/* roulang page: index */
:root {
      --brand: #ff6b6b;
      --brand-dark: #e74f55;
      --brand-soft: #fff0ef;
      --accent: #36c2a3;
      --accent-soft: #e9fbf6;
      --ink: #182033;
      --muted: #667085;
      --subtle: #8a94a6;
      --line: rgba(24, 32, 51, .10);
      --bg: #fffaf5;
      --surface: #ffffff;
      --surface-2: #fff6ed;
      --dark: #172033;
      --radius-xs: 10px;
      --radius-sm: 16px;
      --radius-md: 22px;
      --radius-lg: 32px;
      --shadow-sm: 0 8px 24px rgba(24, 32, 51, .08);
      --shadow-md: 0 16px 42px rgba(24, 32, 51, .12);
      --shadow-lg: 0 28px 76px rgba(24, 32, 51, .18);
      --container: 1180px;
      --ease: all .22s ease;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at 8% 2%, rgba(255, 107, 107, .12), transparent 32%),
        radial-gradient(circle at 92% 8%, rgba(54, 194, 163, .12), transparent 30%),
        linear-gradient(180deg, #fffaf5 0%, #ffffff 44%, #fffaf5 100%);
      line-height: 1.75;
      font-size: 16px;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--ease);
    }

    a:hover {
      color: var(--brand-dark);
    }

    img, svg {
      max-width: 100%;
      vertical-align: middle;
    }

    button, input, textarea, select {
      font: inherit;
    }

    button:focus-visible,
    a:focus-visible,
    input:focus-visible,
    textarea:focus-visible,
    select:focus-visible {
      outline: 3px solid rgba(255, 107, 107, .28);
      outline-offset: 3px;
      border-radius: 12px;
    }

    .container-custom {
      width: min(100% - 32px, var(--container));
      margin-inline: auto;
    }

    .text-muted-custom {
      color: var(--muted);
    }

    .section-pad {
      padding: 84px 0;
    }

    .section-pad-sm {
      padding: 58px 0;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      color: var(--brand-dark);
      background: var(--brand-soft);
      border: 1px solid rgba(255, 107, 107, .18);
      font-weight: 700;
      font-size: 14px;
      letter-spacing: .02em;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: var(--brand);
      box-shadow: 0 0 0 5px rgba(255, 107, 107, .14);
    }

    .section-title {
      margin: 16px 0 12px;
      font-size: clamp(28px, 4vw, 44px);
      line-height: 1.18;
      letter-spacing: -.04em;
      font-weight: 900;
      color: var(--ink);
    }

    .section-desc {
      max-width: 760px;
      color: var(--muted);
      font-size: 17px;
      margin: 0;
    }

    .btn-brand,
    .btn-ghost,
    .btn-dark-soft {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 12px 20px;
      border-radius: 999px;
      font-weight: 800;
      border: 1px solid transparent;
      transition: var(--ease);
      box-shadow: none;
      cursor: pointer;
      white-space: nowrap;
    }

    .btn-brand {
      color: #fff;
      background: linear-gradient(135deg, var(--brand) 0%, #ff8a5b 100%);
      box-shadow: 0 14px 30px rgba(255, 107, 107, .28);
    }

    .btn-brand:hover,
    .btn-brand:active {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 18px 42px rgba(255, 107, 107, .34);
    }

    .btn-ghost {
      color: var(--ink);
      background: rgba(255, 255, 255, .88);
      border-color: rgba(24, 32, 51, .12);
    }

    .btn-ghost:hover {
      color: var(--brand-dark);
      background: #fff;
      border-color: rgba(255, 107, 107, .25);
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
    }

    .btn-dark-soft {
      color: #fff;
      background: rgba(23, 32, 51, .92);
      border-color: rgba(255, 255, 255, .14);
    }

    .btn-dark-soft:hover {
      color: #fff;
      background: var(--ink);
      transform: translateY(-2px);
    }

    .badge-soft {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(54, 194, 163, .12);
      color: #18886f;
      font-size: 13px;
      font-weight: 800;
      border: 1px solid rgba(54, 194, 163, .18);
    }

    .magazine-header {
      position: sticky;
      top: 0;
      z-index: 1020;
      background: rgba(255, 250, 245, .86);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid var(--line);
    }

    .masthead {
      display: grid;
      grid-template-columns: 1fr auto;
      align-items: end;
      gap: 18px;
      padding: 18px 0 14px;
      border-bottom: 1px solid rgba(24, 32, 51, .08);
    }

    .brand-mark {
      display: inline-flex;
      flex-direction: column;
      gap: 2px;
      color: var(--ink);
    }

    .brand-mark strong {
      font-family: Georgia, "Times New Roman", "Songti SC", serif;
      font-size: clamp(26px, 4vw, 48px);
      letter-spacing: -.06em;
      line-height: 1;
      font-weight: 900;
    }

    .brand-mark span {
      color: var(--muted);
      font-size: 13px;
      letter-spacing: .18em;
      font-weight: 700;
    }

    .header-note {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--muted);
      font-size: 14px;
      white-space: nowrap;
    }

    .header-note .line {
      width: 56px;
      height: 1px;
      background: var(--line);
    }

    .channel-nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 12px 0;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      min-height: 40px;
      padding: 9px 16px;
      border-radius: 999px;
      color: var(--ink);
      font-weight: 800;
      border: 1px solid transparent;
    }

    .nav-links a:hover {
      background: #fff;
      border-color: var(--line);
      box-shadow: var(--shadow-sm);
      color: var(--brand-dark);
    }

    .nav-links a.active {
      background: var(--ink);
      color: #fff;
      box-shadow: 0 10px 24px rgba(24, 32, 51, .16);
    }

    .nav-search {
      display: flex;
      align-items: center;
      gap: 8px;
      min-width: 320px;
      padding: 6px 8px 6px 14px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .78);
      border-radius: 999px;
    }

    .nav-search input {
      width: 100%;
      border: 0;
      outline: 0;
      background: transparent;
      color: var(--ink);
      font-size: 14px;
    }

    .nav-search button {
      border: 0;
      width: 34px;
      height: 34px;
      border-radius: 999px;
      color: #fff;
      background: var(--brand);
      transition: var(--ease);
    }

    .nav-search button:hover {
      background: var(--brand-dark);
      transform: scale(1.04);
    }

    .navbar-toggler-custom {
      display: none;
      border: 1px solid var(--line);
      background: #fff;
      border-radius: 14px;
      width: 46px;
      height: 42px;
      align-items: center;
      justify-content: center;
      color: var(--ink);
    }

    .hero-kv {
      position: relative;
      min-height: 620px;
      display: flex;
      align-items: stretch;
      overflow: hidden;
      color: #fff;
      background:
        linear-gradient(115deg, rgba(23, 32, 51, .92), rgba(23, 32, 51, .62)),
        radial-gradient(circle at 18% 20%, rgba(255, 107, 107, .65), transparent 32%),
        radial-gradient(circle at 78% 18%, rgba(54, 194, 163, .58), transparent 34%),
        linear-gradient(135deg, #172033 0%, #2b3958 48%, #ff8a5b 120%);
    }

    .hero-kv::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(255, 255, 255, .08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .08) 1px, transparent 1px);
      background-size: 54px 54px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.9), rgba(0,0,0,.18));
      pointer-events: none;
    }

    .hero-kv::after {
      content: "";
      position: absolute;
      right: -160px;
      bottom: -220px;
      width: 620px;
      height: 620px;
      border-radius: 50%;
      background: rgba(255, 255, 255, .09);
      box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .18);
      pointer-events: none;
    }

    .hero-inner {
      position: relative;
      z-index: 2;
      width: 100%;
      display: grid;
      align-content: center;
      padding: 78px 0 118px;
    }

    .hero-content {
      max-width: 950px;
    }

    .hero-labels {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 22px;
    }

    .hero-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .14);
      border: 1px solid rgba(255, 255, 255, .20);
      color: rgba(255, 255, 255, .92);
      font-size: 14px;
      font-weight: 800;
      backdrop-filter: blur(10px);
    }

    .hero-title {
      max-width: 920px;
      margin: 0;
      font-size: clamp(38px, 6vw, 72px);
      line-height: 1.04;
      letter-spacing: -.065em;
      font-weight: 950;
      text-wrap: balance;
    }

    .hero-intro {
      max-width: 820px;
      margin: 24px 0 0;
      color: rgba(255, 255, 255, .84);
      font-size: clamp(17px, 2vw, 21px);
      line-height: 1.85;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 14px;
      margin-top: 34px;
    }

    .hero-stats {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      margin-top: 42px;
      max-width: 900px;
    }

    .hero-stat {
      padding: 18px;
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .12);
      border: 1px solid rgba(255, 255, 255, .18);
      backdrop-filter: blur(16px);
      transition: var(--ease);
    }

    .hero-stat:hover {
      transform: translateY(-3px);
      background: rgba(255, 255, 255, .16);
    }

    .hero-stat b {
      display: block;
      font-size: clamp(24px, 3vw, 36px);
      line-height: 1;
      letter-spacing: -.04em;
    }

    .hero-stat span {
      display: block;
      margin-top: 8px;
      color: rgba(255, 255, 255, .76);
      font-size: 14px;
      font-weight: 700;
    }

    .countdown-strip {
      position: absolute;
      left: 50%;
      bottom: 28px;
      z-index: 3;
      transform: translateX(-50%);
      width: min(calc(100% - 32px), var(--container));
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 18px;
      padding: 14px 18px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .94);
      color: var(--ink);
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255, 255, 255, .55);
    }

    .countdown-strip .strip-title {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 900;
      white-space: nowrap;
    }

    .pulse-dot {
      width: 10px;
      height: 10px;
      border-radius: 999px;
      background: var(--accent);
      box-shadow: 0 0 0 8px rgba(54, 194, 163, .14);
    }

    .countdown-time {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-variant-numeric: tabular-nums;
      color: var(--brand-dark);
      font-weight: 950;
      letter-spacing: -.02em;
    }

    .time-box {
      min-width: 48px;
      padding: 5px 8px;
      border-radius: 12px;
      background: var(--brand-soft);
      text-align: center;
    }

    .strip-note {
      color: var(--muted);
      font-size: 14px;
      white-space: nowrap;
    }

    .split-panel {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      overflow: hidden;
    }

    .split-panel .intro-side {
      padding: 34px;
      background:
        radial-gradient(circle at 22% 18%, rgba(255, 107, 107, .12), transparent 34%),
        linear-gradient(180deg, #fff7ee, #ffffff);
      height: 100%;
    }

    .invite-card {
      height: 100%;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, .86);
      transition: var(--ease);
    }

    .invite-card:hover {
      transform: translateY(-5px);
      box-shadow: var(--shadow-md);
      border-color: rgba(255, 107, 107, .22);
    }

    .icon-bubble {
      display: inline-grid;
      place-items: center;
      width: 46px;
      height: 46px;
      border-radius: 15px;
      color: #fff;
      background: linear-gradient(135deg, var(--brand), #ff9d69);
      box-shadow: 0 12px 22px rgba(255, 107, 107, .22);
      font-weight: 950;
      margin-bottom: 16px;
    }

    .invite-card h3,
    .progress-card h3,
    .rank-card h3,
    .case-card h3 {
      margin: 0 0 10px;
      font-size: 20px;
      line-height: 1.32;
      font-weight: 900;
      letter-spacing: -.02em;
    }

    .invite-card p,
    .progress-card p,
    .rank-card p,
    .case-card p {
      color: var(--muted);
      margin: 0;
      font-size: 15px;
    }

    .mini-list {
      display: grid;
      gap: 12px;
      margin: 24px 0 0;
      padding: 0;
      list-style: none;
    }

    .mini-list li {
      display: flex;
      gap: 12px;
      align-items: flex-start;
      color: var(--muted);
    }

    .mini-list li::before {
      content: "✓";
      flex: 0 0 24px;
      width: 24px;
      height: 24px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--accent-soft);
      color: #15856c;
      font-size: 13px;
      font-weight: 950;
      margin-top: 2px;
    }

    .progress-wrap {
      background: linear-gradient(180deg, #ffffff 0%, #fff7f1 100%);
      border-radius: var(--radius-lg);
      border: 1px solid var(--line);
      padding: 28px;
      box-shadow: var(--shadow-sm);
    }

    .progress-card {
      padding: 24px;
      background: #fff;
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      height: 100%;
      transition: var(--ease);
    }

    .progress-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-sm);
    }

    .progress {
      height: 12px;
      border-radius: 999px;
      background: rgba(24, 32, 51, .08);
      overflow: visible;
    }

    .progress-bar {
      border-radius: 999px;
      background: linear-gradient(90deg, var(--brand), var(--accent));
      box-shadow: 0 8px 16px rgba(54, 194, 163, .20);
    }

    .check-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 13px 0;
      border-bottom: 1px dashed rgba(24, 32, 51, .12);
      color: var(--muted);
      font-size: 15px;
    }

    .check-row:last-child {
      border-bottom: 0;
    }

    .check-row b {
      color: var(--ink);
    }

    .status-pill {
      flex: 0 0 auto;
      padding: 4px 10px;
      border-radius: 999px;
      background: var(--accent-soft);
      color: #15856c;
      font-size: 12px;
      font-weight: 900;
    }

    .ranking-section {
      background:
        linear-gradient(180deg, #172033, #222d47);
      color: #fff;
      position: relative;
      overflow: hidden;
    }

    .ranking-section::before {
      content: "";
      position: absolute;
      inset: -120px -120px auto auto;
      width: 360px;
      height: 360px;
      border-radius: 999px;
      background: rgba(255, 107, 107, .22);
      filter: blur(10px);
    }

    .ranking-section .section-title,
    .ranking-section .section-desc {
      color: #fff;
    }

    .ranking-section .section-desc {
      color: rgba(255, 255, 255, .72);
    }

    .rank-card {
      position: relative;
      height: 100%;
      padding: 22px;
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .10);
      border: 1px solid rgba(255, 255, 255, .14);
      backdrop-filter: blur(14px);
      transition: var(--ease);
    }

    .rank-card:hover {
      transform: translateY(-5px);
      background: rgba(255, 255, 255, .14);
      border-color: rgba(255, 255, 255, .25);
    }

    .rank-card p {
      color: rgba(255, 255, 255, .72);
    }

    .rank-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 13px;
      background: rgba(255, 255, 255, .16);
      color: #fff;
      font-weight: 950;
      margin-bottom: 16px;
    }

    .score-line {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-top: 18px;
      color: rgba(255, 255, 255, .70);
      font-size: 14px;
    }

    .score-line b {
      color: #fff;
      font-size: 22px;
      letter-spacing: -.04em;
    }

    .proof-board {
      margin-top: 34px;
      padding: 24px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .08);
      border: 1px solid rgba(255, 255, 255, .13);
    }

    .compare-box {
      padding: 18px;
      border-radius: var(--radius-md);
      background: rgba(255, 255, 255, .10);
      border: 1px solid rgba(255, 255, 255, .14);
      height: 100%;
    }

    .compare-box h4 {
      font-size: 17px;
      font-weight: 900;
      margin: 0 0 12px;
    }

    .compare-box ul {
      padding: 0;
      margin: 0;
      list-style: none;
      display: grid;
      gap: 10px;
      color: rgba(255, 255, 255, .74);
      font-size: 14px;
    }

    .case-card {
      height: 100%;
      padding: 20px;
      border-radius: var(--radius-md);
      background: #fff;
      color: var(--ink);
      border: 1px solid var(--line);
    }

    .case-card p {
      color: var(--muted);
    }

    .news-card {
      padding: 30px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      height: 100%;
    }

    .news-list {
      display: grid;
      gap: 0;
      padding: 0;
      margin: 0;
      list-style: none;
    }

    .news-list li {
      border-bottom: 1px solid var(--line);
    }

    .news-list li:last-child {
      border-bottom: 0;
    }

    .news-link {
      display: grid;
      grid-template-columns: 104px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 18px 0;
    }

    .news-date {
      color: var(--subtle);
      font-size: 14px;
      font-weight: 800;
    }

    .news-title {
      display: block;
      color: var(--ink);
      font-size: 18px;
      font-weight: 900;
      line-height: 1.42;
      transition: var(--ease);
    }

    .news-summary {
      display: block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 14px;
    }

    .news-link:hover .news-title {
      color: var(--brand-dark);
    }

    .arrow {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      background: var(--brand-soft);
      color: var(--brand-dark);
      transition: var(--ease);
    }

    .news-link:hover .arrow {
      transform: translateX(4px);
      background: var(--brand);
      color: #fff;
    }

    .topic-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin-top: 18px;
    }

    .topic-item {
      padding: 15px;
      border-radius: var(--radius-sm);
      background: linear-gradient(180deg, #fff7f2, #ffffff);
      border: 1px solid var(--line);
      transition: var(--ease);
    }

    .topic-item:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-sm);
      border-color: rgba(255, 107, 107, .20);
    }

    .topic-item b {
      display: block;
      margin-bottom: 4px;
      font-size: 15px;
    }

    .topic-item span {
      color: var(--muted);
      font-size: 13px;
    }

    .faq-wrap {
      max-width: 960px;
      margin-inline: auto;
    }

    .accordion {
      --bs-accordion-border-color: var(--line);
      --bs-accordion-border-radius: var(--radius-md);
      --bs-accordion-inner-border-radius: var(--radius-md);
      --bs-accordion-btn-focus-box-shadow: 0 0 0 .25rem rgba(255, 107, 107, .16);
      display: grid;
      gap: 14px;
    }

    .accordion-item {
      border: 1px solid var(--line) !important;
      border-radius: var(--radius-md) !important;
      overflow: hidden;
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .accordion-button {
      padding: 20px 22px;
      color: var(--ink);
      font-weight: 900;
      font-size: 17px;
      background: #fff;
    }

    .accordion-button:not(.collapsed) {
      color: var(--brand-dark);
      background: var(--brand-soft);
      box-shadow: inset 0 -1px 0 var(--line);
    }

    .accordion-body {
      color: var(--muted);
      padding: 20px 22px 24px;
    }

    .claim-section {
      padding: 92px 0;
      background:
        radial-gradient(circle at 12% 20%, rgba(255, 255, 255, .24), transparent 24%),
        radial-gradient(circle at 88% 12%, rgba(54, 194, 163, .20), transparent 30%),
        linear-gradient(135deg, #ff6b6b 0%, #ff9d66 52%, #36c2a3 130%);
      color: #fff;
    }

    .claim-panel {
      display: grid;
      grid-template-columns: 1fr 440px;
      gap: 28px;
      align-items: center;
    }

    .claim-section .section-title,
    .claim-section .section-desc {
      color: #fff;
    }

    .claim-section .section-desc {
      color: rgba(255, 255, 255, .86);
    }

    .claim-points {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 24px;
    }

    .claim-points span {
      display: inline-flex;
      align-items: center;
      padding: 8px 12px;
      border-radius: 999px;
      color: #fff;
      background: rgba(255, 255, 255, .16);
      border: 1px solid rgba(255, 255, 255, .22);
      font-weight: 800;
      font-size: 14px;
    }

    .claim-form {
      padding: 26px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .96);
      color: var(--ink);
      box-shadow: var(--shadow-lg);
      border: 1px solid rgba(255, 255, 255, .62);
    }

    .form-label {
      color: var(--ink);
      font-weight: 900;
      margin-bottom: 8px;
    }

    .form-control,
    .form-select {
      min-height: 48px;
      border-radius: 15px;
      border: 1px solid rgba(24, 32, 51, .14);
      color: var(--ink);
      background-color: #fff;
      transition: var(--ease);
    }

    .form-control:focus,
    .form-select:focus {
      border-color: rgba(255, 107, 107, .48);
      box-shadow: 0 0 0 .25rem rgba(255, 107, 107, .14);
    }

    .form-hint {
      margin-top: 12px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .site-footer {
      background: #121a2a;
      color: rgba(255, 255, 255, .74);
      padding: 54px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 28px;
      align-items: start;
    }

    .footer-name {
      color: #fff;
      font-family: Georgia, "Times New Roman", "Songti SC", serif;
      font-size: clamp(24px, 3vw, 34px);
      line-height: 1.15;
      font-weight: 900;
      letter-spacing: -.04em;
      margin-bottom: 14px;
    }

    .footer-desc {
      max-width: 650px;
      margin: 0;
      color: rgba(255, 255, 255, .68);
    }

    .footer-links {
      display: flex;
      justify-content: flex-end;
      flex-wrap: wrap;
      gap: 10px;
    }

    .footer-links a {
      padding: 8px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, .06);
      color: rgba(255, 255, 255, .78);
      border: 1px solid rgba(255, 255, 255, .08);
      font-weight: 800;
      font-size: 14px;
    }

    .footer-links a:hover {
      color: #fff;
      background: rgba(255, 255, 255, .12);
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      margin-top: 34px;
      padding-top: 24px;
      border-top: 1px solid rgba(255, 255, 255, .10);
      color: rgba(255, 255, 255, .52);
      font-size: 14px;
    }

    .floating-cta {
      position: fixed;
      right: 22px;
      bottom: 22px;
      z-index: 1010;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 12px 16px;
      border-radius: 999px;
      color: #fff;
      background: rgba(23, 32, 51, .94);
      box-shadow: var(--shadow-md);
      border: 1px solid rgba(255, 255, 255, .14);
      font-weight: 900;
      transition: var(--ease);
    }

    .floating-cta:hover {
      color: #fff;
      transform: translateY(-3px);
      background: #111827;
    }

    @media (max-width: 1024px) {
      .section-pad {
        padding: 70px 0;
      }

      .hero-kv {
        min-height: 640px;
      }

      .countdown-strip {
        grid-template-columns: 1fr;
        justify-items: center;
        border-radius: var(--radius-md);
        text-align: center;
      }

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

      .claim-form {
        max-width: 620px;
      }

      .nav-search {
        min-width: 260px;
      }
    }

    @media (max-width: 768px) {
      body {
        font-size: 15px;
      }

      .masthead {
        grid-template-columns: 1fr auto;
        align-items: center;
      }

      .header-note {
        display: none;
      }

      .navbar-toggler-custom {
        display: inline-flex;
      }

      .channel-nav {
        display: block;
        padding: 10px 0 14px;
      }

      .channel-collapse {
        display: none;
        padding-top: 12px;
      }

      .channel-collapse.show {
        display: grid;
        gap: 12px;
      }

      .nav-links {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 4px;
      }

      .nav-links a {
        min-height: 38px;
        padding: 8px 14px;
      }

      .nav-search {
        width: 100%;
        min-width: 0;
      }

      .hero-kv {
        min-height: auto;
      }

      .hero-inner {
        padding: 54px 0 176px;
      }

      .hero-stats {
        grid-template-columns: 1fr;
      }

      .hero-actions .btn-brand,
      .hero-actions .btn-ghost {
        width: 100%;
      }

      .countdown-strip {
        bottom: 18px;
        gap: 12px;
      }

      .countdown-time {
        flex-wrap: wrap;
      }

      .news-link {
        grid-template-columns: 1fr auto;
        gap: 10px;
      }

      .news-date {
        grid-column: 1 / -1;
      }

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

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

      .footer-links {
        justify-content: flex-start;
      }

      .floating-cta {
        left: 16px;
        right: 16px;
        justify-content: center;
      }
    }

    @media (max-width: 520px) {
      .container-custom {
        width: min(100% - 24px, var(--container));
      }

      .brand-mark strong {
        font-size: 25px;
      }

      .brand-mark span {
        font-size: 11px;
        letter-spacing: .12em;
      }

      .section-title {
        font-size: 28px;
      }

      .section-desc {
        font-size: 15px;
      }

      .split-panel .intro-side,
      .progress-wrap,
      .news-card,
      .claim-form {
        padding: 22px;
      }

      .hero-title {
        font-size: 36px;
      }

      .hero-intro {
        font-size: 16px;
      }

      .time-box {
        min-width: 42px;
      }
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}