  overflow:hidden;
  box-shadow:0 18px 54px rgba(0,0,0,.5);
  z-index:3;
}

.collage img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}

/* ---------- FAQ ---------- */
.faq-wrap{
  .faq-wrap{
  max-width:860px;
  margin:38px auto 0;
  display:grid;
  gap:12px;
}

.faq-item{
  border:1px solid rgba(255,255,255,.08);
  border-radius:16px;
  background:rgba(14,28,46,.6);
  overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}

.faq-item[open]{
  border-color:rgba(255,255,255,.16);
  background:rgba(22,39,64,.62);
}

.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
  padding:18px 20px;
  cursor:pointer;
  font-weight:700;
  color:#DEEAF5;
  list-style:none;
}

.faq-item summary::-webkit-details-marker{
  display:none;
}

.faq-icon{
  position:relative;
  width:22px;
  height:22px;
  flex-shrink:0;
  border-radius:50%;
  background:rgba(34,107,255,.16);
}

.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:#7AA9FF;
  border-radius:2px;
  transform:translate(-50%,-50%);
}

.faq-icon::before{
  width:10px;
  height:2px;
}

.faq-icon::after{
  width:2px;
  height:10px;
  transition:transform .2s ease;
}

.faq-item[open] .faq-icon::after{
  transform:translate(-50%,-50%) rotate(90deg);
  opacity:0;
}

.faq-answer{
  padding:2px 20px 20px 62px;
  color:#829CB8;
  font-size:14px;
  line-height:1.9;
}

.faq-item[open] summary{
  color:#fff;
}

/* ---------- CTA ---------- */
.cta-slim{
  position:relative;
  padding:44px 18px;
  text-align:center;
  border:1px solid rgba(255,138,60,.26);
  border-radius:24px;
  background:
    radial-gradient(circle at 70% 30%,rgba(255,138,60,.1),transparent 46%),
    rgba(13,26,45,.72);
  box-shadow:var(--shadow-card);
  overflow:hidden;
}

.cta-slim h2{
  color:#F5FAFF;
  font-size:24px;
  font-weight:800;
}

.cta-slim p{
  margin:12px auto 0;
  max-width:560px;
  color:#8CA5C0;
  font-size:14px;
  line-height:1.9;
}

.cta-slim .button-orange{
  margin-top:24px;
}

/* ---------- Footer ---------- */
.site-footer{
  background:#08111E;
  border-top:1px solid rgba(255,255,255,.06);
  margin-top:40px;
}

.footer-body{
  padding-top:60px;
  padding-bottom:40px;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr 1fr 1.2fr;
  gap:44px;
}

.footer-brand-name{
  color:#E9F3FE;
  font-size:19px;
  font-weight:800;
}

.footer-brand-name::before{
  content:"";
  display:inline-block;
  width:4px;
  height:15px;
  margin-right:8px;
  background:var(--orange);
  border-radius:4px;
  vertical-align:-2px;
}

.footer-brand-desc{
  margin-top:16px;
  color:#607C98;
  font-size:13px;
  line-height:1.9;
  max-width:340px;
}

.footer-block-title{
  color:#CDE0F0;
  font-weight:700;
  font-size:14px;
}

.footer-links{
  margin-top:17px;
  display:grid;
  gap:9px;
  list-style:none;
  padding:0;
}

.footer-links a{
  color:#628097;
  font-size:13px;
  transition:color .16s ease,padding-left .16s ease;
}

.footer-links a:hover{
  color:var(--orange);
  padding-left:4px;
}

.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding:24px 0 28px;
  border-top:1px solid rgba(255,255,255,.06);
}

.footer-copy{
  color:#4F6884;
  font-size:13px;
}

.footer-domain-text{
  color:#6D8BA6;
  font-weight:600;
}

.backtop{
  color:#7F99B5;
  font-size:14px;
  transition:color .16s ease,transform .16s ease;
}

.backtop:hover{
  color:var(--orange);
  transform:translateY(-2px);
}

/* ---------- Responsive ---------- */
@media(max-width:1080px){
  .prep-grid{
    grid-template-columns:1fr;
    gap:44px;
  }

  .step-grid{
    grid-template-columns:1fr 1fr;
    gap:22px;
  }

  .step-card:nth-child(2)::after{
    display:none;
  }

  .info-duo{
    grid-template-columns:1fr;
    gap:46px;
  }

  .collage{
    max-width:560px;
    min-height:390px;
  }

  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:36px;
  }
}

@media(max-width:980px){
  .nav-desktop{
    display:none;
  }

  .nav-mobile-trigger{
    display:block;
  }

  .hero-glass-card{
    display:none;
  }

  .status-ribbon{
    grid-template-columns:1fr;
    padding:26px;
  }

  .status-meta{
    justify-content:flex-start;
  }
}

@media(max-width:720px){
  .step-grid{
    grid-template-columns:1fr;
  }

  .step-card::after{
    content:"↓";
    position:absolute;
    left:50%;
    top:auto;
    right:auto;
    bottom:-24px;
    transform:translateX(-50%);
  }

  .step-card:last-child::after{
    display:none;
  }

  .status-note-grid{
    grid-template-columns:1fr;
  }

  .collage{
    min-height:300px;
  }

  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
  }

  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }

  .faq-answer{
    padding-left:20px;
  }
}

@media(max-width:520px){
  .brand-cn{
    font-size:16px;
  }

  .brand-sub{
    font-size:10px;
    letter-spacing:.05em;
  }

  .category-switch-row{
    gap:8px;
    padding:12px;
  }

  .flake-link{
    padding:7px 13px;
    font-size:13px;
  }

  .status-ribbon{
    padding:22px 18px;
  }

  .cta-slim h2{
    font-size:20px;
  }
}

/* roulang page: category2 */
:root {
  --bg-deep:#0A1420;
  --bg-panel:#0F1D2E;
  --glass: rgba(16,31,50,.64);
  --main:#226BFF;
  --main-light:#4A8BFF;
  --blue-2:#2BD3A3;
  --blue-3:#8BA2BC;
  --blue-4:#5B738C;
  --blue-5:#6B8BA6;
  --blue-6:#8DA6C0;
  --orange:#FF8A3C;
  --green:#2BD3A3;
  --text1:#EAF2FC;
  --text2:#8BA2BC;
  --text3:#5B738C;
  --line: rgba(255,255,255,.08);
  --hover-line:rgba(255,255,255,.16);
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-card:0 18px 55px rgba(3,10,20,.36);
  --shadow-hover:0 26px 70px rgba(3,10,20,.5);
  --font-cn: "PingFang SC","Microsoft YaHei","HarmonyOS Sans SC","Noto Sans SC","Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  background:var(--bg-deep);
  background-image:
    radial-gradient(circle at 18% 12%, rgba(34,107,255,.12), transparent 24%),
    radial-gradient(circle at 86% 38%, rgba(74,139,255,.07), transparent 30%);
  color:var(--text1);
  -webkit-font-smoothing:antialiased;
}
.container{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px}
a{color:var(--text1);text-decoration:none;transition:color .22s ease}
ul,ol{list-style:none}
img{display:block;max-width:100%;border:0;object-fit:cover}
button,.button,a.button{font-family:var(--font-cn)}
::selection{background:rgba(255,138,60,.24);color:#fff}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--main-light);outline-offset:3px;border-radius:6px}

/* 头部导航 */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(9,17,28,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,.07);
}
.site-header .container{max-width:1320px}
.header-flex{display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:16px}
.brand-link{display:flex;flex-direction:column;gap:1px;line-height:1.25;padding:10px 0;margin-right:16px}
.brand-cn{font-size:19px;font-weight:800;letter-spacing:.02em;color:var(--text1)}
.brand-sub{font-size:11px;color:var(--text2);font-weight:400;letter-spacing:.06em}
.nav-desktop{display:flex;align-items:center;gap:8px}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu li{position:relative}
.nav-menu > li > a{
  display:inline-flex;align-items:center;gap:5px;
  font-size:15px;font-weight:500;color:var(--text2);
  padding:8px 15px;border-radius:10px;transition:all .2s ease;
}
.nav-menu > li > a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav-menu > li > a.active{color:var(--text1);position:relative}
.nav-menu > li > a.active::after{content:"";position:absolute;left:18%;right:18%;bottom:0;height:2px;background:var(--orange);border-radius:4px}
.dropdown-panel{
  position:absolute;top:calc(100% + 14px);left:-14px;min-width:278px;
  background:rgba(12,24,40,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:8px;
  box-shadow:0 24px 60px rgba(5,8,16,.55);
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all .24s ease;z-index:50;
}
.dropdown:hover .dropdown-panel,.dropdown:focus-within .dropdown-panel{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-panel::before{content:"";position:absolute;top:-15px;left:0;width:100%;height:15px}
.dropdown-panel a{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;color:var(--text2);line-height:1.5;padding:10px 12px;border-radius:11px;
}
.dropdown-panel a:hover{color:#fff;background:rgba(34,107,255,.14)}
.info-arrow{font-size:16px;color:var(--orange);opacity:0;transform:translateX(-4px);transition:all .2s ease}
.dropdown-panel a:hover .info-arrow{opacity:1;transform:translateX(0)}
.dropdown-panel a.active{
  color:var(--text1);
  background:rgba(34,107,255,.12);
  box-shadow:inset 3px 0 0 var(--orange);
}
.dropdown-panel a.active .info-arrow{opacity:1;transform:none}
.header-cta{white-space:nowrap}
.nav-mobile-trigger{display:none;z-index:80}
.nav-mobile-trigger details{position:relative}
.nav-mobile-trigger summary{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:5px;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);cursor:pointer;list-style:none;
}
.nav-mobile-trigger summary::-webkit-details-marker{display:none}
.bar{position:relative;width:19px;height:0;border-top:1.6px solid var(--text1);display:inline-block}
.bar::before,.bar::after{content:"";position:absolute;left:0;width:19px;height:1.6px;background:var(--text1);border-radius:3px}
.bar::before{top:-7px}
.bar::after{top:7px}
.mobile-panel{
  position:absolute;top:56px;right:0;width:320px;max-width:calc(100vw - 24px);
  background:rgba(10,20,32,.97);border:1px solid var(--hover-line);border-radius:18px;
  padding:12px;box-shadow:var(--shadow-hover);backdrop-filter:blur(22px);
}
.mobile-link{
  display:block;font-size:15px;font-weight:500;color:var(--text2);
  padding:10px 14px;border-radius:10px;line-height:1.6;
}
.mobile-link:hover,.mobile-link.active{background:rgba(34,107,255,.1);color:#fff}
.mobile-link.active{box-shadow:inset 3px 0 0 var(--orange)}
.panel-subheading{display:block;font-size:11px;color:var(--text3);padding:12px 14px 4px;letter-spacing:.12em}
.nav-desktop{display:flex}

/* 通用按钮 */
.button-orange,.button-ghost,.button-sm{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:10px;cursor:pointer;transition:all .22s ease;border:0;font-weight:700}
.button-orange{background:var(--orange);color:#17121a;padding:13px 27px;font-size:15px;box-shadow:0 0 0 rgba(255,138,60,0);position:relative}
.button-orange:hover{transform:translateY(-1px);background:#ff9b5c;color:#0d1117;box-shadow:0 0 26px rgba(255,138,60,.35)}
.button-orange:active{transform:scale(.98)}
.button-ghost{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.2);color:var(--text1);padding:12px 24px;font-size:15px;backdrop-filter:blur(6px)}
.button-ghost:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.34);transform:translateY(-1px)}
.button-sm{padding:10px 18px;font-size:14px}
.header-cta{font-size:14px}

/* 页面骨架 */
.page-main{overflow:hidden}
.section-space{padding:92px 0}
.section-space-sm{padding:66px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--orange);letter-spacing:.14em;font-weight:600;margin-bottom:12px}
.eyebrow::after{content:"";width:34px;height:1px;background:rgba(255,138,60,.5)}
h2{font-size:27px;line-height:1.3;letter-spacing:.01em;margin:0 0 14px}
.lead-text{color:var(--text2);max-width:820px;font-size:16px}

/* Hero 子页 */
.page-hero{
  position:relative;
  padding:58px 0 68px;
  background-color:var(--bg-panel);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center 46%;
  overflow:hidden;
}
.page-hero:after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(118deg, rgba(10,20,32,.94) 0%, rgba(10,20,32,.88) 32%, rgba(15,29,46,.74) 68%, rgba(14,28,48,.68) 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb{font-size:13px;color:var(--text2);margin-bottom:34px;display:flex;flex-wrap:wrap}
.breadcrumb a{color:var(--blue-3)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{color:var(--text3);margin-left:8px;margin-right:8px}
.breadcrumb em{font-style:normal;color:#dceaf9}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:end}
.eyebrow-block{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:var(--radius-pill);background:rgba(255,138,60,.1);border:1px solid rgba(255,138,60,.24);color:var(--orange);font-size:13px;margin-bottom:20px}
.eyebrow-block i{display:inline-block;width:7px;height:7px;background:var(--orange);border-radius:50%}
.page-hero h1{font-size:40px;line-height:1.2;margin-bottom:18px;max-width:760px;font-weight:800;letter-spacing:.01em}
.page-hero .hero-desc{font-size:17px;color:var(--blue-3);max-width:620px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-status{
  position:relative;
  padding:20px 22px;
  border-radius:20px;
  background:rgba(13,25,42,.58);
  backdrop-filter:blur(18px);
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 26px 58px rgba(3,10,20,.42);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.status-head{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text2);border-bottom:1px dashed rgba(255,255,255,.1);padding-bottom:12px;margin-bottom:16px}
.online-dot{display:inline-flex;gap:6px;align-items:center;color:var(--green)}
.online-dot::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 4px rgba(43,211,163,.15)}
.status-title{font-size:16px;font-weight:700;color:var(--text1);display:flex;align-items:center;justify-content:space-between}
.status-title small{font-size:12px;color:var(--text3);font-weight:400}
.status-info{color:var(--text2);font-size:14px;line-height:1.75}
.status-meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--text2);margin-top:14px}
.bullet{display:inline-flex;align-items:center;gap:6px}
.bullet::before{content:"";width:5px;height:5px;background:var(--main-light);border-radius:50%}
.hero-status .button{width:100%;margin-top:18px;justify-content:center}

/* 分类快速切换 */
.category-jump{border-bottom:1px solid var(--line);background:rgba(255,255,255,.012)}
.chips-wrap{padding:24px 0;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.chips-label{font-size:13px;color:var(--text3);white-space:nowrap;display:flex;align-items:center;gap:8px}
.chips-label::before{content:"";width:6px;height:6px;background:var(--orange);border-radius:50%}
.chips-row{display:flex;gap:10px;flex-wrap:wrap}
.chips-row a{
  padding:8px 18px;border-radius:var(--radius-pill);font-size:14px;font-weight:500;
  border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text2);transition:.2s;
}
.chips-row a:hover{border-color:var(--hover-line);background:rgba(255,255,255,.06);color:#fff}
.chips-row a.chip-active{background:var(--main);border-color:rgba(74,139,255,.72);color:#fff;font-weight:700;box-shadow:0 0 22px rgba(34,107,255,.28)}

/* 总览 */
.head-area{margin-bottom:38px;display:flex;align-items:flex-end;justify-content:space-between;gap:30px;flex-wrap:wrap}
.overview-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:32px}
.visual-frame{border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow-card);background:#0a1626;min-height:320px}
.visual-frame img{width:100%;height:100%;min-height:320px;object-fit:cover;transition:transform .6s ease}
.visual-frame:hover img{transform:scale(1.02)}
.checker-list{display:flex;flex-direction:column;gap:8px;margin-top:20px}
.checker-list li{display:flex;gap:11px;align-items:flex-start;color:var(--text2);font-size:15px;line-height:1.7}
.checker-list li::before{content:"";flex:0 0 18px;height:18px;margin-top:7px;border-radius:50%;border:1px solid rgba(43,211,163,.6);background:rgba(43,211,163,.1)}
.deep-card{
  padding:28px;border-radius:var(--radius-lg);background:rgba(15,29,46,.8);
  border:1px solid var(--line);box-shadow:var(--shadow-card);backdrop-filter:blur(10px);
}
.deep-card h3{font-size:19px;font-weight:700;color:var(--text1)}
.floor-text{color:var(--text3);font-size:14px}

/* 路线步骤 */
.route-section{background:rgba(13,28,44,.44);border-top:1px solid rgba(255,255,255,.04);border-bottom:1px solid rgba(255,255,255,.04)}
.route-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:10px}
.route-node{
  position:relative;padding:25px;border-radius:17px;
  background:rgba(16,31,50,.62);border:1px solid var(--line);
  backdrop-filter:blur(12px);transition:.24s ease;height:100%;
}
.route-node:hover{transform:translateY(-4px);border-color:rgba(74,139,255,.34);background:rgba(19,38,62,.7)}
.node-num{font-size:30px;font-weight:800;color:transparent;-webkit-text-stroke:1px rgba(74,139,255,.75);display:block;line-height:1;margin-bottom:16px;font-feature-settings:'tnum'}
.route-node h3{margin-bottom:8px;color:#fff;font-size:17px}
.route-node p{font-size:13px;color:var(--blue-3);line-height:1.7}
.route-node:not(:last-child)::after{
  content:"→";position:absolute;right:-15px;top:50%;transform:translateY(-50%);
  color:rgba(255,138,60,.6);font-size:18px;z-index:3;font-weight:700;
}

/* 推荐阅读卡片 稍复杂的分类版 */
.feature-panel .deep-card{height:100%}
.grid-c2{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.imgcard-frame{border-radius:14px;overflow:hidden;height:210px}
.imgcard-frame img{width:100%;height:100%;object-fit:cover}
.more-content-list{margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:13px}
.more-content-list a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  background:rgba(255,255,255,.024);border:1px solid var(--line);padding:12px 15px;
  border-radius:12px;color:var(--text2);font-size:14px;
}
.more-content-list a:hover{background:rgba(34,107,255,.08);border-color:rgba(74,139,255,.3);color:#fff}

/* 面板状态 */
.state-panel{display:grid;grid-template-columns:1.15fr .85fr;gap:30px;align-items:center}
.state-bar{display:flex;flex-direction:column;gap:20px;margin-top:24px}
.task-line{display:grid;grid-template-columns:110px 1fr 130px;gap:14px;align-items:center;background:rgba(255,255,255,.02);border:1px solid var(--line);padding:13px 16px;border-radius:13px;transition:.2s}
.task-line:hover{background:rgba(255,255,255,.045)}
.task-name{color:#d7e6f7;font-size:14px;font-weight:600}
.task-bar{position:relative;height:8px;background:rgba(255,255,255,.08);border-radius:999px;overflow:hidden}
.task-bar span{position:absolute;inset:0;width:0%;border-radius:inherit;transition:width .28s}
.bar-done span{background:var(--green)}
.bar-active span{background:linear-gradient(90deg,var(--orange),#ffb26a)}
.task-meta{font-size:12px;color:var(--text3);text-align:right}
.task-done .task-name{color:var(--green)}
.task-done .task-meta{color:rgba(43,211,163,.8)}
.task-hold .task-meta{color:var(--text3)}
.task-tags{display:flex;gap:8px;flex-wrap:wrap}
.minitag{font-size:12px;padding:3px 11px;border-radius:var(--radius-pill);border:1px solid var(--line);color:var(--text2)}

/* 表格 / 模式说明 */
.spec-table{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;font-size:14px;margin-top:32px}
.spec-table th,.spec-table td{padding:15px 16px;text-align:left;border-bottom:1px solid rgba(255,255,255,.06);line-height:1.7}
.spec-table th{background:rgba(34,107,255,.08);color:#ddebf8;font-weight:600;color:var(--text1)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:none}
.spec-table td{color:var(--text2)}
.spec-table tr:hover td{background:rgba(255,255,255,.035);color:var(--text1)}
.tag{display:inline-block;padding:2px 10px;border-radius:999px;background:rgba(255,138,60,.1);color:var(--orange);border:1px solid rgba(255,138,60,.2);font-size:12px}
.tag-blue{background:rgba(34,107,255,.12);color:#90b4ff;border-color:rgba(34,107,255,.24)}
.tag-green{background:rgba(43,211,163,.1);color:var(--green);border-color:rgba(43,211,163,.2)}

/* FAQ */
.faq-wrap .container{max-width:940px}
.faq-wrap details{
  background:rgba(15,29,46,.7);padding:2px 25px 0;border-radius:17px;
  border:1px solid var(--line);margin-bottom:13px;transition:.24s;
}
.faq-wrap details summary{
  list-style:none;padding:19px 5px;cursor:pointer;font-size:16px;color:#dfedfb;font-weight:600;transition:.2s;display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq-wrap details summary::-webkit-details-marker{display:none}
.faq-wrap details summary:after{content:"+";font-size:23px;color:var(--orange);line-height:1;transition:.22s;flex:0 0 auto}
.faq-wrap details[open] summary:after{transform:rotate(45deg)}
.faq-wrap details p{color:var(--text2);font-size:14px;padding-bottom:20px;padding-right:20px;line-height:1.9}

/* CTA 条 */
.cta-strip{position:relative}
.cta-panel{
  border-radius:22px;overflow:hidden;padding:46px 44px;text-align:center;position:relative;
  background:radial-gradient(circle at 20% 20%, rgba(34,107,255,.24), transparent 40%),rgba(14,25,42,.68);
  border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(14px);
}
.cta-panel:before{content:"";position:absolute;top:0;left:12%;right:12%;height:1px;background:linear-gradient(90deg,transparent,rgba(255,138,60,.5),transparent)}
.cta-panel h2{font-size:26px}
.cta-panel p{color:var(--text2);max-width:640px;margin:0 auto 25px}
.cta-links{display:inline-flex;gap:10px;align-items:center;justify-content:center;flex-wrap:wrap}
.cta-textlink{color:var(--blue-3);font-size:14px}
.cta-textlink:hover{color:var(--orange)}

/* Footer */
.site-footer{background:#081220;border-top:1px solid rgba(255,255,255,.06);position:relative;padding-top:10px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(74,139,255,.4),transparent)}
.footer-body{padding:58px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand-name{font-size:20px;font-weight:800;margin-bottom:10px;color:#fff}
.footer-brand-desc{color:var(--text3);font-size:13px;line-height:1.8;max-width:310px}
.footer-block-title{font-size:15px;font-weight:700;margin-bottom:18px;color:#dfeaf5;position:relative}
.footer-block-title::after{content:"";display:block;width:24px;height:2px;background:var(--orange);margin-top:8px;border-radius:3px}
.footer-links li a{font-size:14px;padding:5px 0;color:var(--text2);display:inline-block}
.footer-links li a:hover{color:var(--orange);transform:translateX(2px)}
.footer-links{padding:0}
.footer-bottom{border-top:1px solid rgba(255,255,255,.05);padding:20px 0 24px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.footer-copy,.footer-copy a{color:var(--text3);font-size:13px}
.footer-domain-text{color:var(--blue-6)}
.backtop{border:0;cursor:pointer;background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text3);padding:5px 14px;border-radius:999px;font-size:13px;transition:.2s}
.backtop:hover{color:var(--orange);border-color:rgba(255,138,60,.35);background:rgba(255,138,60,.08)}

/* 响应式 */
@media (max-width: 1024px){
  .nav-desktop{display:none}
  .nav-mobile-trigger{display:block}
  .page-hero h1{font-size:34px}
  .route-grid{grid-template-columns:repeat(2,1fr)}
  .route-node:nth-child(2)::after{content:"↘";right:auto;left:50%;top:auto;bottom:-24px;transform:none}
}
@media (max-width: 860px){
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .overview-grid,.grid-c2,.state-panel,.footer-grid{grid-template-columns:1fr}
  .footer-brand-desc{max-width:100%;margin-bottom:14px}
  .spec-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .task-line{grid-template-columns:92px 1fr 90px}
}
@media (max-width: 560px){
  .container{padding-left:16px;padding-right:16px}
  .section-space{padding:58px 0}
  .page-hero{padding:40px 0 50px;background-position:42% center}
  .page-hero h1{font-size:27px}
  .page-hero .hero-desc{font-size:15px;line-height:1.7}
  .page-hero .container{padding-left:18px;padding-right:18px}
  .brand-sub{display:none}
  .brand-cn{font-size:17px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .button{width:100%}
  .route-grid{grid-template-columns:1fr}
  .route-node:not(:last-child)::after{content:"↓";right:auto;left:50%;top:auto;bottom:-21px;transform:translateX(-50%)}
  .two-card{grid-template-columns:1fr}
  .more-content-list{grid-template-columns:1fr}
  h2{font-size:22px}
  .cta-panel{padding:36px 18px}
  .footer-bottom{flex-direction:column;text-align:center}
  .cta-links{flex-direction:column}
  .mobile-panel{width:calc(100vw - 20px)}
}

/* roulang page: category3 */
:root {
        --bg-deep: #0A1420;
        --bg-page: #0F1D2E;
        --brand-blue: #226BFF;
        --brand-blue2: #4A8BFF;
        --steel: #6B8BA6;
        --steel2: #8DA6C0;
        --fire: #FF8A3C;
        --green: #2BD3A3;
        --text-main: #EAF2FC;
        --text-2: #8BA2BC;
        --text-3: #5B738C;
        --stroke: rgba(255, 255, 255, .08);
        --stroke-hover: rgba(255, 255, 255, .16);
        --glass: rgba(16, 31, 50, .64);
        --grad-fire: linear-gradient(135deg, #FF8A3C, #FFB37A);
        --radius-lg: 18px;
        --radius-md: 12px;
        --radius-sm: 10px;
        --shadow-card: 0 18px 50px rgba(0, 0, 0, .35);
        --font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
    }

    *,
    *:before,
    *:after {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
    }

    body {
        margin: 0;
        font-family: var(--font-family);
        background: var(--bg-deep);
        color: var(--text-main);
        line-height: 1.7;
        -webkit-font-smoothing: antialiased;
    }

    img {
        max-width: 100%;
        display: block;
    }

    a {
        color: inherit;
        text-decoration: none;
    }

    button,
    input,
    summary {
        font-family: inherit;
    }

    ul,
    ol {
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .container {
        width: 100%;
        max-width: 1240px;
        margin: 0 auto;
        padding-left: 20px;
        padding-right: 20px;
    }

    /* ---------- head top strip ---------- */
    .top-strip {
        background: #0B1626;
        border-bottom: 1px solid rgba(255, 255, 255, .05);
        color: var(--text-2);
        font-size: 13px;
        height: 38px;
        display: flex;
        align-items: center;
    }

    .top-strip-inner {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 14px;
    }

    .strip-domain {
        color: #A7BFD6;
        font-weight: 600;
        letter-spacing: .2px;
    }

    .strip-entry {
        color: var(--text-2);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }

    .strip-entry span {
        color: var(--steel2);
        transition: color .2s ease;
    }

    .strip-entry:hover span {
        color: var(--brand-blue2);
    }

    /* ---------- header ---------- */
    .site-header {
        position: sticky;
        top: 0;
        z-index: 50;
        background: rgba(10, 20, 32, .86);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-bottom: 1px solid rgba(255, 255, 255, .07);
    }

    .header-flex {
        display: flex;
        align-items: center;
        justify-content: space-between;
        min-height: 72px;
        gap: 18px;
    }

    .brand-link {
        display: flex;
        flex-direction: column;
        gap: 2px;
        flex-shrink: 0;
    }

    .brand-cn {
        font-size: 21px;
        font-weight: 700;
        letter-spacing: .2px;
        color: #fff;
        line-height: 1.3;
    }

    .brand-sub {
        font-size: 11px;
        color: var(--steel2);
        letter-spacing: .5px;
    }

    .nav-desktop {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .nav-menu {
        display: flex;
        align-items: center;
        gap: 2px;
    }

    .nav-menu>li>a {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        padding: 9px 14px;
        border-radius: var(--radius-sm);
        font-size: 15px;
        color: var(--text-2);
        transition: all .22s ease;
        position: relative;
    }

    .nav-menu>li>a:hover {
        color: #fff;
        background: rgba(255, 255, 255, .04);
    }

    .nav-menu>li>a.active {
        color: #fff;
        font-weight: 500;
    }

    .nav-menu>li>a.active:after {
        content: "";
        position: absolute;
        left: 14px;
        right: 14px;
        bottom: 2px;
        height: 2px;
        border-radius: 3px;
        background: var(--fire);
    }

    .dropdown {
        position: relative;
    }

    .dropdown-panel {
        position: absolute;
        top: calc(100% + 8px);
        left: 0;
        min-width: 250px;
        padding: 12px;
        background: rgba(15, 29, 46, .96);
        border: 1px solid rgba(255, 255, 255, .1);
        border-radius: 14px;
        backdrop-filter: blur(16px);
        box-shadow: 0 18px 40px rgba(0, 0, 0, .4);
        opacity: 0;
        visibility: hidden;
        transform: translateY(8px);
        transition: all .22s ease;
    }

    .dropdown:hover .dropdown-panel,
    .dropdown:focus-within .dropdown-panel {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .dropdown-panel a {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 11px 12px;
        border-radius: 10px;
        color: var(--text-2);
        font-size: 14px;
        transition: all .2s ease;
    }

    .dropdown-panel a:hover {
        background: rgba(255, 255, 255, .06);
        color: #fff;
    }

    .dropdown-panel a.is-current {
        background: rgba(34, 107, 255, .13);
        color: #fff;
    }

    .dropdown-panel a.is-current .info-arrow {
        color: var(--fire);
    }

    .info-arrow {
        color: var(--steel);
        font-size: 15px;
        transition: all .2s ease;
    }

    .button-orange {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        background: var(--grade-fire);
        color: #0A1420;
        font-weight: 700;
        border-radius: var(--radius-sm);
        border: none;
        cursor: pointer;
        transition: all .2s ease;
        box-shadow: 0 8px 24px rgba(255, 138, 60, .25);
    }

    .button-orange:hover {
        transform: translateY(-1px);
        box-shadow: 0 10px 28px rgba(255, 138, 60, .38);
        color: #0A1420;
    }

    .button-orange:active {
        transform: scale(.98);
    }

    .header-cta.button-sm {
        padding: 8px 18px;
        font-size: 14px;
        margin-left: 10px;
    }

    .nav-mobile-trigger {
        display: none;
    }

    .nav-mobile-trigger summary {
        list-style: none;
        width: 42px;
        height: 42px;
        display: flex;
        flex-direction: column;
        gap: 5px;
        align-items: center;
        justify-content: center;
        border: 1px solid rgba(255, 255, 255, .1);
        border-radius: 10px;
        cursor: pointer;
    }

    .nav-mobile-trigger summary::-webkit-details-marker {
        display: none;
    }

    .nav-mobile-trigger .bar {
        display: block;
        width: 20px;
        height: 2px;
        background: var(--text-main);
        border-radius: 3px;
    }

    .mobile-panel {
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #0D1928;
        border-bottom: 1px solid rgba(255, 255, 255, .09);
        padding: 22px 20px 26px;
        display: flex;
        flex-direction: column;
        gap: 4px;
        box-shadow: 0 20px 40px rgba(0, 0, 0, .45);
        z-index: 80;
    }

    .mobile-link {
        padding: 12px 14px;
        border-radius: 10px;
        color: var(--text-2);
        font-size: 15px;
    }

    .mobile-link.active {
        color: #fff;
        background: rgba(34, 107, 255, .16);
    }

    .panel-subheading {
        font-size: 12px;
        color: var(--text-3);
        text-transform: uppercase;
        letter-spacing: 1px;
        padding: 12px 14px 4px;
    }

    /* ---------- page hero ---------- */
    .page-hero {
        position: relative;
        padding: 62px 0 54px;
        background-color: #0B1723;
        background-image: url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center 38%;
        border-bottom: 1px solid rgba(255, 255, 255, .07);
    }

    .page-hero:after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(105deg, rgba(10, 20, 32, .97) 8%, rgba(12, 28, 44, .88) 45%, rgba(10, 20, 32, .58) 100%);
        z-index: 0;
    }

    .page-hero .hero-content {
        position: relative;
        z-index: 2;
        max-width: 760px;
    }

    .page-hero .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        border: 1px solid rgba(74, 139, 255, .3);
        background: rgba(34, 107, 255, .08);
        color: var(--brand-blue2);
        padding: 5px 12px;
        border-radius: 999px;
        font-size: 13px;
        margin-bottom: 18px;
    }

    .page-hero h1 {
        font-size: clamp(32px, 4.6vw, 46px);
        line-height: 1.2;
        font-weight: 800;
        margin: 0 0 20px;
        color: #fff;
        letter-spacing: .5px;
    }

    .page-hero h1 .hl-orange {
        color: var(--fire);
    }

    .hero-desc {
        font-size: 16px;
        line-height: 1.8;
        color: #AFC5DB;
        max-width: 600px;
        margin-bottom: 28px;
    }

    .page-hero .hero-meta {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        padding: 14px 18px;
        border-radius: 14px;
        background: rgba(16, 31, 50, .62);
        border: 1px solid rgba(255, 255, 255, .1);
        backdrop-filter: blur(10px);
        color: var(--text-2);
        font-size: 14px;
    }

    .dot-pulse {
        width: 8px;
        height: 8px;
        background: var(--green);
        border-radius: 50%;
        display: inline-block;
        box-shadow: 0 0 0 4px rgba(43, 211, 163, .13);
    }

    /* ---------- breadcrumb ---------- */
    .breadcrumb-wrap {
        padding: 18px 0 0;
        font-size: 13px;
        color: var(--text-3);
    }

    .breadcrumb-wrap .container {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 6px;
    }

    .breadcrumb-wrap a {
        color: var(--text-2);
        transition: color .2s ease;
    }

    .breadcrumb-wrap a:hover {
        color: var(--brand-blue2);
    }

    .breadcrumb-wrap .sep {
        color: #3D5268;
    }

    .breadcrumb-wrap .current {
        color: var(--steel2);
    }

    /* ---------- category switch chips ---------- */
    .category-switch-wrap {
        padding: 28px 0 8px;
    }

    .category-chips {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .chip {
        padding: 9px 18px;
        font-size: 14px;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, .1);
        background: rgba(16, 31, 50, .6);
        color: var(--text-2);
        transition: all .22s ease;
    }

    .chip:hover {
        border-color: rgba(255, 255, 255, .22);
        color: #fff;
        background: rgba(16, 31, 50, .85);
    }

    .chip.active {
        background: var(--brand-blue);
        color: #fff;
        border-color: var(--brand-blue);
        box-shadow: 0 6px 20px rgba(34, 107, 255, .28);
    }

    /* ---------- section ---------- */
    .section-block {
        padding: 88px 0;
    }

    .section-block.compact {
        padding: 64px 0;
    }

    .section-heading {
        margin-bottom: 36px;
        max-width: 720px;
    }

    .section-heading .kicker {
        display: flex;
        align-items: center;
        gap: 8px;
        font-size: 14px;
        font-weight: 600;
        color: var(--brand-blue2);
        margin-bottom: 10px;
        letter-spacing: .6px;
    }

    .section-heading .kicker:before {
        content: "";
        width: 18px;
        height: 2px;
        background: var(--fire);
        border-radius: 3px;
    }

    .section-heading h2 {
        font-size: clamp(24px, 3vw, 32px);
        line-height: 1.3;
        margin: 0;
        color: #fff;
        font-weight: 700;
    }

    .section-heading p {
        color: var(--text-2);
        margin: 14px 0 0;
        font-size: 15px;
        line-height: 1.8;
    }

    .section-heading.center {
        margin-left: auto;
        margin-right: auto;
        text-align: center;
    }

    .section-heading.center .kicker {
        justify-content: center;
    }

    /* ---------- states preview ---------- */
    .state-board {
        background: rgba(13, 27, 43, .7);
        border: 1px solid var(--stroke);
        border-radius: var(--radius-lg);
        padding: 22px;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
        position: relative;
        overflow: hidden;
    }

    .state-board:before {
        content: "";
        position: absolute;
        top: 0;
        left: 12%;
        right: 12%;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(255, 138, 60, .5), transparent);
    }

    .state-item {
        background: rgba(255, 255, 255, .02);
        border: 1px solid rgba(255, 255, 255, .06);
        border-radius: var(--radius-md);
        padding: 22px 18px;
        position: relative;
        transition: all .24s ease;
    }

    .state-item:hover {
        background: rgba(255, 255, 255, .04);
        border-color: rgba(255, 255, 255, .14);
        transform: translateY(-3px);
    }

    .state-top {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-bottom: 18px;
    }

    .state-icon {
        width: 42px;
        height: 42px;
        border-radius: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
    }

    .state-icon.lock {
        background: rgba(91, 115, 140, .16);
        border: 1px solid rgba(255, 255, 255, .1);
        color: var(--text-2);
    }

    .state-icon.going {
        background: rgba(255, 138, 60, .12);
        border: 1px solid rgba(255, 138, 60, .26);
        color: var(--fire);
    }

    .state-icon.ok {
        background: rgba(43, 211, 163, .12);
        border: 1px solid rgba(43, 211, 163, .26);
        color: var(--green);
    }

    .state-name {
        color: #fff;
        font-weight: 600;
        font-size: 17px;
    }

    .state-item p {
        color: var(--text-2);
        font-size: 14px;
        line-height: 1.75;
        margin: 0 0 12px;
    }

    .state-tag {
        display: inline-block;
        font-size: 12px;
        color: var(--text-2);
        background: rgba(255, 255, 255, .04);
        padding: 4px 10px;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, .07);
    }

    /* ---------- progress master panel ---------- */
    .progress-panel-wrap {
        display: grid;
        grid-template-columns: repeat(12, 1fr);
        gap: 24px;
        align-items: center;
    }

    .progress-visual {
        grid-column: span 7;
        background: linear-gradient(145deg, rgba(16, 31, 50, .8), rgba(10, 22, 38, .86));
        border: 1px solid rgba(255, 255, 255, .09);
        border-radius: 20px;
        padding: 32px;
        position: relative;
        overflow: hidden;
    }

    .progress-visual:before {
        content: "";
        position: absolute;
        width: 360px;
        height: 360px;
        background: radial-gradient(circle, rgba(34, 107, 255, .12), transparent 65%);
        top: -120px;
        right: -80px;
    }

    .panel-headline {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 26px;
    }

    .panel-headline h3 {
        margin: 0;
        font-size: 18px;
        color: #fff;
    }

    .panel-headline .timeline-note {
        font-size: 13px;
        color: var(--text-3);
    }

    .progress-rail {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .rail-item {
        display: grid;
        grid-template-columns: 110px 1fr 42px;
        align-items: center;
        gap: 12px;
        padding: 12px 14px;
        background: rgba(255, 255, 255, .025);
        border: 1px solid rgba(255, 255, 255, .05);
        border-radius: 12px;
        transition: all .2s ease;
    }

    .rail-item:hover {
        border-color: rgba(255, 255, 255, .14);
        background: rgba(255, 255, 255, .04);
    }

    .rail-label {
        font-size: 14px;
        color: var(--text-2);
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .rail-label b {
        color: #fff;
        font-weight: 500;
    }

    .rail-track {
        height: 6px;
        background: rgba(255, 255, 255, .07);
        border-radius: 999px;
        overflow: hidden;
    }

    .rail-bar {
        height: 100%;
        border-radius: 999px;
        background: linear-gradient(90deg, #226BFF, #4A8BFF);
    }

    .rail-bar.done {
        background: linear-gradient(90deg, #1EAD88, #2BD3A3);
    }

    .rail-bar.doing {
        background: linear-gradient(90deg, #FF8A3C, #FFAF73);
    }

    .rail-value {
        font-size: 13px;
        color: var(--steel2);
        text-align: right;
    }

    .progress-note {
        margin-top: 18px;
        display: flex;
        align-items: flex-start;
        gap: 8px;
        font-size: 13px;
        color: var(--text-2);
        background: rgba(255, 255, 255, .025);
        border-left: 3px solid var(--brand-blue);
        padding: 10px 12px;
        border-radius: 0 10px 10px 0;
    }

    .progress-explain {
        grid-column: span 5;
    }

    .progress-explain h2 {
        font-size: 24px;
        color: #fff;
        margin: 0 0 14px;
        line-height: 1.4;
    }

    .progress-explain p {
        color: var(--text-2);
        font-size: 15px;
        line-height: 1.85;
        margin: 0 0 20px;
    }

    .check-list {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .check-list li {
        display: flex;
        gap: 10px;
        color: var(--text-2);
        font-size: 14px;
        line-height: 1.7;
    }

    .check-list li .check-mark {
        width: 18px;
        height: 18px;
        flex-shrink: 0;
        border-radius: 50%;
        background: rgba(43, 211, 163, .14);
        border: 1px solid rgba(43, 211, 163, .25);
        color: var(--green);
        font-size: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-top: 2px;
    }

    /* ---------- flow steps ---------- */
    .steps-flow {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
        position: relative;
    }

    .step-card {
        background: rgba(16, 31, 50, .6);
        border: 1px solid rgba(255, 255, 255, .08);
        border-radius: 16px;
        padding: 24px 20px;
        position: relative;
        transition: all .24s ease;
    }

    .step-card:hover {
        border-color: rgba(255, 255, 255, .16);
        transform: translateY(-4px);
        background: rgba(16, 31, 50, .9);
    }

    .step-num {
        width: 34px;
        height: 34px;
        border-radius: 10px;
        background: rgba(255, 138, 60, .14);
        border: 1px solid rgba(255, 138, 60, .3);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 15px;
        font-weight: 700;
        color: var(--fire);
        margin-bottom: 16px;
    }

    .step-card h3 {
        font-size: 17px;
        color: #fff;
        margin: 0 0 8px;
        line-height: 1.4;
    }

    .step-card p {
        font-size: 14px;
        color: var(--text-2);
        line-height: 1.75;
        margin: 0;
    }

    .step-card:not(:last-child):after {
        content: "";
        position: absolute;
        top: 44px;
        right: -20px;
        width: 20px;
        height: 1px;
        background: linear-gradient(90deg, rgba(255, 255, 255, .12), transparent);
    }

    /* ---------- decision block ---------- */
    .info-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .info-card {
        border: 1px solid var(--stroke);
        border-radius: var(--radius-lg);
        background: rgba(15, 29, 46, .72);
        padding: 28px 24px;
        transition: all .24s ease;
    }

    .info-card:hover {
        border-color: var(--stroke-hover);
        background: rgba(16, 31, 50, .9);
        transform: translateY(-3px);
    }

    .info-card .icon {
        font-size: 28px;
        margin-bottom: 12px;
        display: flex;
        align-items: center;
        justify-content: center;
        width: 52px;
        height: 52px;
        background: rgba(34, 107, 255, .12);
        border: 1px solid rgba(74, 139, 255, .2);
        border-radius: 14px;
    }

    .info-card h3 {
        font-size: 17px;
        color: #fff;
        margin: 0 0 10px;
    }

    .info-card p {
        font-size: 14px;
        line-height: 1.75;
        color: var(--text-2);
        margin: 0;
    }

    .info-card .mini-link {
        display: inline-flex;
        align-items: center;
        gap: 4px;
        font-size: 13px;
        color: var(--brand-blue2);
        margin-top: 12px;
    }

    .info-card .mini-link:hover {
        text-decoration: underline;
    }

    /* ---------- faq ---------- */
    .faq-wrap {
        max-width: 860px;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .faq-item {
        background: rgba(15, 29, 46, .55);
        border: 1px solid rgba(255, 255, 255, .08);
        border-radius: 14px;
        overflow: hidden;
        transition: border-color .2s ease;
    }

    .faq-item:hover {
        border-color: rgba(255, 255, 255, .16);
    }

    .faq-item summary {
        list-style: none;
        cursor: pointer;
        padding: 20px 24px;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        color: #E5EEF8;
        font-size: 16px;
        line-height: 1.5;
        font-weight: 500;
    }

    .faq-item summary::-webkit-details-marker {
        display: none;
    }

    .faq-item summary:after {
        content: "+";
        font-size: 22px;
        color: var(--brand-blue2);
        transition: transform .2s ease;
        flex-shrink: 0;
    }

    .faq-item[open] summary:after {
        transform: rotate(45deg);
    }

    .faq-item .faq-body {
        padding: 0 24px 20px;
        font-size: 14px;
        color: var(--text-2);
        line-height: 1.9;
    }

    /* ---------- simple cta ---------- */
    .cta-inline {
        background: linear-gradient(105deg, rgba(17, 34, 54, .95), rgba(13, 25, 41, .9));
        border: 1px solid rgba(255, 255, 255, .1);
        border-radius: 20px;
        padding: 30px 34px;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 24px;
        position: relative;
        overflow: hidden;
    }

    .cta-inline:before {
        content: "";
        position: absolute;
        width: 220px;
        height: 220px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(255, 138, 60, .18), transparent 70%);
        top: -90px;
        right: 60px;
    }

    .cta-inline h3 {
        margin: 0 0 8px;
        font-size: 21px;
        color: #fff;
    }

    .cta-inline p {
        margin: 0;
        color: var(--text-2);
        font-size: 14px;
        line-height: 1.7;
    }

    .cta-action {
        flex-shrink: 0;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 14px;
    }

    .button-secondary {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 1px solid rgba(255, 255, 255, .25);
        color: #DCE9F7;
        background: rgba(255, 255, 255, .03);
        padding: 11px 20px;
        border-radius: var(--radius-sm);
        font-size: 15px;
        transition: all .22s ease;
    }

    .button-secondary:hover {
        background: rgba(255, 255, 255, .09);
        border-color: rgba(255, 255, 255, .45);
        color: #fff;
    }

    .button-secondary-md {
        padding: 12px 22px;
        font-size: 15px;
    }

    /* ---------- footer ---------- */
    .site-footer {
        background: #091220;
        position: relative;
        margin-top: 40px;
    }

    .site-footer:before {
        content: "";
        position: absolute;
        top: 0;
        left: 10%;
        right: 10%;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(255, 138, 60, .25), transparent);
    }

    .footer-body {
        padding-top: 56px;
    }

    .footer-grid {
        display: grid;
        grid-template-columns: 2fr 1.2fr 1.4fr 1.4fr;
        gap: 36px;
    }

    .footer-brand-name {
        font-size: 20px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 12px;
    }

    .footer-brand-desc {
        margin: 0;
        font-size: 13px;
        color: var(--text-3);
        line-height: 1.8;
        max-width: 290px;
    }

    .footer-block-title {
        font-size: 15px;
        color: #fff;
        font-weight: 600;
        margin-bottom: 14px;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .footer-links a {
        color: var(--text-2);
        font-size: 13px;
        line-height: 1.6;
        transition: color .2s ease;
    }

    .footer-links a:hover {
        color: var(--text-main);
    }

    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 14px;
        padding: 28px 0 34px;
        border-top: 1px solid rgba(255, 255, 255, .06);
        margin-top: 46px;
    }

    .footer-copy {
        font-size: 13px;
        color: var(--text-3);
    }

    .footer-domain-text {
        color: #8FA9C2;
    }

    .backtop {
        border: 1px solid rgba(255, 255, 255, .1);
        background: transparent;
        color: var(--steel2);
        border-radius: 999px;
        padding: 8px 16px;
        font-size: 13px;
        cursor: pointer;
        transition: all .2s ease;
    }

    .backtop:hover {
        color: #fff;
        border-color: rgba(255, 255, 255, .3);
        background: rgba(255, 255, 255, .04);
    }

    /* cover feature */
    .visual-story {
        display: grid;
        grid-template-columns: 1.1fr 1fr;
        gap: 32px;
        align-items: center;
    }

    .visual-image {
        border-radius: 20px;
        overflow: hidden;
        border: 1px solid var(--stroke);
        box-shadow: var(--shadow-card);
        position: relative;
    }

    .visual-image img {
        width: 100%;
        height: 320px;
        object-fit: cover;
    }

    .visual-image:after {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(200deg, rgba(10, 20, 32, .1), rgba(10, 20, 32, .55));
    }

    .visual-caption {
        position: relative;
        z-index: 2;
    }

    .feature-list {
        display: grid;
        gap: 10px;
        margin-top: 22px;
    }

    .feature-list .feature-row {
        display: grid;
        grid-template-columns: 34px 1fr;
        gap: 12px;
        padding: 14px;
        background: rgba(255, 255, 255, .02);
        border: 1px solid rgba(255, 255, 255, .05);
        border-radius: 12px;
    }

    .feature-list .feature-ico {
        width: 34px;
        height: 34px;
        border-radius: 9px;
        background: var(--glass);
        border: 1px solid rgba(74, 139, 255, .25);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        color: var(--brand-blue2);
    }

    .feature-list .feature-text-small strong {
        color: #fff;
        font-size: 15px;
        display: block;
        margin-bottom: 2px;
    }

    .feature-list .feature-text-small span {
        color: var(--text-2);
        font-size: 13px;
        line-height: 1.7;
    }

    /* responsive breakpoints */
    @media (max-width: 1024px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
        }

        .steps-flow {
            grid-template-columns: repeat(2, 1fr);
        }

        .step-card:not(:last-child):after {
            display: none;
        }

        .progress-panel-wrap {
            grid-template-columns: 1fr;
        }

        .progress-visual {
            grid-column: span 1;
        }

        .progress-explain {
            grid-column: span 1;
        }

        .state-board {
            grid-template-columns: 1fr;
        }

        .info-grid {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (max-width: 768px) {
        .nav-desktop {
            display: none;
        }

        .nav-mobile-trigger {
            display: block;
            position: relative;
        }

        .section-block {
            padding: 60px 0;
        }

        .visual-story {
            grid-template-columns: 1fr;
        }

        .visual-image img {
            height: 220px;
        }

        .cta-inline {
            flex-direction: column;
            align-items: flex-start;
            padding: 24px;
        }

        .category-switch-wrap {
            overflow-x: auto;
            padding-bottom: 12px;
        }

        .category-chips {
            flex-wrap: nowrap;
            width: max-content;
            padding: 2px;
        }

        .top-strip {
            font-size: 12px;
            height: 34px;
        }

        .strip-domain {
            display: none;
        }

        .footer-bottom {
            flex-direction: column;
            align-items: center;
            text-align: center;
        }
    }

    @media (max-width: 520px) {
        .container {
            padding-left: 16px;
            padding-right: 16px;
        }

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 26px;
        }

        .steps-flow {
            grid-template-columns: 1fr;
        }

        .info-grid {
            grid-template-columns: 1fr;
        }

        .page-hero {
            padding: 44px 0 40px;
        }

        .page-hero h1 {
            font-size: 30px;
        }

        .rail-item {
            grid-template-columns: 1fr;
            gap: 8px;
        }
    }

    @media (max-width: 420px) {
        .brand-cn {
            font-size: 18px;
        }

        .brand-sub {
            font-size: 10px;
        }

        .state-item {
            padding: 16px 14px;
        }
    }

/* roulang page: category4 */
:root {
            --bg-base: #0A1420;
            --bg-sub: #0F1D2E;
            --primary: #226BFF;
            --primary-light: #4A8BFF;
            --steel-1: #6B8BA6;
            --steel-2: #8DA6C0;
            --accent: #FF8A3C;
            --success: #2BD3A3;
            --text-main: #EAF2FC;
            --text-secondary: #8BA2BC;
            --text-muted: #5B738C;
            --glass-bg: rgba(16, 31, 50, 0.66);
            --border-default: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(255, 255, 255, 0.16);
            --radius-large: 18px;
            --radius-small: 12px;
            --section-space: 96px;
            --shadow-card: 0 24px 70px rgba(0, 0, 0, 0.35);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "HarmonyOS Sans SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-base);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        body::before {
            content: "";
            position: fixed;
            inset: 0;
            background: 
                radial-gradient(ellipse 60% 40% at 80% -10%, rgba(34, 107, 255, .2), transparent 60%),
                radial-gradient(ellipse 40% 30% at -10% 70%, rgba(255, 138, 60, .08), transparent 60%);
            pointer-events: none;
            z-index: 0;
        }
        a {
            color: var(--text-main);
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        .container {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            height: 112px;
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 20, 32, .86);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }
        .topbar {
            height: 40px;
            background: rgba(15, 29, 46, .9);
            border-bottom: 1px solid rgba(255, 255, 255, .04);
            display: flex;
            align-items: center;
            font-size: 13px;
            color: var(--text-secondary);
        }
        .topbar-inner {
            width: 100%;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .topbar-domain {
            letter-spacing: .2px;
            color: var(--text-muted);
            font-weight: 500;
        }
        .topbar-status {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--text-secondary);
        }
        .dot-live {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 12px rgba(43, 211, 163, .7);
            display: inline-block;
        }
        .header-flex {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 28px;
        }
        .brand-link {
            display: flex;
            flex-direction: column;
            justify-content: center;
            line-height: 1.3;
            padding: 8px 0;
        }
        .brand-cn {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: 1.2px;
            background: linear-gradient(135deg, #ffffff, #BFD5FF);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .brand-sub {
            font-size: 11px;
            color: var(--text-muted);
            letter-spacing: 2px;
            font-weight: 400;
        }
        .nav-desktop ul {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-desktop ul li a {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 10px 14px;
            border-radius: 999px;
            font-size: 15px;
            color: var(--text-secondary);
            font-weight: 500;
            transition: all .2s;
        }
        .nav-desktop ul li a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .04);
        }
        .nav-desktop .active {
            color: #fff !important;
            position: relative;
        }
        .nav-desktop .active::after {
            content: "";
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 18px;
            height: 2px;
            border-radius: 2px;
            background: var(--accent);
        }
        .nav-desktop .dropdown {
            position: relative;
        }
        .dropdown-panel {
            position: absolute;
            top: calc(100% + 6px);
            left: 50%;
            transform: translateX(-50%) translateY(-8px);
            background: rgba(15, 29, 46, .96);
            backdrop-filter: blur(14px);
            border: 1px solid var(--border-default);
            border-radius: 14px;
            padding: 10px;
            min-width: 260px;
            opacity: 0;
            visibility: hidden;
            transition: all .25s;
            box-shadow: 0 20px 60px rgba(0, 0, 0, .5);
        }
        .dropdown:hover .dropdown-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .dropdown-panel a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 14px;
            border-radius: 10px;
            font-size: 14px;
            color: var(--text-secondary);
            transition: all .2s;
        }
        .dropdown-panel a:hover {
            background: rgba(255, 255, 255, .04);
            color: #fff;
            padding-left: 18px;
        }
        .dropdown-panel a .info-arrow {
            color: var(--accent);
            opacity: .7;
        }
        .button-orange {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: none;
            cursor: pointer;
            font-weight: 600;
            background: var(--accent);
            color: #0A1420;
            border-radius: 10px;
            box-shadow: 0 0 18px rgba(255, 138, 60, .25);
            transition: all .2s;
        }
        .button-orange:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 32px rgba(255, 138, 60, .4);
            background: #FF9A56;
        }
        .button-orange:active {
            transform: scale(.98);
        }
        .button-lg {
            font-size: 16px;
            padding: 16px 32px;
        }
        .button-sm {
            font-size: 13px;
            padding: 8px 16px;
            border-radius: 999px;
        }
        .button-outline {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: 1px solid rgba(255, 255, 255, .2);
            color: var(--text-main);
            border-radius: 10px;
            background: rgba(255, 255, 255, .02);
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 500;
            transition: all .2s;
        }
        .button-outline:hover {
            background: rgba(255, 255, 255, .06);
            border-color: rgba(255, 255, 255, .3);
            box-shadow: 0 0 24px rgba(74, 139, 255, .12);
        }
        /* mobile nav */
        .nav-mobile-trigger {
            display: none;
        }
        @media (max-width: 989px) {
            .nav-desktop {
                display: none;
            }
            .site-header {
                height: auto;
            }
            .header-flex {
                height: auto;
                align-items: center;
                flex-wrap: wrap;
            }
            .nav-mobile-trigger {
                display: block;
            }
            .nav-mobile-trigger details {
                position: relative;
            }
            .nav-mobile-trigger summary {
                list-style: none;
                display: block;
                width: 44px;
                height: 44px;
                cursor: pointer;
                display: flex;
                align-items: center;
                justify-content: center;
                border-radius: 10px;
                border: 1px solid var(--border-default);
                background: rgba(255, 255, 255, .04);
            }
            .nav-mobile-trigger summary .bar {
                display: block;
                width: 20px;
                height: 2px;
                background: var(--text-main);
                position: relative;
                border-radius: 2px;
            }
            .nav-mobile-trigger summary .bar::before,
            .nav-mobile-trigger summary .bar::after {
                content: "";
                position: absolute;
                left: 0;
                width: 20px;
                height: 2px;
                background: var(--text-main);
                border-radius: 2px;
                transition: all .2s;
            }
            .nav-mobile-trigger summary .bar::before {
                top: -7px;
            }
            .nav-mobile-trigger summary .bar::after {
                top: 7px;
            }
            .nav-mobile-trigger details[open] summary .bar {
                background: transparent;
            }
            .nav-mobile-trigger details[open] summary .bar::before {
                top: 0;
                transform: rotate(45deg);
            }
            .nav-mobile-trigger details[open] summary .bar::after {
                top: 0;
                transform: rotate(-45deg);
            }
            .mobile-panel {
                position: absolute;
                right: 0;
                top: calc(100% + 8px);
                width: 280px;
                background: rgba(15, 29, 46, .97);
                backdrop-filter: blur(16px);
                border: 1px solid var(--border-default);
                border-radius: 16px;
                padding: 16px;
                box-shadow: 0 30px 60px rgba(0, 0, 0, .5);
            }
            .mobile-link {
                display: block;
                padding: 12px 14px;
                border-radius: 8px;
                font-size: 15px;
                color: var(--text-secondary);
                font-weight: 500;
            }
            .mobile-link.active {
                color: #fff;
                background: rgba(255, 255, 255, .04);
            }
            .mobile-link:hover {
                background: rgba(255, 255, 255, .03);
                color: #fff;
            }
            .panel-subheading {
                display: block;
                font-size: 12px;
                color: var(--text-muted);
                padding: 8px 14px 4px;
                letter-spacing: 1px;
            }
        }
        @media (max-width: 600px) {
            .brand-cn {
                font-size: 18px;
            }
            .brand-sub {
                font-size: 10px;
            }
        }
        /* =- header end =- */

        /* hero */
        .category-hero {
            min-height: 340px;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center 40%;
            position: relative;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, .05);
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(100deg, rgba(10, 20, 32, .96) 20%, rgba(10, 20, 32, .75) 60%, rgba(10, 20, 32, .58) 100%);
        }
        .category-hero::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, var(--bg-base) 0%, transparent 40%);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            width: 100%;
            padding-top: 56px;
            padding-bottom: 72px;
        }
        .hero-breadcrumb {
            margin-bottom: 24px;
            font-size: 14px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
        }
        .hero-breadcrumb a {
            color: var(--steel-2);
        }
        .hero-breadcrumb a:hover {
            color: #fff;
        }
        .hero-title {
            font-size: 40px;
            line-height: 1.2;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }
        .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 680px;
            line-height: 1.8;
            margin-bottom: 24px;
        }
        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 34px;
            padding: 0 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            font-size: 13px;
            color: var(--steel-2);
            backdrop-filter: blur(8px);
        }
        .hero-tag .tag-dot {
            width: 6px;
            height: 6px;
            background: var(--success);
            border-radius: 50%;
        }
        .reward-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            position: absolute;
            right: 30px;
            top: 50%;
            transform: translateY(-50%);
            z-index: 3;
            background: rgba(16, 31, 50, .72);
            backdrop-filter: blur(18px);
            border: 1px solid rgba(255, 138, 60, .3);
            padding: 18px 24px;
            border-radius: 16px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, .4);
            font-size: 13px;
            color: var(--steel-2);
            opacity: .9;
        }
        .reward-tag strong {
            color: var(--accent);
            font-size: 18px;
            font-weight: 800;
        }
        @media (max-width: 989px) {
            .reward-tag {
                display: none;
            }
        }
        @media (max-width: 600px) {
            .category-hero {
                min-height: auto;
            }
            .hero-inner {
                padding: 40px 0 48px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 15px;
            }
        }

        /* category switcher */
        .category-switch {
            margin-top: -40px;
            position: relative;
            z-index: 10;
        }
        .category-switch-track {
            display: flex;
            gap: 10px;
            background: rgba(15, 29, 46, .8);
            border: 1px solid var(--border-default);
            backdrop-filter: blur(14px);
            border-radius: 16px;
            padding: 12px;
            overflow-x: auto;
        }
        .category-chip {
            white-space: nowrap;
            padding: 12px 22px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(255, 255, 255, .03);
            border: 1px solid transparent;
            transition: all .2s;
            flex: 1;
            text-align: center;
        }
        .category-chip:hover {
            color: #fff;
            background: rgba(255, 255, 255, .07);
        }
        .category-chip.is-active {
            background: var(--accent);
            color: #0A1420;
            font-weight: 700;
            box-shadow: 0 0 18px rgba(255, 138, 60, .3);
        }
        @media (max-width: 899px) {
            .category-switch-track {
                flex-wrap: wrap;
            }
            .category-chip {
                flex: 0 1 calc(50% - 6px);
            }
        }
        @media (max-width: 520px) {
            .category-chip {
                flex: 0 0 100%;
            }
        }

        /* layout */
        .page-main {
            padding: 80px 0 100px;
            position: relative;
            z-index: 2;
        }
        .section {
            margin-bottom: 80px;
        }
        .section-head {
            margin-bottom: 32px;
        }
        .section-eyebrow {
            font-size: 13px;
            color: var(--accent);
            letter-spacing: 3px;
            font-weight: 600;
            text-transform: uppercase;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 8px;
        }
        .section-eyebrow::before {
            content: "";
            width: 20px;
            height: 1px;
            background: var(--accent);
            display: inline-block;
        }
        .section-title {
            font-size: 30px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 12px;
        }
        .section-subtitle {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.8;
            max-width: 780px;
        }

        /* two col */
        .two-column {
            display: flex;
            gap: 42px;
            align-items: flex-start;
        }
        .content-main-col {
            flex: 0 0 calc(68% - 42px);
            min-width: 0;
        }
        .content-side-col {
            flex: 0 0 32%;
            min-width: 0;
        }
        @media (max-width: 989px) {
            .two-column {
                flex-direction: column;
            }
            .content-main-col,
            .content-side-col {
                flex: 1 0 100%;
                width: 100%;
            }
        }

        /* cover detail */
        .cover-detail {
            border-radius: var(--radius-large);
            overflow: hidden;
            border: 1px solid var(--border-default);
            background: var(--glass-bg);
            box-shadow: var(--shadow-card);
            margin-bottom: 36px;
        }
        .cover-detail img {
            width: 100%;
            height: 320px;
            object-fit: cover;
            object-position: center;
        }
        .detail-body {
            padding: 32px;
        }
        .detail-title {
            font-size: 26px;
            font-weight: 700;
            margin-bottom: 16px;
            line-height: 1.4;
        }
        .detail-lead {
            color: var(--text-secondary);
            font-size: 16px;
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .lead-strong {
            color: var(--text-main);
            font-weight: 600;
        }
        @media (max-width: 600px) {
            .detail-body {
                padding: 20px;
            }
            .detail-title {
                font-size: 20px;
            }
            .cover-detail img {
                height: 200px;
            }
        }

        /* side panel */
        .side-panel {
            background: rgba(16, 31, 50, .6);
            border: 1px solid var(--border-default);
            border-radius: 16px;
            padding: 24px;
            margin-bottom: 20px;
            backdrop-filter: blur(10px);
        }
        .side-panel-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .side-panel-title .line {
            width: 3px;
            height: 16px;
            background: var(--accent);
            border-radius: 2px;
        }
        .side-reward-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .side-reward-item {
            padding: 12px 12px;
            background: rgba(255, 255, 255, .02);
            border: 1px solid transparent;
            border-radius: 10px;
            display: flex;
            gap: 12px;
            align-items: center;
            font-size: 14px;
            transition: all .2s;
        }
        .side-reward-item:hover {
            background: rgba(255, 255, 255, .04);
            border-color: var(--border-default);
        }
        .reward-icon {
            width: 34px;
            height: 34px;
            border-radius: 8px;
            background: rgba(34, 107, 255, .2);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #4A8BFF;
            flex-shrink: 0;
        }
        .reward-icon.is-hot {
            background: rgba(255, 138, 60, .18);
            color: var(--accent);
        }
        .reward-label {
            font-weight: 500;
            color: var(--text-main);
            font-size: 14px;
            margin-bottom: 2px;
        }
        .reward-desc {
            color: var(--text-muted);
            font-size: 12px;
            line-height: 1.5;
        }

        /* feature reward */
        .feature-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 40px;
        }
        .feature-item {
            display: flex;
            gap: 18px;
            background: rgba(16, 31, 50, .48);
            border: 1px solid var(--border-default);
            border-radius: 14px;
            padding: 24px;
            transition: all .3s;
            align-items: flex-start;
        }
        .feature-item:hover {
            border-color: rgba(255, 255, 255, .12);
            background: rgba(16, 31, 50, .7);
            transform: translateY(-2px);
        }
        .feature-num {
            width: 42px;
            height: 42px;
            flex-shrink: 0;
            border-radius: 10px;
            background: rgba(34, 107, 255, .15);
            border: 1px solid rgba(74, 139, 255, .25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            color: var(--primary-light);
        }
        .feature-content h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
            line-height: 1.4;
        }
        .feature-content p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }
        .feature-content p + p {
            margin-top: 8px;
        }

        /* badges */
        .tag-group {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }
        .tag-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            height: 34px;
            padding: 0 16px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .045);
            border: 1px solid rgba(255, 255, 255, .09);
            font-size: 13px;
            font-weight: 500;
            color: var(--steel-2);
            transition: all .2s;
        }
        .tag-pill:hover {
            border-color: rgba(255, 255, 255, .18);
            color: #fff;
            background: rgba(255, 255, 255, .07);
        }
        .tag-pill.tp-orange {
            border-color: rgba(255, 138, 60, .3);
            color: #FFB37B;
        }
        .tag-pill.tp-orange:hover {
            background: rgba(255, 138, 60, .12);
        }

        /* workflow */
        .step-flow {
            display: flex;
            gap: 20px;
            margin-top: 32px;
            position: relative;
        }
        .step-flow::before {
            content: "";
            position: absolute;
            top: 24px;
            left: 8%;
            right: 8%;
            height: 1px;
            background: linear-gradient(to right, rgba(255, 138, 60, .4), rgba(34, 107, 255, .4));
        }
        .step-item {
            flex: 1;
            text-align: center;
            position: relative;
            padding: 0 8px;
        }
        .step-circle {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--bg-sub);
            border: 1px solid rgba(255, 255, 255, .16);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            position: relative;
            z-index: 2;
            font-weight: 800;
            color: var(--accent);
            font-size: 18px;
            box-shadow: 0 0 0 8px rgba(10, 20, 32, 1);
        }
        .step-item h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        @media (max-width: 700px) {
            .step-flow {
                flex-direction: column;
                gap: 32px;
            }
            .step-flow::before {
                left: 24px;
                right: auto;
                top: 4%;
                bottom: 4%;
                width: 1px;
                height: auto;
                background: linear-gradient(to bottom, rgba(255, 138, 60, .4), rgba(34, 107, 255, .4));
            }
            .step-item {
                text-align: left;
                padding-left: 60px;
            }
            .step-circle {
                position: absolute;
                left: 0;
                top: 0;
                margin: 0;
            }
        }

        /* noticeboard */
        .notice-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .notice-row {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 16px 20px;
            border-radius: 12px;
            background: rgba(255, 255, 255, .02);
            border: 1px solid var(--border-default);
            font-size: 14px;
            transition: all .2s;
        }
        .notice-row:hover {
            background: rgba(255, 255, 255, .04);
            border-color: var(--border-hover);
        }
        .notice-state {
            flex-shrink: 0;
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 8px rgba(43, 211, 163, .55);
        }
        .notice-state.is-lock {
            background: var(--text-muted);
            box-shadow: none;
        }
        .notice-state.is-warning {
            background: var(--accent);
            box-shadow: 0 0 8px rgba(255, 138, 60, .5);
        }
        .notice-time {
            color: var(--text-muted);
            font-size: 13px;
            flex-shrink: 0;
            min-width: 80px;
        }
        .notice-title {
            color: var(--text-main);
            flex: 1;
            min-width: 0;
        }

        /* CTA */
        .cta-reward-panel {
            background: linear-gradient(145deg, rgba(15, 29, 46, .92), rgba(10, 20, 32, .98));
            border: 1px solid rgba(255, 138, 60, .28);
            border-radius: 20px;
            padding: 52px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-reward-panel::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: radial-gradient(circle at 85% 20%, rgba(255, 138, 60, .1), transparent 55%);
        }
        .cta-title {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 14px;
            position: relative;
            z-index: 2;
        }
        .cta-desc {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 640px;
            margin: 0 auto 28px;
            line-height: 1.8;
            position: relative;
            z-index: 2;
        }

        /* FAQ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            border: 1px solid var(--border-default);
            border-radius: 14px;
            background: rgba(16, 31, 50, .55);
            backdrop-filter: blur(10px);
            transition: background .2s;
        }
        .faq-item:hover {
            background: rgba(16, 31, 50, .75);
        }
        .faq-question {
            font-size: 16px;
            font-weight: 600;
            padding: 22px 24px;
            color: var(--text-main);
        }
        .faq-answer {
            padding: 0 24px 24px;
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
        }

        /* footer */
        .site-footer {
            background: rgba(5, 10, 20, .92);
            border-top: 1px solid rgba(255, 255, 255, .05);
            padding-top: 56px;
            position: relative;
            z-index: 2;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        .footer-brand-name {
            font-size: 22px;
            font-weight: 800;
            margin-bottom: 14px;
            letter-spacing: 1px;
            background: linear-gradient(135deg, #fff, #9FC1FF);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .footer-brand-desc {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            max-width: 300px;
        }
        .footer-block-title {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
            letter-spacing: .5px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 14px;
            transition: all .2s;
            display: inline-block;
        }
        .footer-links a:hover {
            color: var(--text-secondary);
            padding-left: 4px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .04);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--text-muted);
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-domain-text {
            font-weight: 600;
        }
        .backtop {
            border: 1px solid rgba(255, 255, 255, .12);
            padding: 8px 18px;
            border-radius: 999px;
            background: transparent;
            color: var(--text-secondary);
            cursor: pointer;
            font-size: 13px;
            transition: all .2s;
            font-family: inherit;
        }
        .backtop:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(255, 138, 60, .08);
        }
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }
        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                padding-bottom: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                padding: 20px 0;
            }
            .container {
                padding: 0 16px;
            }
        }
        @media (min-width: 1440px) {
            .container {
                max-width: 1240px;
            }
        }

        .text-gradient {
            background: linear-gradient(90deg, var(--accent), #FFB37B);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        .grid-cols {
            gap: 24px;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 24px;
            }
            .section-subtitle {
                font-size: 15px;
            }
        }
        .slim-info {
            margin-top: 24px;
            padding: 20px 24px;
            border-radius: 14px;
            background: rgba(255, 138, 60, .04);
            border: 1px solid rgba(255, 138, 60, .16);
            color: var(--text-secondary);
            display: flex;
            gap: 10px;
            font-size: 14px;
            line-height: 1.8;
            align-items: flex-start;
        }