/* roulang page: index */
:root {
      --bg: #f6f3eb;
      --bg-soft: #fffaf0;
      --surface: #ffffff;
      --surface-2: #f0fbf8;
      --ink: #16201d;
      --muted: #66736f;
      --weak: #89948f;
      --primary: #0f766e;
      --primary-2: #14b8a6;
      --primary-dark: #0b5752;
      --accent: #f97316;
      --accent-2: #facc15;
      --danger: #e11d48;
      --line: rgba(22, 32, 29, .12);
      --line-strong: rgba(15, 118, 110, .22);
      --shadow: 0 22px 70px rgba(21, 38, 35, .12);
      --shadow-soft: 0 12px 34px rgba(21, 38, 35, .08);
      --radius-xl: 34px;
      --radius-lg: 24px;
      --radius-md: 18px;
      --radius-sm: 12px;
      --container: 1180px;
      --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      text-size-adjust: 100%;
    }

    body {
      margin: 0;
      min-height: 100vh;
      font-family: var(--font);
      color: var(--ink);
      line-height: 1.65;
      background:
        radial-gradient(circle at 12% 8%, rgba(20, 184, 166, .18), transparent 26%),
        radial-gradient(circle at 88% 6%, rgba(249, 115, 22, .16), transparent 28%),
        linear-gradient(180deg, #f8f4e9 0%, #f7f7f1 42%, #eef8f5 100%);
      overflow-x: hidden;
    }

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

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

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

    button {
      cursor: pointer;
      border: 0;
    }

    ::selection {
      color: #fff;
      background: var(--primary);
    }

    :focus-visible {
      outline: 3px solid rgba(20, 184, 166, .35);
      outline-offset: 3px;
      border-radius: 12px;
    }

    .container {
      width: min(100% - 40px, var(--container));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      padding: 18px 0 12px;
      backdrop-filter: blur(18px);
      background: linear-gradient(180deg, rgba(246, 243, 235, .94), rgba(246, 243, 235, .72));
      border-bottom: 1px solid rgba(255, 255, 255, .58);
    }

    .nav-panel {
      display: grid;
      grid-template-columns: 240px 1fr auto;
      gap: 14px;
      align-items: center;
      padding: 12px;
      border: 1px solid rgba(15, 118, 110, .12);
      border-radius: 26px;
      background: rgba(255, 255, 255, .82);
      box-shadow: var(--shadow-soft);
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      padding: 8px 10px;
      border-radius: 20px;
      transition: transform .22s ease, background .22s ease;
    }

    .brand:hover {
      transform: translateY(-1px);
      background: rgba(15, 118, 110, .06);
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border-radius: 15px;
      color: #fff;
      font-weight: 900;
      letter-spacing: -.04em;
      background:
        linear-gradient(135deg, rgba(255,255,255,.18), rgba(255,255,255,0)),
        linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 12px 28px rgba(15, 118, 110, .25);
    }

    .brand-text {
      min-width: 0;
    }

    .brand-name {
      display: block;
      font-size: 17px;
      font-weight: 900;
      letter-spacing: -.02em;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }

    .brand-note {
      display: block;
      margin-top: -2px;
      color: var(--muted);
      font-size: 12px;
    }

    .nav-card-row {
      display: flex;
      gap: 10px;
      align-items: center;
      min-width: 0;
      overflow-x: auto;
      scrollbar-width: none;
      padding: 2px;
    }

    .nav-card-row::-webkit-scrollbar {
      display: none;
    }

    .nav-entry {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      white-space: nowrap;
      padding: 11px 14px;
      border: 1px solid var(--line);
      border-radius: 18px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 800;
      background: #fff;
      transition: transform .22s ease, box-shadow .22s ease, color .22s ease, border-color .22s ease, background .22s ease;
    }

    .nav-entry .dot {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--weak);
      box-shadow: 0 0 0 4px rgba(137, 148, 143, .12);
    }

    .nav-entry:hover,
    .nav-entry.active {
      color: var(--primary-dark);
      border-color: rgba(15, 118, 110, .28);
      background: var(--surface-2);
      box-shadow: 0 12px 24px rgba(15, 118, 110, .10);
      transform: translateY(-1px);
    }

    .nav-entry.active .dot,
    .nav-entry:hover .dot {
      background: var(--primary-2);
      box-shadow: 0 0 0 4px rgba(20, 184, 166, .16);
    }

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

    .quick-search {
      width: 210px;
      position: relative;
    }

    .quick-search input {
      width: 100%;
      height: 44px;
      padding: 0 42px 0 15px;
      border: 1px solid var(--line);
      border-radius: 16px;
      color: var(--ink);
      background: #fffaf7;
      transition: border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }

    .quick-search input::placeholder {
      color: #9aa29f;
    }

    .quick-search input:focus {
      border-color: rgba(15, 118, 110, .42);
      box-shadow: 0 0 0 5px rgba(20, 184, 166, .12);
      background: #fff;
      outline: 0;
    }

    .search-icon {
      position: absolute;
      right: 14px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--primary);
      font-weight: 900;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 16px;
      border: 1px solid transparent;
      font-weight: 900;
      line-height: 1;
      transition: transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .btn:active {
      transform: translateY(0);
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 16px 34px rgba(15, 118, 110, .25);
    }

    .btn-primary:hover {
      box-shadow: 0 20px 44px rgba(15, 118, 110, .32);
    }

    .btn-ghost {
      color: var(--primary-dark);
      background: rgba(255, 255, 255, .78);
      border-color: rgba(15, 118, 110, .18);
    }

    .btn-ghost:hover {
      background: #fff;
      border-color: rgba(15, 118, 110, .36);
      box-shadow: var(--shadow-soft);
    }

    .btn-accent {
      color: #3b2207;
      background: linear-gradient(135deg, #facc15, #fb923c);
      box-shadow: 0 18px 36px rgba(249, 115, 22, .24);
    }

    .menu-toggle {
      display: none;
      width: 46px;
      height: 46px;
      border-radius: 16px;
      color: var(--primary-dark);
      background: #fff;
      border: 1px solid var(--line);
    }

    .hero {
      padding: 54px 0 34px;
    }

    .hero-stage {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius-xl);
      background:
        linear-gradient(135deg, rgba(15, 118, 110, .96), rgba(19, 78, 74, .98) 50%, rgba(50, 38, 24, .95)),
        radial-gradient(circle at 85% 10%, rgba(250, 204, 21, .3), transparent 36%);
      color: #fff;
      box-shadow: var(--shadow);
      min-height: 540px;
    }

    .hero-stage::before,
    .hero-stage::after {
      content: "";
      position: absolute;
      pointer-events: none;
      border-radius: 999px;
    }

    .hero-stage::before {
      width: 420px;
      height: 420px;
      right: -140px;
      top: -160px;
      background: rgba(250, 204, 21, .16);
      filter: blur(2px);
    }

    .hero-stage::after {
      width: 300px;
      height: 300px;
      left: 38%;
      bottom: -190px;
      background: rgba(20, 184, 166, .28);
    }

    .coupon-wall {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.03fr) minmax(360px, .8fr);
      gap: 28px;
      padding: 34px;
      align-items: stretch;
    }

    .hero-copy {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      min-height: 470px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      width: fit-content;
      padding: 8px 12px;
      border: 1px solid rgba(255, 255, 255, .18);
      border-radius: 999px;
      font-size: 13px;
      font-weight: 900;
      color: #dcfffa;
      background: rgba(255, 255, 255, .09);
      backdrop-filter: blur(8px);
    }

    .pulse {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--accent-2);
      box-shadow: 0 0 0 0 rgba(250, 204, 21, .55);
      animation: pulse 1.8s infinite;
    }

    @keyframes pulse {
      70% { box-shadow: 0 0 0 10px rgba(250, 204, 21, 0); }
      100% { box-shadow: 0 0 0 0 rgba(250, 204, 21, 0); }
    }

    .hero h1 {
      max-width: 760px;
      margin: 22px 0 14px;
      font-size: clamp(38px, 6vw, 72px);
      line-height: 1.05;
      letter-spacing: -.055em;
    }

    .hero-intro {
      max-width: 760px;
      margin: 0;
      color: rgba(255, 255, 255, .82);
      font-size: 18px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 32px;
    }

    .metric-mini {
      padding: 16px;
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 20px;
      background: rgba(255, 255, 255, .08);
      backdrop-filter: blur(10px);
    }

    .metric-mini strong {
      display: block;
      font-size: 26px;
      line-height: 1;
      letter-spacing: -.03em;
    }

    .metric-mini span {
      display: block;
      margin-top: 8px;
      color: rgba(255, 255, 255, .68);
      font-size: 13px;
    }

    .coupon-board {
      display: grid;
      grid-template-rows: 1fr auto;
      gap: 16px;
      min-height: 470px;
    }

    .main-coupon {
      position: relative;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      overflow: hidden;
      padding: 28px;
      border-radius: 30px;
      color: #3a2306;
      background:
        radial-gradient(circle at 0 50%, transparent 20px, rgba(255,255,255,.98) 21px),
        radial-gradient(circle at 100% 50%, transparent 20px, rgba(255,255,255,.98) 21px),
        linear-gradient(135deg, #fff8d7, #ffffff 38%, #fff1bd);
      box-shadow: 0 30px 70px rgba(0,0,0,.16);
    }

    .main-coupon::before {
      content: "";
      position: absolute;
      left: 26px;
      right: 26px;
      top: 50%;
      border-top: 2px dashed rgba(122, 81, 13, .22);
    }

    .coupon-top,
    .coupon-bottom {
      position: relative;
      z-index: 1;
    }

    .coupon-label {
      display: inline-flex;
      padding: 7px 10px;
      border-radius: 999px;
      color: #7a3e08;
      background: rgba(250, 204, 21, .36);
      font-size: 12px;
      font-weight: 900;
    }

    .coupon-title {
      margin: 18px 0 12px;
      font-size: clamp(30px, 4vw, 48px);
      line-height: 1.02;
      letter-spacing: -.05em;
      font-weight: 950;
    }

    .coupon-desc {
      color: #6e5532;
      margin: 0;
      font-size: 15px;
    }

    .coupon-code {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      align-items: end;
      padding-top: 30px;
    }

    .code-box {
      min-width: 0;
    }

    .code-box span {
      display: block;
      color: #85633a;
      font-size: 12px;
      font-weight: 800;
    }

    .code-box strong {
      display: block;
      margin-top: 4px;
      font-size: 24px;
      letter-spacing: .04em;
    }

    .coupon-chips {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
    }

    .coupon-chip {
      min-height: 78px;
      padding: 13px;
      border-radius: 20px;
      color: rgba(255,255,255,.88);
      background: rgba(255,255,255,.10);
      border: 1px solid rgba(255,255,255,.16);
    }

    .coupon-chip strong {
      display: block;
      color: #fff;
      font-size: 15px;
      margin-bottom: 3px;
    }

    .coupon-chip span {
      font-size: 12px;
      color: rgba(255,255,255,.64);
    }

    main {
      display: block;
    }

    .section {
      padding: 54px 0;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 28px;
      margin-bottom: 24px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 10px;
      color: var(--primary);
      font-size: 13px;
      font-weight: 950;
      letter-spacing: .04em;
    }

    .section-kicker::before {
      content: "";
      width: 22px;
      height: 3px;
      border-radius: 99px;
      background: var(--accent);
    }

    .section-title {
      margin: 0;
      font-size: clamp(28px, 3.4vw, 44px);
      line-height: 1.15;
      letter-spacing: -.045em;
    }

    .section-desc {
      max-width: 560px;
      margin: 0;
      color: var(--muted);
      font-size: 16px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      width: fit-content;
      padding: 7px 10px;
      border-radius: 999px;
      color: var(--primary-dark);
      background: rgba(20, 184, 166, .10);
      border: 1px solid rgba(15, 118, 110, .13);
      font-size: 12px;
      font-weight: 900;
    }

    .channel-layout {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 18px;
      align-items: stretch;
    }

    .channel-feature {
      padding: 28px;
      border-radius: var(--radius-lg);
      background: linear-gradient(135deg, #ffffff, #ecfffa);
      border: 1px solid rgba(15, 118, 110, .13);
      box-shadow: var(--shadow-soft);
    }

    .feature-icon {
      width: 54px;
      height: 54px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      color: #fff;
      font-size: 24px;
      background: linear-gradient(135deg, var(--primary), var(--primary-2));
      box-shadow: 0 16px 28px rgba(15, 118, 110, .20);
    }

    .channel-feature h2,
    .card h3,
    .form-card h2,
    .news-panel h2,
    .privacy-box h2 {
      letter-spacing: -.03em;
    }

    .channel-feature h2 {
      margin: 18px 0 12px;
      font-size: 30px;
      line-height: 1.2;
    }

    .channel-feature p {
      margin: 0;
      color: var(--muted);
    }

    .check-list {
      display: grid;
      gap: 12px;
      margin: 22px 0 0;
      padding: 0;
      list-style: none;
    }

    .check-list li {
      display: flex;
      gap: 10px;
      color: #33413d;
      font-weight: 700;
    }

    .check-list li::before {
      content: "✓";
      width: 24px;
      height: 24px;
      flex: 0 0 auto;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #fff;
      background: var(--primary);
      font-size: 13px;
      font-weight: 900;
      margin-top: 1px;
    }

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

    .card {
      position: relative;
      overflow: hidden;
      padding: 22px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, .84);
      border: 1px solid var(--line);
      box-shadow: 0 10px 28px rgba(22, 32, 29, .06);
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }

    .card:hover {
      transform: translateY(-5px);
      border-color: rgba(15, 118, 110, .24);
      box-shadow: var(--shadow-soft);
    }

    .card h3 {
      margin: 14px 0 8px;
      font-size: 21px;
      line-height: 1.25;
    }

    .card p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .card-number {
      color: rgba(15, 118, 110, .15);
      font-size: 42px;
      font-weight: 950;
      line-height: 1;
      letter-spacing: -.06em;
    }

    .stats-strip {
      overflow: hidden;
      border-radius: var(--radius-xl);
      background:
        linear-gradient(135deg, rgba(255,255,255,.94), rgba(240,251,248,.96)),
        radial-gradient(circle at 75% 20%, rgba(249, 115, 22, .16), transparent 30%);
      border: 1px solid rgba(15, 118, 110, .14);
      box-shadow: var(--shadow-soft);
    }

    .stats-inner {
      display: grid;
      grid-template-columns: 1.1fr repeat(4, 1fr);
      gap: 0;
      align-items: stretch;
    }

    .stats-intro {
      padding: 28px;
      background: rgba(15, 118, 110, .07);
      border-right: 1px solid rgba(15, 118, 110, .12);
    }

    .stats-intro h2 {
      margin: 0 0 10px;
      font-size: 28px;
      line-height: 1.18;
    }

    .stats-intro p {
      margin: 0;
      color: var(--muted);
    }

    .stat-cell {
      padding: 28px 22px;
      border-right: 1px solid rgba(15, 118, 110, .10);
    }

    .stat-cell:last-child {
      border-right: 0;
    }

    .stat-cell strong {
      display: block;
      color: var(--primary-dark);
      font-size: clamp(28px, 3.2vw, 42px);
      line-height: 1;
      letter-spacing: -.05em;
    }

    .stat-cell span {
      display: block;
      margin-top: 9px;
      color: var(--muted);
      font-weight: 800;
      font-size: 13px;
    }

    .lead-section {
      padding-top: 62px;
    }

    .lead-wrap {
      display: grid;
      grid-template-columns: .88fr 1.12fr;
      gap: 22px;
      align-items: stretch;
    }

    .lead-aside {
      padding: 30px;
      border-radius: var(--radius-xl);
      color: #fff;
      background:
        linear-gradient(135deg, rgba(15, 118, 110, .96), rgba(11, 87, 82, .98)),
        radial-gradient(circle at 20% 20%, rgba(250, 204, 21, .18), transparent 36%);
      box-shadow: var(--shadow-soft);
    }

    .lead-aside h2 {
      margin: 0 0 12px;
      font-size: 34px;
      line-height: 1.12;
      letter-spacing: -.04em;
    }

    .lead-aside p {
      margin: 0;
      color: rgba(255,255,255,.76);
    }

    .countdown-card {
      margin-top: 24px;
      padding: 18px;
      border-radius: 22px;
      background: rgba(255,255,255,.10);
      border: 1px solid rgba(255,255,255,.14);
    }

    .countdown-title {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: center;
      color: #fff;
      font-weight: 900;
    }

    .countdown {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 9px;
      margin-top: 13px;
    }

    .time-box {
      padding: 12px 8px;
      text-align: center;
      border-radius: 16px;
      background: rgba(255,255,255,.12);
    }

    .time-box strong {
      display: block;
      font-size: 24px;
      line-height: 1;
    }

    .time-box span {
      display: block;
      margin-top: 5px;
      color: rgba(255,255,255,.66);
      font-size: 12px;
    }

    .form-card {
      padding: 28px;
      border-radius: var(--radius-xl);
      background: rgba(255,255,255,.9);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-soft);
    }

    .form-card h2 {
      margin: 0 0 8px;
      font-size: 30px;
      line-height: 1.18;
    }

    .form-card > p {
      margin: 0 0 22px;
      color: var(--muted);
    }

    .lead-form {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .field {
      display: grid;
      gap: 7px;
    }

    .field.full {
      grid-column: 1 / -1;
    }

    .field label {
      color: #36433f;
      font-size: 13px;
      font-weight: 900;
    }

    .field input,
    .field select,
    .field textarea {
      width: 100%;
      border: 1px solid rgba(22, 32, 29, .14);
      border-radius: 16px;
      background: #fffdf8;
      color: var(--ink);
      padding: 13px 14px;
      transition: border-color .22s ease, box-shadow .22s ease, background .22s ease;
    }

    .field textarea {
      min-height: 112px;
      resize: vertical;
    }

    .field input:focus,
    .field select:focus,
    .field textarea:focus {
      outline: 0;
      background: #fff;
      border-color: rgba(15, 118, 110, .45);
      box-shadow: 0 0 0 5px rgba(20, 184, 166, .12);
    }

    .form-footer {
      grid-column: 1 / -1;
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      margin-top: 4px;
    }

    .form-note {
      max-width: 430px;
      color: var(--weak);
      font-size: 12px;
    }

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

    .step-item {
      position: relative;
      padding: 22px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: 0 10px 24px rgba(22, 32, 29, .05);
    }

    .step-item::before {
      counter-increment: step;
      content: "0" counter(step);
      display: inline-flex;
      margin-bottom: 18px;
      color: var(--primary);
      font-size: 32px;
      line-height: 1;
      font-weight: 950;
      letter-spacing: -.04em;
    }

    .step-item h3 {
      margin: 0 0 8px;
      font-size: 19px;
    }

    .step-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .guarantee-wrap {
      display: grid;
      grid-template-columns: .8fr 1.2fr;
      gap: 18px;
    }

    .guarantee-statement {
      padding: 30px;
      border-radius: var(--radius-xl);
      background: #17211f;
      color: #fff;
      box-shadow: var(--shadow-soft);
    }

    .guarantee-statement h2 {
      margin: 0 0 12px;
      font-size: 34px;
      line-height: 1.12;
    }

    .guarantee-statement p {
      margin: 0;
      color: rgba(255,255,255,.72);
    }

    .guarantee-list {
      display: grid;
      gap: 14px;
    }

    .guarantee-item {
      display: grid;
      grid-template-columns: 54px 1fr auto;
      gap: 14px;
      align-items: center;
      padding: 18px;
      border-radius: 24px;
      background: rgba(255,255,255,.86);
      border: 1px solid var(--line);
      transition: transform .22s ease, box-shadow .22s ease;
    }

    .guarantee-item:hover {
      transform: translateX(4px);
      box-shadow: var(--shadow-soft);
    }

    .guarantee-icon {
      width: 54px;
      height: 54px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      color: var(--primary-dark);
      background: rgba(20, 184, 166, .12);
      font-size: 22px;
      font-weight: 900;
    }

    .guarantee-item h3 {
      margin: 0 0 3px;
      font-size: 18px;
    }

    .guarantee-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .guarantee-status {
      color: var(--primary);
      font-size: 13px;
      font-weight: 950;
      white-space: nowrap;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(310px, .8fr);
      gap: 18px;
      align-items: start;
    }

    .news-panel,
    .recommend-panel {
      border-radius: var(--radius-xl);
      background: rgba(255,255,255,.88);
      border: 1px solid var(--line);
      box-shadow: var(--shadow-soft);
    }

    .news-panel {
      overflow: hidden;
    }

    .news-panel h2,
    .recommend-panel h2 {
      margin: 0;
      padding: 24px 24px 16px;
      font-size: 26px;
      line-height: 1.18;
    }

    .news-list {
      margin: 0;
      padding: 0 24px 24px;
      list-style: none;
    }

    .news-list li + li {
      border-top: 1px solid rgba(22,32,29,.09);
    }

    .news-link {
      display: grid;
      grid-template-columns: 108px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 17px 0;
      transition: color .22s ease;
    }

    .news-date {
      color: var(--weak);
      font-size: 13px;
      font-weight: 800;
    }

    .news-title {
      color: var(--ink);
      font-weight: 900;
      line-height: 1.35;
    }

    .news-arrow {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--primary);
      background: rgba(20, 184, 166, .10);
      transition: transform .22s ease, background .22s ease;
    }

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

    .news-link:hover .news-arrow {
      transform: translateX(4px);
      background: rgba(20, 184, 166, .18);
    }

    .recommend-panel {
      padding-bottom: 18px;
    }

    .recommend-card {
      margin: 0 18px 12px;
      padding: 18px;
      border-radius: 22px;
      background: #fffaf0;
      border: 1px solid rgba(249, 115, 22, .16);
    }

    .recommend-card strong {
      display: block;
      margin-bottom: 6px;
      color: #6d3909;
      font-size: 18px;
    }

    .recommend-card p {
      margin: 0;
      color: #765b3f;
      font-size: 14px;
    }

    .version-wrap {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 20px;
      align-items: start;
    }

    .version-intro {
      position: sticky;
      top: 120px;
      padding: 28px;
      border-radius: var(--radius-xl);
      background: linear-gradient(135deg, #fff, #f0fbf8);
      border: 1px solid var(--line-strong);
      box-shadow: var(--shadow-soft);
    }

    .version-intro h2 {
      margin: 0 0 12px;
      font-size: 32px;
      line-height: 1.14;
    }

    .version-intro p {
      margin: 0;
      color: var(--muted);
    }

    .changelog {
      display: grid;
      gap: 14px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .change-item {
      display: grid;
      grid-template-columns: 126px 1fr;
      gap: 18px;
      padding: 20px;
      border-radius: 24px;
      background: rgba(255,255,255,.9);
      border: 1px solid var(--line);
      box-shadow: 0 10px 24px rgba(22,32,29,.05);
    }

    .change-time {
      color: var(--primary);
      font-size: 13px;
      font-weight: 950;
    }

    .change-item h3 {
      margin: 0 0 6px;
      font-size: 19px;
    }

    .change-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .faq-wrap {
      display: grid;
      grid-template-columns: .72fr 1.28fr;
      gap: 22px;
      align-items: start;
    }

    .faq-note {
      padding: 28px;
      border-radius: var(--radius-xl);
      color: #fff;
      background: linear-gradient(135deg, #3b2a13, #0f766e);
      box-shadow: var(--shadow-soft);
    }

    .faq-note h2 {
      margin: 0 0 12px;
      font-size: 32px;
      line-height: 1.16;
    }

    .faq-note p {
      margin: 0;
      color: rgba(255,255,255,.74);
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border-radius: 22px;
      background: rgba(255,255,255,.9);
      border: 1px solid var(--line);
      overflow: hidden;
      box-shadow: 0 8px 22px rgba(22,32,29,.05);
    }

    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      gap: 14px;
      align-items: center;
      padding: 18px 20px;
      color: var(--ink);
      background: transparent;
      text-align: left;
      font-weight: 950;
    }

    .faq-question span:last-child {
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: var(--primary);
      background: rgba(20,184,166,.11);
      transition: transform .22s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
      color: var(--muted);
      font-size: 15px;
    }

    .faq-item.open .faq-answer {
      display: block;
    }

    .faq-item.open .faq-question span:last-child {
      transform: rotate(45deg);
    }

    .privacy-card {
      position: relative;
      overflow: hidden;
      display: grid;
      grid-template-columns: 1.04fr .96fr;
      gap: 24px;
      padding: 32px;
      border-radius: var(--radius-xl);
      background:
        linear-gradient(135deg, rgba(255,255,255,.92), rgba(255,250,240,.92)),
        radial-gradient(circle at 85% 20%, rgba(20,184,166,.18), transparent 28%);
      border: 1px solid rgba(15,118,110,.14);
      box-shadow: var(--shadow-soft);
    }

    .privacy-box h2 {
      margin: 0 0 12px;
      font-size: 34px;
      line-height: 1.12;
    }

    .privacy-box p {
      margin: 0;
      color: var(--muted);
    }

    .privacy-points {
      display: grid;
      gap: 12px;
      align-content: center;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .privacy-points li {
      padding: 16px 18px;
      border-radius: 18px;
      background: rgba(15,118,110,.07);
      border: 1px solid rgba(15,118,110,.12);
      color: #31403b;
      font-weight: 800;
    }

    .site-footer {
      margin-top: 20px;
      padding: 48px 0 34px;
      color: rgba(255,255,255,.78);
      background: #111a18;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 24px;
      align-items: start;
    }

    .footer-brand {
      display: flex;
      gap: 14px;
      align-items: center;
      margin-bottom: 16px;
    }

    .footer-brand .brand-mark {
      box-shadow: none;
    }

    .footer-title {
      color: #fff;
      font-weight: 950;
      font-size: 20px;
    }

    .footer-text {
      max-width: 650px;
      margin: 0;
      color: rgba(255,255,255,.62);
    }

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

    .footer-links a {
      display: inline-flex;
      padding: 10px 12px;
      border-radius: 14px;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.08);
      transition: background .22s ease, transform .22s ease;
    }

    .footer-links a:hover {
      background: rgba(20,184,166,.16);
      transform: translateY(-2px);
    }

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
      margin-top: 30px;
      padding-top: 22px;
      border-top: 1px solid rgba(255,255,255,.10);
      color: rgba(255,255,255,.52);
      font-size: 13px;
    }

    .float-cta {
      position: fixed;
      right: 18px;
      bottom: 18px;
      z-index: 40;
      display: inline-flex;
      align-items: center;
      gap: 9px;
      padding: 12px 16px;
      border-radius: 999px;
      color: #fff;
      background: linear-gradient(135deg, var(--accent), var(--primary));
      box-shadow: 0 18px 38px rgba(15, 118, 110, .28);
      font-weight: 950;
      transition: transform .22s ease, box-shadow .22s ease;
    }

    .float-cta:hover {
      transform: translateY(-3px);
      box-shadow: 0 22px 46px rgba(15, 118, 110, .34);
    }

    @media (max-width: 1100px) {
      .nav-panel {
        grid-template-columns: 220px 1fr auto;
      }

      .quick-search {
        display: none;
      }

      .coupon-wall,
      .channel-layout,
      .lead-wrap,
      .guarantee-wrap,
      .news-layout,
      .version-wrap,
      .faq-wrap,
      .privacy-card {
        grid-template-columns: 1fr;
      }

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

      .coupon-board {
        min-height: auto;
      }

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

      .stats-intro {
        grid-column: 1 / -1;
        border-right: 0;
        border-bottom: 1px solid rgba(15, 118, 110, .12);
      }

      .stat-cell:nth-child(3) {
        border-right: 0;
      }

      .version-intro {
        position: static;
      }

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

    @media (max-width: 768px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .site-header {
        padding-top: 10px;
      }

      .nav-panel {
        grid-template-columns: 1fr auto;
        border-radius: 22px;
      }

      .brand {
        padding: 6px;
      }

      .brand-note {
        display: none;
      }

      .menu-toggle {
        display: grid;
        place-items: center;
      }

      .nav-card-row {
        grid-column: 1 / -1;
        display: none;
        padding-top: 8px;
      }

      .nav-panel.open .nav-card-row {
        display: flex;
      }

      .nav-actions .btn {
        display: none;
      }

      .hero {
        padding-top: 28px;
      }

      .coupon-wall {
        padding: 20px;
      }

      .hero-stage {
        min-height: auto;
        border-radius: 26px;
      }

      .hero h1 {
        font-size: 40px;
      }

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

      .hero-metrics,
      .coupon-chips,
      .channel-grid,
      .lead-form,
      .steps-timeline {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 38px 0;
      }

      .section-head {
        display: block;
      }

      .section-desc {
        margin-top: 12px;
      }

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

      .stat-cell,
      .stat-cell:nth-child(3) {
        border-right: 0;
        border-bottom: 1px solid rgba(15, 118, 110, .10);
      }

      .stat-cell:last-child {
        border-bottom: 0;
      }

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

      .guarantee-item {
        grid-template-columns: 48px 1fr;
      }

      .guarantee-status {
        grid-column: 2;
      }

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

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

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

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

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

    @media (max-width: 520px) {
      .nav-panel {
        padding: 9px;
      }

      .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 14px;
      }

      .brand-name {
        max-width: 170px;
        font-size: 15px;
      }

      .coupon-wall {
        gap: 18px;
        padding: 16px;
      }

      .main-coupon {
        padding: 22px;
        border-radius: 24px;
      }

      .coupon-code {
        display: grid;
      }

      .hero-actions .btn,
      .form-footer .btn,
      .float-cta {
        width: 100%;
      }

      .float-cta {
        left: 14px;
        right: 14px;
        justify-content: center;
      }

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

      .lead-aside,
      .form-card,
      .channel-feature,
      .guarantee-statement,
      .privacy-card,
      .faq-note,
      .version-intro {
        padding: 22px;
        border-radius: 24px;
      }

      .footer-grid {
        gap: 18px;
      }

      .copyright {
        margin-bottom: 48px;
      }
    }