/* roulang page: index */
:root {
      --pine: #2a6a54;
      --pine-dark: #16382e;
      --pine-deep: #102820;
      --mint: #7dbea5;
      --apricot: #e39b4a;
      --apricot-deep: #c67b2a;
      --gold: #f0c989;
      --paper: #f4efe6;
      --chalk: #fbf8f2;
      --ink: #1c2a24;
      --muted: #5c6b64;
      --line: #e6dccb;
      --white: #fffdf8;
      --danger: #b42318;
      --ok: #1f7a4d;
      --radius: 24px;
      --radius-sm: 14px;
      --radius-pill: 999px;
      --shadow: 0 12px 32px rgba(22, 56, 46, .08);
      --shadow-hover: 0 18px 40px rgba(22, 56, 46, .14);
      --container: 1220px;
      --header-h: 118px;
      --grad-pine: linear-gradient(135deg, #2a6a54 0%, #7dbea5 100%);
      --grad-gold: linear-gradient(135deg, #e39b4a 0%, #f0c989 100%);
      --grad-hero: linear-gradient(110deg, rgba(16, 40, 32, .82) 8%, rgba(42, 106, 84, .55) 58%, rgba(16, 40, 32, .35) 100%);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      color: var(--ink);
      background: var(--paper);
      background-image:
        linear-gradient(rgba(244, 239, 230, .92), rgba(244, 239, 230, .92)),
        repeating-linear-gradient(180deg, rgba(42, 106, 84, .045) 0 1px, transparent 1px 32px);
      overflow-x: hidden;
    }
    img { max-width: 100%; display: block; height: auto; }
    a { color: var(--pine); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
    a:hover { color: var(--pine-dark); }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, .hero-title {
      font-family: "Noto Serif SC", "Songti SC", serif;
      font-weight: 700;
      line-height: 1.3;
      color: var(--pine-dark);
      margin: 0 0 12px;
    }
    h1, .hero-title { font-size: clamp(28px, 4vw, 48px); }
    h2 { font-size: clamp(24px, 3vw, 36px); }
    h3 { font-size: 20px; }
    p { margin: 0 0 12px; }
    ul { margin: 0; padding: 0; list-style: none; }
    .container { width: min(100% - 40px, var(--container)); margin: 0 auto; }
    .skip {
      position: absolute; left: -999px; top: 8px;
    }
    .skip:focus { left: 12px; z-index: 80; background: #fff; padding: 8px 12px; }
    .badge {
      display: inline-flex; align-items: center; justify-content: center; gap: 6px;
      min-height: 36px; padding: 4px 14px;
      border-radius: var(--radius-pill);
      background: var(--grad-gold);
      color: var(--pine-deep);
      font-weight: 600; font-size: 13px; letter-spacing: .02em;
      box-shadow: 0 6px 16px rgba(227, 155, 74, .25);
      white-space: nowrap;
    }
    .badge.pine { background: var(--grad-pine); color: #fff; box-shadow: 0 6px 16px rgba(42, 106, 84, .25); }
    .badge.ghost {
      background: rgba(255, 253, 248, .16);
      color: #fff;
      border: 1px solid rgba(240, 201, 137, .55);
      box-shadow: none;
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 48px; min-width: 44px; padding: 0 22px;
      border-radius: var(--radius-pill); border: 1px solid transparent;
      font-size: 15px; font-weight: 600; line-height: 1;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, filter .2s ease;
    }
    .btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: 3px solid rgba(227, 155, 74, .65);
      outline-offset: 2px;
    }
    .btn-primary {
      background: var(--grad-pine); color: #fff;
      box-shadow: 0 10px 22px rgba(42, 106, 84, .28);
    }
    .btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); color: #fff; }
    .btn-primary:active { transform: translateY(0); filter: brightness(.96); }
    .btn-ghost {
      background: transparent; color: #fff;
      border-color: rgba(255,253,248,.55);
    }
    .btn-ghost:hover { background: rgba(255,253,248,.12); color: #fff; }
    .btn-line {
      background: transparent; color: var(--pine);
      border-color: var(--pine);
    }
    .btn-line:hover { background: rgba(42, 106, 84, .08); }
    .kicker {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--apricot-deep); font-size: 13px; font-weight: 600; letter-spacing: .08em;
      margin-bottom: 10px;
    }
    .kicker::before {
      content: ""; width: 28px; height: 2px; background: var(--grad-pine); border-radius: 2px;
    }
    .lead { color: var(--muted); max-width: 720px; }
    .section { padding: 92px 0; position: relative; }
    .section.alt { background: var(--chalk); }
    .section-head { margin-bottom: 36px; max-width: 760px; }
    .card {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }
    .card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--pine); }
    .cover { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .card-body { padding: 22px 22px 24px; }
    .site-header {
      position: sticky; top: 0; z-index: 50;
      background: rgba(251, 248, 242, .92);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--line);
    }
    .nav-top {
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
      min-height: 42px; padding: 6px 0;
      font-size: 13px; color: var(--muted);
      background: #f7f1e6;
    }
    .nav-top .container { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
    .brand-lock { color: var(--pine-dark); font-weight: 600; }
    .nav-top a.tel { color: var(--pine-dark); font-weight: 600; min-height: 44px; display: inline-flex; align-items: center; }
    .nav-top .btn { min-height: 40px; padding: 0 16px; font-size: 13px; }
    .nav-main { min-height: 76px; }
    .nav-main .container {
      display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 76px;
    }
    .logo {
      display: flex; flex-direction: column; gap: 0; min-width: 44px;
      color: var(--pine-dark);
    }
    .logo-name {
      font-family: "Noto Serif SC", serif; font-size: 22px; font-weight: 700; line-height: 1.2;
    }
    .logo-sub { font-size: 12px; color: var(--muted); letter-spacing: .12em; }
    .nav-links { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
    .nav-links a {
      position: relative; color: var(--ink); font-size: 14px; font-weight: 500;
      min-height: 44px; display: inline-flex; align-items: center; padding: 0 10px;
    }
    .nav-links a:hover { color: var(--pine); }
    .nav-links a.active { color: var(--pine); }
    .nav-links a.active::after,
    .nav-links a:hover::after {
      content: ""; position: absolute; left: 10px; right: 10px; bottom: 8px; height: 2px;
      background: var(--grad-gold); border-radius: 2px;
    }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid var(--line);
      border-radius: 12px; background: var(--white);
      align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .menu-toggle span { display: block; width: 18px; height: 2px; background: var(--pine-dark); }
    .nav-drawer {
      position: fixed; inset: 0 0 0 auto; width: min(86vw, 360px);
      background: var(--chalk); z-index: 70; transform: translateX(100%);
      transition: transform .28s ease; box-shadow: var(--shadow-hover);
      padding: 24px 20px 32px; overflow-y: auto;
    }
    .nav-drawer.open { transform: translateX(0); }
    .nav-mask {
      position: fixed; inset: 0; background: rgba(16, 40, 32, .45); z-index: 60;
      opacity: 0; pointer-events: none; transition: opacity .28s ease;
    }
    .nav-mask.open { opacity: 1; pointer-events: auto; }
    .drawer-links { display: flex; flex-direction: column; gap: 4px; margin-top: 18px; }
    .drawer-links a {
      min-height: 48px; display: flex; align-items: center;
      padding: 0 12px; border-radius: 12px; color: var(--ink); font-weight: 500;
    }
    .drawer-links a:hover, .drawer-links a.active { background: rgba(42, 106, 84, .08); color: var(--pine); }
    .hero {
      position: relative; min-height: 680px; color: #fff; overflow: hidden;
    }
    .hero-slides, .hero-slide { position: absolute; inset: 0; }
    .hero-slide {
      background-size: cover; background-position: center;
      opacity: 0; transition: opacity .6s ease; pointer-events: none;
    }
    .hero-slide::after {
      content: ""; position: absolute; inset: 0; background: var(--grad-hero);
    }
    .hero-slide.is-active { opacity: 1; pointer-events: auto; z-index: 1; }
    .hero-inner {
      position: relative; z-index: 2;
      display: grid; grid-template-columns: 1.1fr .9fr; gap: 36px;
      align-items: center; min-height: 680px; padding: 48px 0 72px;
    }
    .hero-copy .brand-mark {
      font-family: "Noto Serif SC", serif; font-size: 15px; letter-spacing: .18em;
      color: var(--gold); margin-bottom: 10px;
    }
    .hero h1, .hero .hero-title { color: #fff; max-width: 16em; }
    .hero .lead { color: rgba(255,253,248,.88); max-width: 34em; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 18px; }
    .hero-demo {
      background: rgba(251, 248, 242, .12);
      border: 1px solid rgba(240, 201, 137, .35);
      border-radius: 28px; padding: 22px;
      box-shadow: 0 20px 48px rgba(0,0,0,.18);
    }
    .demo-title { font-weight: 600; margin-bottom: 14px; color: var(--gold); }
    .demo-row {
      display: flex; justify-content: space-between; gap: 10px;
      background: rgba(16, 40, 32, .35); border-radius: 16px;
      padding: 12px 14px; margin-bottom: 10px; font-size: 14px;
    }
    .demo-row span { color: rgba(255,253,248,.72); }
    .demo-row strong { color: #fff; font-weight: 600; }
    .demo-levels { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
    .lvl {
      min-width: 44px; min-height: 36px; padding: 0 10px;
      border-radius: 10px; border: 1px solid rgba(255,255,255,.2);
      display: inline-flex; align-items: center; justify-content: center;
      font-size: 12px; color: #fff;
    }
    .lvl.on { background: var(--grad-gold); color: var(--pine-deep); border-color: transparent; font-weight: 700; }
    .hero-ctrl {
      position: absolute; z-index: 3; bottom: 24px; left: 0; right: 0;
      display: flex; align-items: center; justify-content: center; gap: 12px;
    }
    .hero-arrow, .hero-pause {
      width: 44px; height: 44px; border-radius: 50%;
      border: 1px solid rgba(255,255,255,.4); background: rgba(16,40,32,.35); color: #fff;
    }
    .hero-dots { display: flex; gap: 8px; }
    .hero-dots button {
      width: 10px; height: 10px; border-radius: 50%; border: 0; padding: 0; min-width: 10px; min-height: 10px;
      background: rgba(255,255,255,.4);
    }
    .hero-dots button.is-active { background: var(--apricot); transform: scale(1.2); }
    .pain-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 40px; align-items: start; }
    .pain-item {
      display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center;
      background: var(--white); border: 1px solid var(--line); border-radius: 20px;
      padding: 18px 18px 18px 16px; margin-bottom: 12px;
      transition: border-color .2s ease, transform .2s ease;
    }
    .pain-item:hover { border-color: var(--pine); transform: translateX(4px); }
    .pain-no {
      width: 44px; height: 44px; border-radius: 50%;
      display: grid; place-items: center; color: #fff; font-weight: 700;
      background: var(--grad-pine);
    }
    .pain-item h3 { margin: 0 0 4px; font-size: 18px; }
    .pain-item p { margin: 0; color: var(--muted); font-size: 14px; }
    .split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
    .split img { width: 100%; border-radius: 28px; aspect-ratio: 4/3; object-fit: cover; box-shadow: var(--shadow); }
    .badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0; }
    .series-track {
      display: flex; gap: 12px; overflow-x: auto; padding-bottom: 8px;
      scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
    }
    .series-chip {
      scroll-snap-align: start; min-width: 210px; min-height: 92px;
      padding: 16px 18px; border-radius: 20px;
      background: var(--white); border: 1px solid var(--line);
      color: var(--ink); display: flex; flex-direction: column; justify-content: center;
    }
    .series-chip:hover { border-color: var(--pine); color: var(--pine-dark); }
    .series-chip small { color: var(--muted); font-size: 13px; }
    .timeline {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; position: relative;
    }
    .step {
      padding: 24px 22px 26px; position: relative;
    }
    .step-num {
      width: 48px; height: 48px; border-radius: 50%;
      display: grid; place-items: center; color: #fff; font-family: "Noto Serif SC", serif; font-size: 20px;
      background: var(--grad-pine); margin-bottom: 14px;
    }
    .adv-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
    }
    .adv-card:nth-child(1), .adv-card:nth-child(2) { grid-column: span 2; }
    .adv-card { position: relative; }
    .adv-card .badge { position: absolute; top: 14px; right: 14px; z-index: 2; }
    .course-grid {
      display: grid; grid-template-columns: 1.35fr 1fr; grid-template-rows: auto auto; gap: 18px;
    }
    .course-card:first-child { grid-row: span 2; }
    .course-meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 14px; color: var(--muted); font-size: 13px; }
    .course-meta span {
      border: 1px solid var(--line); border-radius: var(--radius-pill); padding: 4px 10px;
    }
    .coupon-hero {
      border-radius: 28px; padding: 28px;
      background: var(--grad-pine); color: #fff; margin-bottom: 22px;
      display: grid; grid-template-columns: 1.4fr auto; gap: 16px; align-items: center;
    }
    .coupon-hero h2, .coupon-hero .lead { color: #fff; }
    .coupon-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .ticket {
      position: relative; padding: 22px 22px 20px;
      background:
        radial-gradient(circle at left 58px, transparent 10px, #fffdf8 11px) left / 12px 100% no-repeat,
        radial-gradient(circle at right 58px, transparent 10px, #fffdf8 11px) right / 12px 100% no-repeat,
        #fffdf8;
      border: 1px dashed #d7b07a;
    }
    .ticket h3 { margin-bottom: 6px; }
    .ticket .price { font-family: "Noto Serif SC", serif; font-size: 28px; color: var(--apricot-deep); }
    .rules { margin-top: 22px; color: var(--muted); font-size: 14px; }
    .rules li { padding-left: 16px; position: relative; margin-bottom: 6px; }
    .rules li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--apricot); position: absolute; left: 0; top: 9px; }
    .dark-band {
      background: var(--pine-deep) center/cover no-repeat; color: #fff; padding: 92px 0;
      position: relative;
    }
    .dark-band::before {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(16,40,32,.92), rgba(16,40,32,.72) 48%, rgba(16,40,32,.55));
    }
    .dark-band .container { position: relative; z-index: 1; display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; }
    .dark-band h2, .dark-band p { color: #fff; }
    .case-grid { display: grid; gap: 16px; }
    .case-card {
      background: rgba(255,253,248,.08); border: 1px solid rgba(240,201,137,.28);
      border-radius: 22px; padding: 20px;
    }
    .stats {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px;
    }
    .stat {
      text-align: left; background: var(--white); border: 1px solid var(--line);
      border-radius: 22px; padding: 22px 18px;
    }
    .stat b {
      display: block; font-family: "Noto Serif SC", serif; font-size: 36px; line-height: 1.1;
      background: var(--grad-gold); -webkit-background-clip: text; background-clip: text; color: transparent;
    }
    .stat span { color: var(--muted); font-size: 13px; }
    .story-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 18px; }
    .story-side { display: grid; gap: 18px; }
    .reviews { display: grid; grid-template-columns: 1.2fr .9fr .9fr; gap: 18px; }
    .stars { color: var(--apricot-deep); letter-spacing: 2px; margin-bottom: 8px; }
    .who { color: var(--muted); font-size: 13px; margin-top: 12px; }
    .audience {
      display: grid; grid-template-columns: 1.2fr .8fr; grid-template-rows: auto auto; gap: 16px;
    }
    .slice { padding: 0; }
    .slice .card-body { padding: 24px; }
    .slice:nth-child(1) { grid-row: span 2; }
    .bound { font-size: 14px; color: var(--muted); }
    .news-grid { display: grid; grid-template-columns: 1.2fr .9fr; gap: 18px; }
    .news-list { display: grid; gap: 16px; }
    .news-date { color: var(--apricot-deep); font-size: 13px; font-weight: 600; }
    .metric-wall { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
    .metric-list { display: grid; gap: 10px; }
    .kv {
      display: flex; justify-content: space-between; gap: 12px; align-items: center;
      padding: 14px 16px; border-radius: 16px; background: var(--paper); border: 1px solid var(--line);
      min-height: 52px;
    }
    .kv b { color: var(--pine-dark); }
    .shields { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
    .shield {
      padding: 16px; border-radius: 18px; background: rgba(42,106,84,.06); border: 1px solid var(--line);
    }
    .faq-item { border: 1px solid var(--line); border-radius: 18px; background: var(--white); margin-bottom: 10px; overflow: hidden; }
    .faq-q {
      width: 100%; min-height: 56px; text-align: left; background: transparent; border: 0;
      padding: 14px 52px 14px 18px; font-size: 16px; font-weight: 600; color: var(--pine-dark); position: relative;
    }
    .faq-q::after {
      content: ""; position: absolute; right: 20px; top: 50%; width: 10px; height: 10px;
      border-right: 2px solid var(--pine); border-bottom: 2px solid var(--pine);
      transform: translateY(-70%) rotate(45deg); transition: transform .2s ease;
    }
    .faq-item.open .faq-q::after { transform: translateY(-20%) rotate(225deg); }
    .faq-a { max-height: 0; overflow: hidden; transition: max-height .28s ease; }
    .faq-item.open .faq-a { max-height: 260px; }
    .faq-a-inner { padding: 0 18px 16px; color: var(--muted); }
    .cta-band {
      padding: 92px 0; background: linear-gradient(180deg, #efe6d6, #f7f1e6);
    }
    .cta-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: start; }
    .promise li { margin-bottom: 8px; padding-left: 18px; position: relative; }
    .promise li::before { content: "●"; position: absolute; left: 0; color: var(--pine); font-size: 10px; top: 6px; }
    .form-card { padding: 26px; }
    .field { margin-bottom: 14px; }
    .field label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 14px; }
    .field input, .field select {
      width: 100%; min-height: 48px; border-radius: 14px; border: 1px solid var(--line);
      background: var(--paper); padding: 0 14px; color: var(--ink); font-size: 16px;
    }
    .field input:focus, .field select:focus { border-color: var(--pine); background: #fff; }
    .error { color: var(--danger); font-size: 13px; min-height: 18px; }
    .form-ok {
      display: none; padding: 14px 16px; border-radius: 14px; background: rgba(31,122,77,.1); color: var(--ok); margin-bottom: 12px;
    }
    .form-ok.show { display: block; }
    .site-footer {
      background: var(--pine-deep); color: rgba(255,253,248,.82); padding: 56px 0 24px;
    }
    .foot-grid { display: grid; grid-template-columns: 1.3fr .8fr .8fr 1fr; gap: 28px; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: rgba(255,253,248,.82); display: inline-flex; min-height: 36px; align-items: center; }
    .site-footer a:hover { color: var(--gold); }
    .copy { border-top: 1px solid rgba(255,255,255,.12); margin-top: 28px; padding-top: 16px; font-size: 13px; color: rgba(255,253,248,.6); }
    @media (max-width: 1280px) {
      .hero-inner { gap: 24px; }
      .stats { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 1024px) {
      .nav-links { display: none; }
      .menu-toggle { display: inline-flex; }
      .hero-inner, .pain-grid, .split, .dark-band .container, .story-grid, .cta-grid, .news-grid, .metric-wall, .foot-grid {
        grid-template-columns: 1fr;
      }
      .timeline, .coupon-grid, .reviews, .audience { grid-template-columns: 1fr 1fr; }
      .adv-grid { grid-template-columns: 1fr 1fr; }
      .adv-card:nth-child(1), .adv-card:nth-child(2) { grid-column: span 1; }
      .course-grid { grid-template-columns: 1fr; }
      .course-card:first-child { grid-row: auto; }
      .hero { min-height: 0; }
      .hero-inner { min-height: 0; padding-top: 36px; }
      .coupon-hero { grid-template-columns: 1fr; }
    }
    @media (max-width: 768px) {
      .container { width: min(100% - 32px, var(--container)); }
      .section, .dark-band, .cta-band { padding: 64px 0; }
      .nav-top .hide-sm { display: none; }
      .timeline, .coupon-grid, .reviews, .audience, .stats, .shields { grid-template-columns: 1fr; }
      .hero-actions, .nav-top .container { flex-wrap: wrap; }
      .logo-name { font-size: 18px; }
    }
    @media (max-width: 520px) {
      .pain-item { grid-template-columns: 44px 1fr; }
      .pain-item .badge { grid-column: 2; justify-self: start; }
      h1, .hero-title { font-size: 28px; }
      .stat b { font-size: 30px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }