/* roulang page: index */
:root {
      --bg: #f6f3ec;
      --bg-soft: #fbfaf6;
      --bg-deep: #17221f;
      --bg-deeper: #0e1715;
      --surface: #ffffff;
      --surface-warm: #fffaf0;
      --text: #17201e;
      --muted: #6b746f;
      --muted-2: #8b928e;
      --line: rgba(23, 34, 31, .12);
      --line-strong: rgba(23, 34, 31, .18);
      --gold: #b89056;
      --gold-light: #e3c78f;
      --green: #2f5b4f;
      --cyan: #87aba0;
      --danger: #a45e3f;
      --radius-sm: 10px;
      --radius-md: 18px;
      --radius-lg: 28px;
      --radius-xl: 38px;
      --shadow-sm: 0 10px 30px rgba(16, 25, 22, .08);
      --shadow-md: 0 20px 60px rgba(16, 25, 22, .12);
      --shadow-inset: inset 0 1px 0 rgba(255,255,255,.12);
      --container: 1180px;
      --ease: .25s ease;
      --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

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

    body {
      font-family: var(--font);
      line-height: 1.75;
      color: var(--text);
      background:
        radial-gradient(circle at 10% 0%, rgba(184,144,86,.12), transparent 28%),
        radial-gradient(circle at 90% 12%, rgba(135,171,160,.14), transparent 30%),
        var(--bg);
      overflow-x: hidden;
    }

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

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

    button,
    input,
    textarea {
      font: inherit;
    }

    button {
      border: 0;
      cursor: pointer;
    }

    input,
    textarea {
      width: 100%;
      border: 1px solid var(--line);
      border-radius: 14px;
      padding: 13px 15px;
      color: var(--text);
      background: rgba(255,255,255,.86);
      outline: none;
      transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }

    input:focus,
    textarea:focus,
    a:focus-visible,
    button:focus-visible {
      outline: 3px solid rgba(184,144,86,.34);
      outline-offset: 3px;
    }

    input:focus,
    textarea:focus {
      border-color: rgba(184,144,86,.72);
      box-shadow: 0 0 0 4px rgba(184,144,86,.12);
      background: #fff;
    }

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

    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(246, 243, 236, .82);
      backdrop-filter: blur(18px);
      border-bottom: 1px solid rgba(23,34,31,.08);
    }

    .nav-wrap {
      height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
      font-weight: 800;
      letter-spacing: -.02em;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 15px;
      display: grid;
      place-items: center;
      color: #fff;
      background:
        linear-gradient(135deg, rgba(184,144,86,.98), rgba(47,91,79,.96)),
        var(--green);
      box-shadow: 0 12px 26px rgba(47,91,79,.22);
      position: relative;
      overflow: hidden;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      width: 28px;
      height: 1px;
      background: rgba(255,255,255,.55);
      transform: rotate(-35deg);
      right: -5px;
      top: 12px;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
    }

    .brand-text strong {
      font-size: 18px;
      color: var(--text);
      white-space: nowrap;
    }

    .brand-text span {
      margin-top: 3px;
      font-size: 12px;
      color: var(--muted);
      font-weight: 600;
      white-space: nowrap;
    }

    .nav {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 6px;
      border: 1px solid rgba(23,34,31,.08);
      border-radius: 999px;
      background: rgba(255,255,255,.54);
      box-shadow: var(--shadow-inset);
    }

    .nav a {
      padding: 10px 18px;
      border-radius: 999px;
      color: var(--muted);
      font-weight: 700;
      font-size: 14px;
      transition: color var(--ease), background var(--ease), transform var(--ease);
    }

    .nav a:hover {
      color: var(--text);
      background: rgba(184,144,86,.12);
      transform: translateY(-1px);
    }

    .nav a.active {
      color: #fff;
      background: var(--bg-deep);
      box-shadow: 0 10px 20px rgba(23,34,31,.18);
    }

    .header-action {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 11px 16px;
      border-radius: 999px;
      background: rgba(47,91,79,.09);
      color: var(--green);
      font-weight: 800;
      font-size: 14px;
      transition: transform var(--ease), background var(--ease);
    }

    .header-action:hover {
      transform: translateY(-1px);
      background: rgba(47,91,79,.14);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: #fff;
      border: 1px solid var(--line);
      color: var(--text);
    }

    .menu-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 4px auto;
      background: currentColor;
      border-radius: 99px;
    }

    .hero {
      position: relative;
      min-height: calc(100vh - 76px);
      display: flex;
      align-items: center;
      isolation: isolate;
      overflow: hidden;
      background-image:
        linear-gradient(90deg, rgba(14,23,21,.88), rgba(14,23,21,.62) 46%, rgba(14,23,21,.18)),
        url("/assets/images/backpic/back-1.webp");
      background-size: cover;
      background-position: center;
      color: #fff;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 18% 18%, rgba(227,199,143,.22), transparent 25%),
        linear-gradient(180deg, rgba(255,255,255,.05), transparent 42%);
      z-index: -1;
    }

    .hero::after {
      content: "";
      position: absolute;
      inset: auto 0 0;
      height: 130px;
      background: linear-gradient(0deg, var(--bg), transparent);
      z-index: -1;
    }

    .hero-layout {
      width: 100%;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(330px, .75fr);
      align-items: end;
      gap: 56px;
      padding: 92px 0 118px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: var(--gold-light);
      font-weight: 800;
      font-size: 14px;
      letter-spacing: .08em;
      margin-bottom: 22px;
    }

    .eyebrow::before {
      content: "";
      width: 36px;
      height: 2px;
      background: var(--gold-light);
      border-radius: 99px;
    }

    h1 {
      font-size: clamp(44px, 7vw, 88px);
      line-height: 1.04;
      letter-spacing: -.06em;
      max-width: 780px;
      font-weight: 900;
    }

    .hero-sub {
      margin-top: 26px;
      max-width: 690px;
      color: rgba(255,255,255,.82);
      font-size: clamp(17px, 2vw, 21px);
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 36px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 13px 21px;
      border-radius: 999px;
      font-weight: 850;
      font-size: 15px;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .btn-primary {
      color: #17201e;
      background: linear-gradient(135deg, #f1d99d, #b89056);
      box-shadow: 0 18px 38px rgba(184,144,86,.25);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 24px 48px rgba(184,144,86,.33);
    }

    .btn-secondary {
      color: #fff;
      border-color: rgba(255,255,255,.28);
      background: rgba(255,255,255,.08);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: rgba(255,255,255,.15);
      border-color: rgba(255,255,255,.5);
    }

    .btn-dark {
      color: #fff;
      background: var(--bg-deep);
      box-shadow: 0 18px 36px rgba(23,34,31,.18);
    }

    .btn-dark:hover {
      transform: translateY(-2px);
      box-shadow: 0 24px 48px rgba(23,34,31,.22);
      background: #22312d;
    }

    .btn-light {
      color: var(--text);
      background: #fff;
      border-color: var(--line);
    }

    .btn-light:hover {
      transform: translateY(-2px);
      border-color: rgba(184,144,86,.45);
      box-shadow: var(--shadow-sm);
    }

    .hero-panel {
      border: 1px solid rgba(255,255,255,.18);
      border-radius: var(--radius-xl);
      padding: 18px;
      background: rgba(255,255,255,.10);
      backdrop-filter: blur(18px);
      box-shadow: 0 34px 80px rgba(0,0,0,.22);
    }

    .panel-photo {
      overflow: hidden;
      border-radius: 28px;
      aspect-ratio: 4 / 3;
      position: relative;
      background: rgba(255,255,255,.1);
    }

    .panel-photo img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      filter: saturate(.95) contrast(1.02);
    }

    .panel-photo::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 35%, rgba(14,23,21,.64));
    }

    .panel-caption {
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 18px;
      z-index: 2;
    }

    .panel-caption strong {
      display: block;
      font-size: 20px;
      margin-bottom: 5px;
    }

    .panel-caption span {
      color: rgba(255,255,255,.78);
      font-size: 14px;
    }

    .hero-mini-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 12px;
    }

    .hero-mini {
      padding: 17px;
      border-radius: 22px;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.14);
    }

    .hero-mini b {
      display: block;
      color: var(--gold-light);
      font-size: 24px;
      line-height: 1.1;
    }

    .hero-mini span {
      display: block;
      margin-top: 5px;
      color: rgba(255,255,255,.76);
      font-size: 13px;
    }

    main {
      position: relative;
    }

    .section {
      padding: 92px 0;
    }

    .section.compact {
      padding: 70px 0;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      align-items: end;
      gap: 28px;
      margin-bottom: 34px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--green);
      font-weight: 900;
      font-size: 13px;
      letter-spacing: .08em;
      margin-bottom: 11px;
    }

    .section-kicker::before {
      content: "";
      width: 22px;
      height: 2px;
      border-radius: 99px;
      background: var(--gold);
    }

    .section-title {
      font-size: clamp(28px, 4vw, 46px);
      line-height: 1.18;
      letter-spacing: -.04em;
      max-width: 760px;
      font-weight: 900;
    }

    .section-desc {
      color: var(--muted);
      max-width: 520px;
      font-size: 16px;
    }

    .feature-strip {
      margin-top: -54px;
      position: relative;
      z-index: 5;
    }

    .feature-shell {
      display: grid;
      grid-template-columns: 1.2fr .9fr .9fr 1fr;
      gap: 14px;
      padding: 14px;
      border-radius: 30px;
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(255,255,255,.78);
      box-shadow: var(--shadow-md);
      backdrop-filter: blur(18px);
    }

    .feature-card {
      padding: 24px;
      border-radius: 22px;
      background: var(--surface);
      border: 1px solid var(--line);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
      position: relative;
      overflow: hidden;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-sm);
      border-color: rgba(184,144,86,.35);
    }

    .feature-card.wide {
      background: linear-gradient(135deg, #182521, #2f5b4f);
      color: #fff;
      border-color: rgba(255,255,255,.12);
    }

    .feature-card.wide p {
      color: rgba(255,255,255,.74);
    }

    .feature-icon {
      width: 40px;
      height: 40px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: rgba(184,144,86,.12);
      color: var(--gold);
      font-weight: 900;
      margin-bottom: 18px;
    }

    .feature-card.wide .feature-icon {
      background: rgba(255,255,255,.12);
      color: var(--gold-light);
    }

    .feature-card h3 {
      font-size: 19px;
      line-height: 1.35;
      margin-bottom: 8px;
    }

    .feature-card p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .split {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 46px;
      align-items: center;
    }

    .split.reverse .split-media {
      order: 2;
    }

    .image-card {
      border-radius: var(--radius-xl);
      overflow: hidden;
      background: var(--surface);
      border: 1px solid rgba(255,255,255,.8);
      box-shadow: var(--shadow-md);
      position: relative;
    }

    .image-card img {
      width: 100%;
      height: 420px;
      object-fit: cover;
    }

    .image-card::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 45%, rgba(14,23,21,.52));
      pointer-events: none;
    }

    .image-note {
      position: absolute;
      left: 22px;
      right: 22px;
      bottom: 22px;
      z-index: 2;
      color: #fff;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: end;
    }

    .image-note strong {
      font-size: 22px;
      line-height: 1.25;
    }

    .image-note span {
      flex: 0 0 auto;
      padding: 7px 11px;
      border-radius: 999px;
      background: rgba(255,255,255,.14);
      border: 1px solid rgba(255,255,255,.22);
      font-size: 12px;
      font-weight: 800;
    }

    .content-list {
      display: grid;
      gap: 14px;
      margin-top: 26px;
    }

    .content-item {
      display: grid;
      grid-template-columns: 34px 1fr;
      gap: 14px;
      padding: 17px;
      border-radius: 20px;
      background: rgba(255,255,255,.58);
      border: 1px solid var(--line);
      transition: background var(--ease), transform var(--ease), border-color var(--ease);
    }

    .content-item:hover {
      background: #fff;
      transform: translateX(4px);
      border-color: rgba(184,144,86,.34);
    }

    .content-num {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: rgba(47,91,79,.1);
      color: var(--green);
      font-weight: 900;
      font-size: 13px;
    }

    .content-item strong {
      display: block;
      font-size: 17px;
      line-height: 1.35;
      margin-bottom: 4px;
    }

    .content-item span {
      color: var(--muted);
      font-size: 14px;
    }

    .tag-wall {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 38px;
      padding: 8px 14px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: rgba(255,255,255,.68);
      color: var(--muted);
      font-size: 14px;
      font-weight: 750;
      transition: transform var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
    }

    .tag:hover {
      transform: translateY(-2px);
      background: #fff;
      color: var(--text);
      border-color: rgba(184,144,86,.4);
    }

    .category-block {
      border-radius: var(--radius-xl);
      padding: 28px;
      background:
        linear-gradient(135deg, rgba(255,255,255,.82), rgba(255,250,240,.72)),
        var(--surface);
      border: 1px solid rgba(255,255,255,.86);
      box-shadow: var(--shadow-sm);
      display: grid;
      grid-template-columns: .88fr 1.12fr;
      gap: 28px;
      align-items: stretch;
    }

    .category-cover {
      border-radius: 28px;
      overflow: hidden;
      min-height: 330px;
      position: relative;
      background: var(--bg-deep);
    }

    .category-cover img {
      width: 100%;
      height: 100%;
      min-height: 330px;
      object-fit: cover;
      opacity: .9;
    }

    .category-cover::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 40%, rgba(14,23,21,.68));
    }

    .category-cover-text {
      position: absolute;
      left: 22px;
      right: 22px;
      bottom: 22px;
      z-index: 2;
      color: #fff;
    }

    .category-cover-text strong {
      font-size: 24px;
      display: block;
      margin-bottom: 8px;
    }

    .category-cover-text p {
      color: rgba(255,255,255,.78);
      font-size: 14px;
    }

    .category-info {
      display: flex;
      flex-direction: column;
      justify-content: center;
      padding: 12px 6px;
    }

    .badge-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin: 18px 0 24px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      border-radius: 999px;
      padding: 7px 12px;
      background: rgba(47,91,79,.08);
      color: var(--green);
      border: 1px solid rgba(47,91,79,.12);
      font-size: 13px;
      font-weight: 800;
    }

    .category-info h3 {
      font-size: clamp(26px, 3.2vw, 40px);
      line-height: 1.2;
      letter-spacing: -.04em;
      margin-bottom: 16px;
    }

    .category-info p {
      color: var(--muted);
      margin-bottom: 18px;
    }

    .proof-area {
      background: var(--bg-deep);
      color: #fff;
      border-radius: var(--radius-xl);
      padding: 42px;
      position: relative;
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .proof-area::before {
      content: "";
      position: absolute;
      width: 360px;
      height: 360px;
      right: -120px;
      top: -160px;
      border-radius: 50%;
      background: rgba(184,144,86,.18);
    }

    .proof-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 16px;
      margin-top: 28px;
      position: relative;
    }

    .proof-card {
      padding: 24px;
      border-radius: 24px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.12);
    }

    .proof-card b {
      display: block;
      font-size: 34px;
      color: var(--gold-light);
      line-height: 1.1;
      margin-bottom: 8px;
    }

    .proof-card span {
      color: rgba(255,255,255,.74);
      font-size: 14px;
    }

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

    .step-card {
      counter-increment: step;
      position: relative;
      padding: 26px;
      border-radius: 26px;
      background: rgba(255,255,255,.66);
      border: 1px solid var(--line);
      min-height: 210px;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease);
    }

    .step-card:hover {
      transform: translateY(-4px);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .step-card::before {
      content: "0" counter(step);
      display: inline-flex;
      width: 44px;
      height: 44px;
      border-radius: 16px;
      align-items: center;
      justify-content: center;
      background: var(--bg-deep);
      color: var(--gold-light);
      font-weight: 900;
      margin-bottom: 28px;
    }

    .step-card h3 {
      font-size: 19px;
      margin-bottom: 8px;
    }

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

    .faq-wrap {
      display: grid;
      grid-template-columns: .72fr 1.28fr;
      gap: 42px;
      align-items: start;
    }

    .faq-list {
      display: grid;
      gap: 13px;
    }

    .faq-item {
      border: 1px solid var(--line);
      border-radius: 22px;
      background: rgba(255,255,255,.7);
      overflow: hidden;
      transition: background var(--ease), border-color var(--ease), box-shadow var(--ease);
    }

    .faq-item:hover {
      background: #fff;
      border-color: rgba(184,144,86,.34);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      width: 100%;
      padding: 20px 22px;
      background: transparent;
      color: var(--text);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      text-align: left;
      font-weight: 900;
      font-size: 16px;
    }

    .faq-question i {
      width: 24px;
      height: 24px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: rgba(47,91,79,.1);
      color: var(--green);
      font-style: normal;
      flex: 0 0 auto;
      transition: transform var(--ease), background var(--ease);
    }

    .faq-answer {
      display: none;
      padding: 0 22px 20px;
      color: var(--muted);
      font-size: 14px;
    }

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

    .faq-item.open .faq-question i {
      transform: rotate(45deg);
      background: rgba(184,144,86,.16);
      color: var(--gold);
    }

    .cta {
      padding-bottom: 96px;
    }

    .cta-card {
      display: grid;
      grid-template-columns: 1fr .72fr;
      gap: 34px;
      align-items: center;
      padding: 40px;
      border-radius: var(--radius-xl);
      background:
        linear-gradient(135deg, rgba(23,34,31,.98), rgba(47,91,79,.94)),
        var(--bg-deep);
      color: #fff;
      box-shadow: var(--shadow-md);
      overflow: hidden;
      position: relative;
    }

    .cta-card::after {
      content: "";
      position: absolute;
      width: 440px;
      height: 440px;
      border-radius: 50%;
      right: -190px;
      bottom: -240px;
      background: rgba(184,144,86,.2);
    }

    .cta-card h2 {
      font-size: clamp(28px, 4vw, 46px);
      line-height: 1.18;
      letter-spacing: -.04em;
      margin-bottom: 14px;
      position: relative;
      z-index: 1;
    }

    .cta-card p {
      color: rgba(255,255,255,.75);
      max-width: 650px;
      position: relative;
      z-index: 1;
    }

    .contact-form {
      position: relative;
      z-index: 1;
      padding: 22px;
      border-radius: 28px;
      background: rgba(255,255,255,.10);
      border: 1px solid rgba(255,255,255,.14);
      display: grid;
      gap: 12px;
    }

    .contact-form input,
    .contact-form textarea {
      border-color: rgba(255,255,255,.18);
      background: rgba(255,255,255,.92);
    }

    .form-tip {
      color: rgba(255,255,255,.68);
      font-size: 13px;
      line-height: 1.6;
    }

    .site-footer {
      background: var(--bg-deeper);
      color: rgba(255,255,255,.78);
      padding: 54px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr .7fr .7fr;
      gap: 32px;
      padding-bottom: 34px;
      border-bottom: 1px solid rgba(255,255,255,.1);
    }

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

    .footer-brand .brand-mark {
      width: 40px;
      height: 40px;
    }

    .footer-brand strong {
      color: #fff;
      font-size: 18px;
    }

    .footer-text {
      max-width: 460px;
      color: rgba(255,255,255,.62);
      font-size: 14px;
    }

    .footer-col h3 {
      color: #fff;
      font-size: 16px;
      margin-bottom: 14px;
    }

    .footer-links {
      display: grid;
      gap: 10px;
    }

    .footer-links a,
    .footer-links span {
      color: rgba(255,255,255,.62);
      font-size: 14px;
      transition: color var(--ease), transform var(--ease);
    }

    .footer-links a:hover {
      color: var(--gold-light);
      transform: translateX(3px);
    }

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      align-items: center;
      padding-top: 24px;
      color: rgba(255,255,255,.5);
      font-size: 13px;
    }

    .copyright a {
      color: rgba(255,255,255,.58);
    }

    .copyright a:hover {
      color: var(--gold-light);
    }

    @media (max-width: 1024px) {
      .header-action {
        display: none;
      }

      .hero-layout {
        grid-template-columns: 1fr;
        align-items: center;
        padding: 78px 0 112px;
      }

      .hero-panel {
        max-width: 620px;
      }

      .feature-shell {
        grid-template-columns: 1fr 1fr;
      }

      .split,
      .category-block,
      .faq-wrap,
      .cta-card {
        grid-template-columns: 1fr;
      }

      .split.reverse .split-media {
        order: 0;
      }

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

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

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

      .nav-wrap {
        height: 66px;
      }

      .brand-text strong {
        font-size: 16px;
      }

      .brand-text span {
        display: none;
      }

      .menu-toggle {
        display: inline-block;
      }

      .nav {
        position: absolute;
        left: 14px;
        right: 14px;
        top: 73px;
        display: none;
        padding: 10px;
        border-radius: 22px;
        background: rgba(255,255,255,.96);
        box-shadow: var(--shadow-md);
        flex-direction: column;
        align-items: stretch;
      }

      .nav.open {
        display: flex;
      }

      .nav a {
        text-align: center;
        border-radius: 16px;
        padding: 12px;
      }

      .hero {
        min-height: auto;
        background-image:
          linear-gradient(180deg, rgba(14,23,21,.86), rgba(14,23,21,.58)),
          url("/assets/images/backpic/back-1.webp");
      }

      .hero-layout {
        gap: 28px;
        padding: 62px 0 92px;
      }

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

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

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

      .section {
        padding: 68px 0;
      }

      .section.compact {
        padding: 54px 0;
      }

      .section-head {
        display: block;
      }

      .section-desc {
        margin-top: 14px;
      }

      .feature-strip {
        margin-top: -36px;
      }

      .feature-shell,
      .process-grid {
        grid-template-columns: 1fr;
      }

      .image-card img {
        height: 330px;
      }

      .category-block,
      .proof-area,
      .cta-card {
        padding: 22px;
        border-radius: 28px;
      }

      .category-cover,
      .category-cover img {
        min-height: 280px;
      }

      .tag-wall {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding-bottom: 8px;
        scrollbar-width: thin;
      }

      .tag {
        flex: 0 0 auto;
      }

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

      .copyright {
        gap: 8px;
      }
    }

    @media (max-width: 520px) {
      h1 {
        font-size: 42px;
      }

      .hero-panel {
        padding: 12px;
        border-radius: 26px;
      }

      .panel-photo {
        border-radius: 20px;
      }

      .panel-caption strong {
        font-size: 18px;
      }

      .feature-card,
      .step-card {
        padding: 21px;
      }

      .image-note {
        display: block;
      }

      .image-note span {
        display: inline-flex;
        margin-top: 10px;
      }

      .cta-card h2,
      .section-title {
        letter-spacing: -.03em;
      }

      .contact-form {
        padding: 16px;
      }
    }

/* roulang page: category1 */
:root{
      --ink:#17221f;
      --ink-soft:#41504b;
      --muted:#71807a;
      --paper:#f7f8f5;
      --white:#fff;
      --mist:#e9efeb;
      --line:#dbe3de;
      --green:#173c34;
      --green-2:#285b4d;
      --gold:#b99554;
      --gold-light:#eadbbd;
      --radius:18px;
      --radius-sm:11px;
      --shadow:0 16px 42px rgba(26,48,41,.08);
      --ease:all .28s ease;
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;font-size:16px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1160px,calc(100% - 48px));margin:0 auto}
    .site-header{position:relative;background:rgba(247,248,245,.94);border-bottom:1px solid rgba(219,227,222,.8);z-index:10}
    .header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:inline-flex;align-items:center;gap:11px;font-size:20px;letter-spacing:.03em}
    .brand-mark{width:36px;height:36px;border-radius:10px;background:var(--green);color:#f8f3e9;display:grid;place-items:center;font-weight:800;font-size:18px;box-shadow:4px 4px 0 var(--gold-light)}
    .brand strong{font-weight:750}
    .nav{display:flex;align-items:center;gap:8px}
    .nav a{position:relative;padding:10px 17px;color:var(--ink-soft);font-size:14px;border-radius:30px;transition:var(--ease)}
    .nav a:hover,.nav a:focus-visible{color:var(--green);background:var(--mist);outline:none}
    .nav a.active{color:var(--white);background:var(--green);box-shadow:0 5px 14px rgba(23,60,52,.18)}
    .menu-toggle{display:none;border:0;background:transparent;color:var(--green);font-size:25px}
    .page-banner{position:relative;min-height:350px;display:flex;align-items:center;overflow:hidden;background:var(--green)}
    .page-banner:before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(13,37,31,.9),rgba(13,37,31,.62)),url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center}
    .page-banner:after{content:"";position:absolute;width:330px;height:330px;border:1px solid rgba(234,219,189,.36);border-radius:50%;right:10%;top:-120px}
    .banner-content{position:relative;z-index:1;color:var(--white);padding:64px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--gold-light);font-size:13px;letter-spacing:.16em;margin-bottom:16px}
    .eyebrow:before{content:"";width:28px;height:1px;background:var(--gold)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,64px);line-height:1.15;letter-spacing:-.04em;margin-bottom:18px}
    .banner-content p{max-width:610px;color:#dbe6e0;font-size:17px;margin-bottom:0}
    .crumbs{padding:22px 0 0;color:var(--muted);font-size:14px}
    .crumbs a{color:var(--green-2);transition:var(--ease)}
    .crumbs a:hover{color:var(--gold)}
    .crumbs span{padding:0 9px;color:#a1aca6}
    .intro{padding:58px 0 28px;display:flex;justify-content:space-between;align-items:flex-end;gap:40px}
    .section-kicker{color:var(--gold);font-size:13px;font-weight:700;letter-spacing:.14em;margin-bottom:10px}
    .section-title{font-size:clamp(28px,3.4vw,44px);line-height:1.25;letter-spacing:-.035em;margin-bottom:12px}
    .section-desc{max-width:650px;color:var(--muted);margin-bottom:0}
    .result-note{padding:10px 15px;border:1px solid var(--line);border-radius:30px;color:var(--green-2);font-size:13px;white-space:nowrap;background:var(--white)}
    .filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:19px 22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);margin:22px 0 30px}
    .filter-label{font-size:14px;color:var(--ink-soft);font-weight:700;margin-right:4px}
    .filter-btn{border:1px solid var(--line);background:#fbfcfa;color:var(--muted);padding:8px 16px;border-radius:30px;font-size:13px;transition:var(--ease)}
    .filter-btn:hover,.filter-btn:focus-visible{border-color:var(--gold);color:var(--green);outline:none}
    .filter-btn.active{border-color:var(--green);background:var(--green);color:var(--white)}
    .service-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:22px;padding-bottom:76px}
    .service-card{grid-column:span 4;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 7px 22px rgba(26,48,41,.035);transition:var(--ease)}
    .service-card.featured{grid-column:span 6}
    .service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#c5d4cc}
    .card-cover{height:190px;position:relative;overflow:hidden;background:var(--mist)}
    .service-card.featured .card-cover{height:230px}
    .card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
    .service-card:hover .card-cover img{transform:scale(1.04)}
    .card-cover:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 48%,rgba(15,38,32,.3))}
    .card-label{position:absolute;z-index:1;top:16px;left:16px;padding:5px 11px;border-radius:20px;background:rgba(255,255,255,.9);color:var(--green);font-size:12px}
    .card-body{padding:23px 24px 25px}
    .card-body h3{font-size:21px;margin-bottom:9px;line-height:1.35}
    .card-body p{color:var(--muted);font-size:14px;line-height:1.8;min-height:52px;margin-bottom:18px}
    .card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:15px;color:var(--muted);font-size:12px}
    .card-meta strong{color:var(--green-2);font-weight:600}
    .arrow-link{display:inline-flex;align-items:center;gap:7px;color:var(--green);font-size:14px;font-weight:700;transition:var(--ease)}
    .arrow-link span{font-size:18px;transition:var(--ease)}
    .arrow-link:hover{color:var(--gold)}
    .arrow-link:hover span{transform:translateX(4px)}
    .process-section{background:#edf2ee;padding:76px 0}
    .process-head{display:flex;justify-content:space-between;align-items:end;gap:35px;margin-bottom:38px}
    .process-head p{max-width:480px;color:var(--muted);margin-bottom:5px}
    .process-list{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#cfdad3;border:1px solid #cfdad3;border-radius:var(--radius);overflow:hidden}
    .process-item{position:relative;background:var(--white);padding:28px 25px 30px;min-height:185px}
    .process-number{font-family:Georgia,serif;font-size:38px;line-height:1;color:var(--gold);margin-bottom:22px}
    .process-item h3{font-size:18px;margin-bottom:7px}
    .process-item p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}
    .detail-section{padding:80px 0}
    .detail-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:62px;align-items:center}
    .detail-image{position:relative;padding:0 0 18px 18px}
    .detail-image:before{content:"";position:absolute;left:0;bottom:0;width:72%;height:75%;border:1px solid var(--gold);border-radius:var(--radius);z-index:-1}
    .detail-image img{width:100%;height:390px;object-fit:cover;border-radius:var(--radius);box-shadow:var(--shadow)}
    .detail-copy h2{font-size:clamp(28px,3.4vw,42px);line-height:1.25;margin-bottom:17px}
    .detail-copy>p{color:var(--muted);margin-bottom:25px}
    .check-list{list-style:none;padding:0;margin:0 0 27px}
    .check-list li{display:flex;gap:12px;align-items:flex-start;padding:11px 0;border-bottom:1px solid var(--line);color:var(--ink-soft);font-size:14px}
    .check-list li:before{content:"✓";display:grid;place-items:center;width:21px;height:21px;flex:0 0 21px;border-radius:50%;background:var(--gold-light);color:var(--green);font-size:12px;font-weight:800;margin-top:2px}
    .faq-section{padding:74px 0;background:var(--white)}
    .faq-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
    .faq-intro p{color:var(--muted);font-size:14px}
    .faq-list{display:grid;gap:11px}
    .faq-item{border:1px solid var(--line);border-radius:var(--radius-sm);background:#fbfcfa;overflow:hidden}
    .faq-item summary{list-style:none;cursor:pointer;padding:18px 21px;font-weight:700;color:var(--ink);display:flex;justify-content:space-between;gap:20px;transition:var(--ease)}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";font-size:22px;line-height:1;color:var(--gold);font-weight:400}
    .faq-item[open] summary{color:var(--green);background:#f0f5f1}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 21px 18px;color:var(--muted);font-size:14px;line-height:1.8}
    .contact-section{padding:70px 0}
    .contact-box{position:relative;overflow:hidden;border-radius:24px;background:var(--green);color:var(--white);padding:47px 54px;display:flex;align-items:center;justify-content:space-between;gap:35px}
    .contact-box:after{content:"";position:absolute;width:270px;height:270px;border:1px solid rgba(234,219,189,.25);border-radius:50%;right:-55px;top:-120px}
    .contact-box h2{position:relative;z-index:1;font-size:clamp(26px,3vw,38px);margin-bottom:10px}
    .contact-box p{position:relative;z-index:1;color:#d1dfd8;max-width:590px;margin:0}
    .btn{display:inline-flex;justify-content:center;align-items:center;gap:10px;border:1px solid transparent;border-radius:30px;padding:13px 23px;font-size:14px;font-weight:700;transition:var(--ease);white-space:nowrap}
    .btn-primary{background:var(--gold);color:#fff}
    .btn-primary:hover,.btn-primary:focus-visible{background:#c5a568;transform:translateY(-2px);box-shadow:0 8px 18px rgba(185,149,84,.25);outline:none}
    .btn-light{background:#f7f3ea;color:var(--green)}
    .btn-light:hover,.btn-light:focus-visible{background:#fff;transform:translateY(-2px);outline:none}
    .site-footer{background:#122d27;color:#dce8e1;padding:58px 0 20px}
    .footer-grid{display:grid;grid-template-columns:1.35fr .7fr .9fr;gap:70px;padding-bottom:42px}
    .footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-size:19px;margin-bottom:18px}
    .footer-brand .brand-mark{background:var(--gold);box-shadow:none;color:#173c34}
    .footer-text{max-width:390px;color:#9fb2a9;font-size:13px;line-height:1.9;margin:0}
    .footer-col h3{font-size:15px;color:#fff;margin:4px 0 15px}
    .footer-links{display:flex;flex-direction:column;gap:8px;color:#a9bcb3;font-size:13px}
    .footer-links a{transition:var(--ease)}
    .footer-links a:hover{color:var(--gold-light)}
    .copyright{border-top:1px solid rgba(220,232,225,.14);padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#82988e;font-size:12px}
    .copyright a:hover{color:var(--gold-light)}
    @media (max-width:1024px){
      .container{width:min(100% - 40px,900px)}
      .detail-layout{gap:38px}
      .footer-grid{gap:35px}
    }
    @media (max-width:768px){
      .header-inner{height:70px}
      .menu-toggle{display:block}
      .nav{position:absolute;left:20px;right:20px;top:78px;display:none;flex-direction:column;align-items:stretch;padding:10px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
      .nav.open{display:flex}
      .nav a{padding:12px 15px}
      .page-banner{min-height:300px}
      .intro,.process-head{display:block}
      .result-note{display:inline-block;margin-top:20px}
      .service-card,.service-card.featured{grid-column:span 6}
      .process-list{grid-template-columns:repeat(2,1fr)}
      .detail-layout,.faq-layout{grid-template-columns:1fr;gap:38px}
      .detail-image img{height:320px}
      .contact-box{display:block;padding:38px 30px}
      .contact-box .btn{margin-top:25px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .container{width:calc(100% - 32px)}
      h1{font-size:39px}
      .banner-content{padding:52px 0}
      .filter-bar{align-items:flex-start;padding:17px}
      .filter-label{width:100%}
      .service-grid{display:grid;grid-template-columns:1fr;gap:16px}
      .service-card,.service-card.featured{grid-column:auto}
      .card-cover,.service-card.featured .card-cover{height:200px}
      .process-section,.detail-section,.faq-section{padding:58px 0}
      .process-list{grid-template-columns:1fr}
      .process-item{min-height:auto}
      .detail-image{padding-left:10px}
      .detail-image img{height:250px}
      .contact-section{padding:48px 0}
      .contact-box{padding:31px 24px}
      .contact-box .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .footer-grid>div:first-child{grid-column:auto}
      .copyright{display:block;line-height:2}
      .copyright a{display:block;margin-top:4px}
    }