/* roulang page: index */
:root {
      --pine: #234f3e;
      --pine-mid: #2f6a54;
      --pine-deep: #14332a;
      --moss-ink: #1b3d32;
      --clay: #b65c38;
      --clay-deep: #8d4327;
      --paper: #f4efe6;
      --paper-2: #ebe3d4;
      --moss: #e5ece4;
      --cream: #f8f2e8;
      --ink: #1d1916;
      --stone: #6a5d54;
      --line: #d8cec0;
      --line-strong: #cbbfae;
      --white: #fffdf8;
      --shadow: 0 10px 24px rgba(70, 52, 36, .08);
      --shadow-2: 0 14px 28px rgba(70, 52, 36, .12);
      --radius: 12px;
      --radius-sm: 10px;
      --radius-btn: 999px;
      --container: 1220px;
      --space: 28px;
      --header-top: 42px;
      --focus: 0 0 0 3px rgba(47, 106, 84, .28);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", sans-serif;
      font-size: 17px;
      line-height: 1.82;
      color: var(--ink);
      background:
        linear-gradient(180deg, rgba(244,239,230,.96), rgba(244,239,230,.96)),
        repeating-linear-gradient(90deg, rgba(180,150,110,.04) 0 1px, transparent 1px 18px);
      background-color: var(--paper);
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--pine); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
    a:hover { color: var(--clay); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3 {
      font-family: "Noto Serif SC", "Source Han Serif SC", serif;
      font-weight: 700;
      letter-spacing: 0;
      line-height: 1.35;
      color: var(--ink);
      margin: 0 0 .45em;
    }
    h1 { font-size: clamp(1.8rem, 3.2vw, 2.7rem); }
    h2 { font-size: clamp(1.45rem, 2.4vw, 2.05rem); }
    h3 { font-size: 1.12rem; }
    p { margin: 0 0 1.05em; }
    p:last-child { margin-bottom: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible { outline: none; box-shadow: var(--focus); }
    .skip-link {
      position: absolute; left: 16px; top: -48px; z-index: 200;
      background: var(--pine); color: var(--cream); padding: 10px 16px; border-radius: 8px;
    }
    .skip-link:focus { top: 12px; color: var(--cream); }
    .container { width: min(100% - 40px, var(--container)); margin: 0 auto; }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--clay-deep); font-size: 13px; font-weight: 600; letter-spacing: .04em;
      margin-bottom: 10px;
    }
    .eyebrow::before {
      content: ""; width: 18px; height: 18px; border: 1.5px solid var(--clay);
      border-radius: 50%; box-shadow: inset 0 0 0 4px rgba(182,92,56,.18);
    }
    .lead { color: var(--stone); max-width: 760px; }
    .section { padding: 84px 0; position: relative; }
    .section + .section { border-top: 1px solid rgba(216,206,192,.7); }
    .section-moss { background: var(--moss); }
    .section-paper { background: var(--paper); }
    .section-warm { background: var(--paper-2); }
    .section-head { margin-bottom: 34px; max-width: 780px; }
    .section-head h2 { margin-bottom: 12px; }
    .kicker { font-size: 13px; color: var(--pine-mid); font-weight: 600; margin-bottom: 8px; }
    .badge {
      display: inline-flex; align-items: center; min-height: 28px;
      padding: 0 10px; border-radius: 999px; font-size: 12px; font-weight: 600;
      background: rgba(35,79,62,.08); color: var(--pine); border: 1px solid rgba(35,79,62,.12);
    }
    .badge-clay { background: rgba(182,92,56,.12); color: var(--clay-deep); border-color: rgba(182,92,56,.2); }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 22px; border-radius: var(--radius-btn);
      font-weight: 600; font-size: 15px; line-height: 1; transition: .2s ease;
      border: 1.5px solid transparent; text-decoration: none;
    }
    .btn-primary { background: var(--pine); color: var(--cream); }
    .btn-primary:hover { background: var(--pine-mid); color: var(--cream); transform: translateY(-1px); box-shadow: var(--shadow); }
    .btn-primary:active { transform: translateY(0); }
    .btn-ghost { background: transparent; color: var(--cream); border-color: rgba(247,241,230,.55); }
    .btn-ghost:hover { background: rgba(247,241,230,.12); color: var(--cream); }
    .btn-clay { background: transparent; color: var(--clay-deep); border-color: var(--clay); }
    .btn-clay:hover { background: rgba(182,92,56,.08); color: var(--clay-deep); transform: translateY(-1px); }
    .btn-light { background: var(--cream); color: var(--pine-deep); }
    .btn-light:hover { background: #fff; color: var(--pine); }
    .site-header {
      position: sticky; top: 0; z-index: 80;
      box-shadow: 0 1px 0 rgba(216,206,192,.8);
    }
    .topbar {
      background: var(--pine-deep); color: #eadfcf; font-size: 13px;
      min-height: var(--header-top);
    }
    .topbar-inner {
      width: min(100% - 40px, var(--container)); margin: 0 auto;
      min-height: var(--header-top); display: flex; align-items: center; justify-content: space-between; gap: 16px;
    }
    .topbar a { color: #eadfcf; }
    .topbar a:hover { color: #fff; }
    .top-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; }
    .top-meta span { display: inline-flex; align-items: center; gap: 6px; min-height: 32px; }
    .top-cta { min-height: 32px; display: inline-flex; align-items: center; font-weight: 600; color: #f3d3c0; }
    .nav-main {
      background: rgba(244,239,230,.94);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--line);
    }
    .nav-inner {
      width: min(100% - 40px, var(--container)); margin: 0 auto;
      min-height: 74px; display: flex; align-items: center; gap: 18px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px; color: var(--ink); flex: 0 0 auto;
    }
    .logo:hover { color: var(--pine); }
    .logo-mark {
      width: 42px; height: 42px; border-radius: 50%;
      border: 1.5px solid var(--pine);
      display: grid; place-items: center;
      background: radial-gradient(circle at 30% 30%, #f7f1e6, #dfe8dc);
      box-shadow: inset 0 0 0 5px rgba(35,79,62,.08);
    }
    .logo-text { font-family: "Noto Serif SC", serif; font-size: 22px; font-weight: 700; line-height: 1; }
    .logo-sub { display: block; font-family: "Noto Sans SC", sans-serif; font-size: 11px; color: var(--stone); font-weight: 500; margin-top: 4px; }
    .nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
    .nav-links a {
      position: relative; color: var(--ink); font-size: 15px; font-weight: 500;
      min-height: 44px; display: inline-flex; align-items: center; padding: 0 11px;
    }
    .nav-links a:hover { color: var(--pine); }
    .nav-links a.is-active { color: var(--pine); }
    .nav-links a.is-active::after,
    .nav-links a:hover::after {
      content: ""; position: absolute; left: 12px; right: 12px; bottom: 8px; height: 2px;
      background: var(--pine); border-radius: 2px;
    }
    .nav-links a.is-active::before {
      content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--clay);
      position: absolute; left: 50%; bottom: 2px; transform: translateX(-50%);
    }
    .nav-cta { margin-left: 8px; flex: 0 0 auto; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; margin-left: auto;
      border: 1px solid var(--line); border-radius: 10px; position: relative;
    }
    .menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
      position: absolute; left: 12px; right: 12px; height: 2px; background: var(--ink); content: "";
    }
    .menu-toggle span { top: 21px; }
    .menu-toggle span::before { top: -7px; }
    .menu-toggle span::after { top: 7px; }
    .site-header.is-open .menu-toggle span { background: transparent; }
    .site-header.is-open .menu-toggle span::before { top: 0; transform: rotate(45deg); }
    .site-header.is-open .menu-toggle span::after { top: 0; transform: rotate(-45deg); }
    .site-header.is-compact .topbar { display: none; }
    .hero {
      position: relative; min-height: min(86vh, 760px); color: var(--cream); overflow: hidden;
    }
    .slides { position: absolute; inset: 0; }
    .slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden;
      transition: opacity .7s ease, visibility .7s ease;
    }
    .slide.is-on { opacity: 1; visibility: visible; }
    .slide img { width: 100%; height: 100%; object-fit: cover; }
    .slide-mask {
      position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(20,51,42,.78) 0%, rgba(20,51,42,.52) 48%, rgba(20,51,42,.28) 100%);
    }
    .hero-content {
      position: relative; z-index: 2; min-height: min(86vh, 760px);
      display: flex; align-items: center; padding: 54px 0 90px;
    }
    .hero-copy { max-width: 680px; }
    .brand-seal {
      display: inline-flex; align-items: center; gap: 8px;
      border: 1px solid rgba(247,241,230,.35); border-radius: 999px;
      padding: 6px 12px; font-size: 13px; margin-bottom: 16px; color: #f3ebdd;
    }
    .brand-seal b { font-family: "Noto Serif SC", serif; font-weight: 700; }
    .hero h1, .slide-title {
      font-family: "Noto Serif SC", serif; font-size: clamp(1.9rem, 4vw, 3rem);
      line-height: 1.28; margin: 0 0 12px; color: var(--cream);
    }
    .hero-sub { font-size: 18px; color: #eadfcf; margin-bottom: 18px; max-width: 36em; }
    .hero-desc { color: #ddd2c2; font-size: 16px; line-height: 1.85; margin-bottom: 26px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-ctrl {
      position: absolute; left: 0; right: 0; bottom: 22px; z-index: 3;
    }
    .ctrl-inner {
      width: min(100% - 40px, var(--container)); margin: 0 auto;
      display: flex; align-items: center; gap: 10px;
    }
    .dots { display: flex; gap: 8px; }
    .dot {
      width: 44px; height: 44px; display: grid; place-items: center; color: transparent;
    }
    .dot i {
      display: block; width: 9px; height: 9px; border-radius: 50%;
      background: rgba(247,241,230,.4);
    }
    .dot.is-on i { background: var(--clay); transform: scale(1.15); }
    .play-btn, .swap-btn {
      width: 44px; height: 44px; border-radius: 50%;
      border: 1px solid rgba(247,241,230,.4); color: var(--cream);
      display: grid; place-items: center;
    }
    .play-btn { width: 52px; height: 52px; background: rgba(20,51,42,.35); }
    .play-btn:hover, .swap-btn:hover { background: rgba(247,241,230,.14); }
    .bind-line {
      position: absolute; left: 18px; top: 12%; bottom: 12%; width: 1px;
      background: repeating-linear-gradient(to bottom, rgba(247,241,230,.18) 0 8px, transparent 8px 16px);
      pointer-events: none;
    }
    .split {
      display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center;
    }
    .split-reverse { grid-template-columns: .82fr 1.18fr; }
    .offset-photo {
      position: relative; margin-right: 24px;
    }
    .offset-photo img {
      width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: 14px;
      box-shadow: var(--shadow); border: 1px solid rgba(216,206,192,.7);
    }
    .offset-photo::after {
      content: ""; position: absolute; right: -18px; bottom: -18px; width: 46%; height: 46%;
      border: 1px solid var(--pine-mid); border-radius: 14px; z-index: -1;
    }
    .fact-box {
      margin-top: 22px; padding: 18px 20px; border-radius: 12px;
      background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow);
    }
    .fact-box strong { color: var(--pine); font-family: "Noto Serif SC", serif; }
    .matrix {
      display: grid; grid-template-columns: 1.25fr .75fr; gap: 22px;
    }
    .feature-stack { display: grid; gap: 22px; }
    .feature-card {
      position: relative; min-height: 230px; border-radius: 14px; overflow: hidden; color: var(--cream);
      box-shadow: var(--shadow); display: flex; align-items: flex-end;
    }
    .feature-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
    .feature-card .cap {
      position: relative; padding: 24px; background: linear-gradient(180deg, transparent, rgba(20,51,42,.82));
      width: 100%;
    }
    .scene-list { display: grid; gap: 12px; }
    .scene-item {
      background: var(--white); border: 1px solid var(--line); border-radius: 12px;
      padding: 16px 18px; display: grid; grid-template-columns: 44px 1fr auto; gap: 12px; align-items: center;
      box-shadow: var(--shadow); transition: .2s ease;
    }
    .scene-item:hover { transform: translateY(-1px); box-shadow: var(--shadow-2); }
    .ico {
      width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center;
      background: var(--moss); color: var(--pine); border: 1px solid rgba(35,79,62,.12);
    }
    .scene-item h3 { margin: 0 0 2px; font-size: 1.02rem; }
    .scene-item p { margin: 0; color: var(--stone); font-size: 14px; line-height: 1.6; }
    .adv-grid {
      display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 18px;
    }
    .card {
      background: var(--white); border: 1px solid var(--line); border-radius: 12px;
      padding: 22px; box-shadow: var(--shadow); transition: .2s ease;
    }
    .card:hover { transform: translateY(-1px); box-shadow: var(--shadow-2); }
    .card p { color: var(--stone); font-size: 15px; }
    .card-emphasize {
      background: var(--pine-deep); color: var(--cream); border-color: transparent;
      grid-row: span 2; display: flex; flex-direction: column; justify-content: space-between; min-height: 100%;
    }
    .card-emphasize h3, .card-emphasize p { color: var(--cream); }
    .card-emphasize .stat-num {
      font-family: "Noto Serif SC", serif; font-size: 56px; line-height: 1; color: #e7c4ad;
    }
    .course-grid {
      display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 18px;
    }
    .course-card {
      background: var(--white); border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
      box-shadow: var(--shadow); display: flex; flex-direction: column; transition: .2s ease;
    }
    .course-card:hover { transform: translateY(-1px); box-shadow: var(--shadow-2); }
    .course-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
    .course-card.wide img { aspect-ratio: 16/10; object-fit: cover; object-position: 30% 40%; }
    .course-card:nth-child(2) img { object-position: center 20%; aspect-ratio: 3/2; }
    .course-card:nth-child(3) img { object-position: 70% center; aspect-ratio: 4/5; max-height: 280px; }
    .course-body { padding: 18px 18px 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .course-meta { display: flex; gap: 8px; flex-wrap: wrap; }
    .course-body h3 { margin: 0; }
    .course-body p { color: var(--stone); font-size: 15px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .data-bar {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px;
      background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
    }
    .data-item {
      background: var(--white); padding: 26px 18px; text-align: left;
    }
    .data-item b {
      display: block; font-family: "Noto Serif SC", serif; font-size: 34px; color: var(--clay-deep); line-height: 1.1;
    }
    .data-item span { color: var(--stone); font-size: 14px; }
    .flow {
      display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; counter-reset: step;
    }
    .step {
      background: var(--white); border: 1px solid var(--line); border-radius: 12px; padding: 18px 16px;
      position: relative; box-shadow: var(--shadow);
    }
    .step::before {
      counter-increment: step; content: counter(step, decimal-leading-zero);
      font-family: "Noto Serif SC", serif; color: var(--pine); font-size: 22px; display: block; margin-bottom: 8px;
    }
    .step h3 { font-size: 1rem; margin-bottom: 6px; }
    .step p { font-size: 14px; color: var(--stone); }
    .idea {
      background: var(--moss-ink); color: var(--cream); padding: 88px 0; position: relative; overflow: hidden;
    }
    .idea-bg {
      position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .22;
    }
    .idea-grid {
      position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center;
    }
    .idea h2, .idea p, .idea li { color: #f3ebdd; }
    .idea-points { display: grid; gap: 14px; margin-top: 18px; }
    .idea-points li {
      padding-left: 18px; border-left: 2px solid var(--clay); color: #ddd2c2; font-size: 16px;
    }
    .quote-card {
      background: rgba(247,241,230,.08); border: 1px solid rgba(247,241,230,.16);
      border-radius: 14px; overflow: hidden;
    }
    .quote-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .quote-card blockquote {
      margin: 0; padding: 20px 22px 22px; font-family: "Noto Serif SC", serif; font-size: 18px; line-height: 1.7;
    }
    .quote-card cite { display: block; margin-top: 10px; font-style: normal; font-family: "Noto Sans SC", sans-serif; font-size: 13px; color: #cfc3b2; }
    .masonry {
      display: grid; grid-template-columns: 1.2fr 1fr 1.1fr; grid-auto-rows: 140px; gap: 14px;
    }
    .tile {
      position: relative; border-radius: 12px; overflow: hidden; min-height: 100%;
      box-shadow: var(--shadow); border: 1px solid rgba(216,206,192,.4);
    }
    .tile:nth-child(1) { grid-row: span 2; }
    .tile:nth-child(2) { grid-column: 2; }
    .tile:nth-child(3) { grid-row: span 2; grid-column: 3; }
    .tile:nth-child(4) { grid-row: span 2; }
    .tile:nth-child(5) { grid-column: 2; grid-row: span 2; }
    .tile:nth-child(6) { grid-column: 3; }
    .tile img { width: 100%; height: 100%; object-fit: cover; }
    .tile summary {
      list-style: none; cursor: pointer; position: absolute; inset: auto 0 0 0;
      padding: 16px 16px 14px; color: var(--cream); min-height: 72px;
      background: linear-gradient(180deg, transparent, rgba(20,51,42,.86));
    }
    .tile summary::-webkit-details-marker { display: none; }
    .tile summary h3 { color: var(--cream); margin: 0 0 4px; font-size: 1.02rem; }
    .tile p { display: none; margin: 8px 0 0; font-size: 14px; color: #ddd2c2; }
    .tile[open] p { display: block; }
    .stories { display: grid; gap: 28px; }
    .story {
      display: grid; grid-template-columns: 280px 1fr; gap: 28px; align-items: center;
      background: var(--white); border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
      box-shadow: var(--shadow);
    }
    .story:nth-child(even) { grid-template-columns: 1fr 280px; }
    .story:nth-child(even) img { order: 2; }
    .story img { width: 100%; height: 100%; min-height: 220px; object-fit: cover; }
    .story-body { padding: 24px 26px; }
    .review-grid { display: grid; grid-template-columns: 1.15fr 1fr 1fr 1fr; gap: 16px; }
    .review {
      background: var(--white); border: 1px solid var(--line); border-radius: 12px; padding: 20px;
      box-shadow: var(--shadow);
    }
    .stars { color: var(--clay); letter-spacing: 2px; font-size: 13px; margin-bottom: 8px; }
    .review p { font-size: 15px; color: var(--stone); }
    .review .who { margin-top: 14px; font-size: 13px; color: var(--pine); font-weight: 600; }
    .news-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 16px; }
    .news-main, .news-side article {
      background: var(--white); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow);
    }
    .news-main { display: grid; grid-template-columns: 1.1fr .9fr; }
    .news-main img { width: 100%; height: 100%; object-fit: cover; min-height: 220px; }
    .news-main div, .news-side article { padding: 18px 20px; }
    .news-side { display: grid; gap: 16px; }
    .news-side article { display: grid; grid-template-columns: 112px 1fr; padding: 0; }
    .news-side img { width: 112px; height: 100%; object-fit: cover; }
    .news-side div { padding: 14px 14px 14px 0; }
    time { color: var(--clay-deep); font-size: 12px; font-weight: 600; }
    .news-more { margin-top: 18px; }
    .partners {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
    }
    .partner {
      min-height: 72px; display: grid; place-items: center; text-align: center;
      border: 1px solid var(--line); border-radius: 12px; background: var(--white);
      color: #8a8076; font-weight: 600; padding: 12px; transition: .2s ease;
    }
    .partner:hover { color: var(--pine); border-color: var(--pine-mid); transform: translateY(-1px); }
    .faq-list { display: grid; gap: 10px; max-width: 860px; }
    .faq-item { background: var(--white); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
    .faq-q {
      width: 100%; text-align: left; min-height: 56px; padding: 14px 18px;
      font-weight: 700; display: flex; justify-content: space-between; gap: 12px; align-items: center;
    }
    .faq-q span { color: var(--pine); font-size: 20px; }
    .faq-a { display: none; padding: 0 18px 16px; background: #faf6ee; color: var(--stone); font-size: 15px; }
    .faq-item.is-open .faq-a { display: block; }
    .guarantee {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 0;
      border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
      background: var(--white);
    }
    .g-item {
      display: flex; align-items: center; gap: 12px; padding: 22px 18px;
      border-right: 1px solid var(--line); min-height: 88px;
    }
    .g-item:last-child { border-right: 0; }
    .g-item b { display: block; font-size: 15px; }
    .g-item span { color: var(--stone); font-size: 13px; }
    .contact {
      background: var(--pine-deep); color: var(--cream); padding: 88px 0;
    }
    .contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: start; }
    .contact h2, .contact p { color: #f3ebdd; }
    .contact-list { display: grid; gap: 10px; margin: 22px 0 0; }
    .contact-list li { color: #ddd2c2; }
    .contact-list a { color: #f3d3c0; }
    .form {
      background: var(--paper); color: var(--ink); border-radius: 14px; padding: 24px;
      box-shadow: var(--shadow-2);
    }
    .form-row { display: grid; gap: 6px; margin-bottom: 14px; }
    .form-row.two { grid-template-columns: 1fr 1fr; gap: 14px; }
    label { font-size: 14px; font-weight: 600; color: var(--ink); }
    input, select, textarea {
      width: 100%; min-height: 44px; border: 1px solid var(--line); border-radius: 10px;
      background: #fbf7ef; padding: 10px 12px; color: var(--ink);
    }
    textarea { min-height: 110px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--pine-mid); box-shadow: var(--focus); outline: none; }
    .form-note { font-size: 13px; color: var(--stone); margin-top: 8px; }
    .form-ok { display: none; margin-top: 12px; padding: 10px 12px; border-radius: 10px; background: var(--moss); color: var(--pine); }
    .form.is-ok .form-ok { display: block; }
    .site-footer {
      background: #10241e; color: #cfc3b2; padding: 48px 0 24px; font-size: 14px;
    }
    .footer-grid {
      display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 28px; margin-bottom: 28px;
    }
    .footer-brand { font-family: "Noto Serif SC", serif; font-size: 24px; color: #f3ebdd; }
    .footer-nav { display: grid; gap: 8px; }
    .footer-nav a { color: #cfc3b2; min-height: 32px; display: inline-flex; align-items: center; }
    .copy { border-top: 1px solid rgba(247,241,230,.1); padding-top: 16px; color: #a89c8f; }
    body.nav-lock { overflow: hidden; }
    @media (max-width: 1280px) {
      .course-grid, .adv-grid, .review-grid { grid-template-columns: repeat(3, 1fr); }
      .review-grid { grid-template-columns: 1fr 1fr; }
      .card-emphasize { grid-row: auto; }
    }
    @media (max-width: 1024px) {
      .nav-links { display: none; }
      .nav-cta { display: none; }
      .menu-toggle { display: inline-block; }
      .nav-links.is-open {
        display: flex; flex-direction: column; align-items: stretch;
        position: absolute; left: 0; right: 0; top: 100%;
        background: var(--paper); border-bottom: 1px solid var(--line);
        padding: 10px 20px 18px; box-shadow: var(--shadow-2);
      }
      .nav-links.is-open a { min-height: 48px; border-bottom: 1px solid var(--line); }
      .split, .split-reverse, .matrix, .idea-grid, .news-grid, .contact-grid, .footer-grid, .news-main { grid-template-columns: 1fr; }
      .offset-photo { margin: 0 0 12px; }
      .flow { grid-template-columns: repeat(3, 1fr); }
      .course-grid, .adv-grid { grid-template-columns: 1fr 1fr; }
      .data-bar { grid-template-columns: 1fr 1fr; }
      .guarantee { grid-template-columns: 1fr 1fr; }
      .g-item { border-bottom: 1px solid var(--line); }
      .partners { grid-template-columns: 1fr 1fr 1fr; }
      .hero, .hero-content { min-height: 620px; }
      .masonry { grid-template-columns: 1fr 1fr; grid-auto-rows: 160px; }
      .tile:nth-child(n) { grid-column: auto; grid-row: span 2; }
      .site-header { position: sticky; }
    }
    @media (max-width: 768px) {
      body { font-size: 16px; }
      .section, .idea, .contact { padding: 64px 0; }
      .top-meta span:nth-child(2) { display: none; }
      .course-grid, .adv-grid, .partners, .review-grid { grid-template-columns: 1fr; }
      .story, .story:nth-child(even) { grid-template-columns: 1fr; }
      .story:nth-child(even) img { order: 0; }
      .flow { grid-template-columns: 1fr; }
      .flow .step { padding-left: 22px; }
      .form-row.two { grid-template-columns: 1fr; }
      .news-side article { grid-template-columns: 96px 1fr; }
      .hero, .hero-content { min-height: 560px; }
      .bind-line { display: none; }
    }
    @media (max-width: 520px) {
      .container, .topbar-inner, .nav-inner, .ctrl-inner { width: min(100% - 28px, var(--container)); }
      .data-bar, .guarantee, .partners { grid-template-columns: 1fr 1fr; }
      .masonry { grid-template-columns: 1fr 1fr; grid-auto-rows: 120px; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .btn { width: 100%; }
      .nav-cta { width: auto; }
    }
    @media (max-width: 375px) {
      h1, .slide-title { font-size: 1.55rem; }
      .logo-text { font-size: 18px; }
      .topbar { font-size: 12px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition: none !important; animation: none !important; }
    }