/* roulang page: index */
:root {
      color-scheme: light;
      --ink: #252c2a;
      --ink-soft: #46514d;
      --muted: #707b76;
      --line: #dfe6e2;
      --paper: #ffffff;
      --canvas: #f5f7f5;
      --wash: #edf3f0;
      --green: #236b57;
      --green-dark: #194d40;
      --green-pale: #e3f0ea;
      --yellow: #f0c75e;
      --radius: 5px;
      --shadow: 0 10px 28px rgba(33, 55, 46, .07);
      --container: 1160px;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; scroll-padding-top: 90px; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--canvas);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }
    a { color: inherit; text-decoration: none; }
    button { font: inherit; }
    img { display: block; max-width: 100%; }
    a:focus-visible, button:focus-visible, summary:focus-visible {
      outline: 3px solid rgba(35, 107, 87, .38);
      outline-offset: 3px;
    }
    .container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
    .site-header {
      position: sticky;
      z-index: 20;
      top: 0;
      background: rgba(255,255,255,.96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(12px);
    }
    .header-inner {
      min-height: 76px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 11px;
      min-width: 0;
      color: var(--ink);
      font-size: 18px;
      font-weight: 750;
      line-height: 1.25;
    }
    .brand-mark {
      width: 35px;
      height: 35px;
      flex: 0 0 35px;
      display: grid;
      place-items: center;
      color: #fff;
      background: var(--green);
      border-radius: 4px;
    }
    .brand-mark svg { width: 17px; height: 17px; }
    .nav-wrap { display: flex; align-items: center; gap: 24px; }
    .nav-list {
      display: flex;
      align-items: center;
      gap: 7px;
      margin: 0;
      padding: 0;
      list-style: none;
    }
    .nav-link {
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 14px;
      color: var(--ink-soft);
      border-radius: 4px;
      font-size: 14px;
      font-weight: 600;
      transition: background .18s ease, color .18s ease;
    }
    .nav-link:hover { color: var(--green-dark); background: var(--wash); }
    .nav-link[aria-current="page"] { color: var(--green-dark); background: var(--green-pale); }
    .nav-toggle {
      display: none;
      width: 42px;
      height: 42px;
      padding: 0;
      align-items: center;
      justify-content: center;
      color: var(--ink);
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: 4px;
      cursor: pointer;
    }
    .nav-toggle svg { width: 20px; height: 20px; }

    main { overflow: clip; }
    .hero {
      position: relative;
      min-height: 416px;
      display: flex;
      align-items: center;
      overflow: hidden;
      background-color: #e7eee9;
      background-image:
        linear-gradient(90deg, rgba(245,247,245,.97) 0%, rgba(245,247,245,.91) 39%, rgba(245,247,245,.28) 75%, rgba(245,247,245,.08) 100%),
        url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=1900&q=85");
      background-position: center, center 46%;
      background-size: cover;
      border-bottom: 1px solid #dce4df;
    }
    .hero-inner { width: 100%; padding-block: 66px 62px; }
    .hero-copy { max-width: 700px; }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      margin: 0 0 17px;
      color: var(--green-dark);
      font-size: 13px;
      font-weight: 700;
    }
    .eyebrow::before {
      width: 24px;
      height: 3px;
      content: "";
      background: var(--yellow);
    }
    h1, h2, h3, p { margin-top: 0; }
    h1 {
      max-width: 720px;
      margin-bottom: 15px;
      color: var(--ink);
      font-size: 44px;
      font-weight: 760;
      line-height: 1.24;
    }
    .hero-copy > p {
      max-width: 630px;
      margin-bottom: 25px;
      color: #48534e;
      font-size: 17px;
      line-height: 1.85;
    }
    .button {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 0 19px;
      color: #fff;
      background: var(--green);
      border: 1px solid var(--green);
      border-radius: 4px;
      font-size: 14px;
      font-weight: 700;
      transition: background .18s ease, border-color .18s ease, transform .18s ease;
    }
    .button:hover { background: var(--green-dark); border-color: var(--green-dark); transform: translateY(-1px); }
    .button svg { width: 16px; height: 16px; }
    .hero-note {
      display: flex;
      align-items: center;
      gap: 9px;
      margin-top: 21px;
      color: var(--muted);
      font-size: 13px;
    }
    .hero-note span { width: 8px; height: 8px; background: var(--yellow); border-radius: 50%; }

    .content-section { padding: 62px 0; }
    .content-section--white { background: var(--paper); }
    .content-section--wash { background: var(--wash); }
    .section-heading {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 20px;
      margin-bottom: 26px;
    }
    .section-heading h2 {
      margin-bottom: 4px;
      color: var(--ink);
      font-size: 27px;
      line-height: 1.35;
      font-weight: 730;
    }
    .section-heading p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
    .section-kicker {
      display: block;
      margin-bottom: 7px;
      color: var(--green);
      font-size: 12px;
      font-weight: 750;
    }
    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      flex: 0 0 auto;
      color: var(--green-dark);
      font-size: 14px;
      font-weight: 700;
    }
    .text-link:hover { color: #123e33; text-decoration: underline; text-underline-offset: 4px; }
    .text-link svg { width: 15px; height: 15px; }

    .guide-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line); background: var(--paper); }
    .guide-step { min-height: 170px; padding: 23px 22px; border-right: 1px solid var(--line); }
    .guide-step:last-child { border-right: 0; }
    .step-number {
      display: inline-grid;
      width: 31px;
      height: 31px;
      place-items: center;
      margin-bottom: 16px;
      color: var(--green-dark);
      background: var(--green-pale);
      border-radius: 3px;
      font-size: 13px;
      font-weight: 800;
    }
    .guide-step h3, .topic-item h3, .experience-item h3, .device-panel h3 {
      margin-bottom: 7px;
      font-size: 16px;
      line-height: 1.45;
    }
    .guide-step p, .topic-item p, .experience-item p, .device-panel p {
      margin-bottom: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .category-tile {
      min-height: 116px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: 18px 19px 16px;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
    }
    .category-tile:hover { border-color: #9ab8ab; box-shadow: var(--shadow); transform: translateY(-2px); }
    .category-tile strong { color: var(--ink); font-size: 16px; }
    .category-tile span { display: flex; align-items: center; justify-content: space-between; color: var(--muted); font-size: 13px; }
    .category-tile svg { width: 16px; height: 16px; color: var(--green); }

    .topic-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 15px; }
    .topic-feature {
      min-height: 230px;
      display: flex;
      flex-direction: column;
      justify-content: end;
      padding: 27px;
      color: #fff;
      background:
        linear-gradient(0deg, rgba(22,39,32,.82), rgba(22,39,32,.12) 76%),
        url("https://images.unsplash.com/photo-1517604931442-7e0c8ed2963c?auto=format&fit=crop&w=1100&q=82") center 48% / cover;
      border-radius: var(--radius);
    }
    .topic-feature .tag { color: #fff; background: rgba(255,255,255,.17); border-color: rgba(255,255,255,.4); }
    .topic-feature h3 { max-width: 500px; margin: 13px 0 7px; font-size: 24px; line-height: 1.4; }
    .topic-feature p { max-width: 510px; margin: 0; color: rgba(255,255,255,.86); font-size: 14px; }
    .topic-side { display: grid; grid-template-rows: 1fr 1fr; gap: 15px; }
    .topic-item {
      padding: 21px 23px;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: var(--radius);
    }
    .topic-item .tag { margin-bottom: 12px; }
    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 25px;
      padding: 2px 9px;
      color: var(--green-dark);
      background: var(--green-pale);
      border: 1px solid #d1e4da;
      border-radius: 3px;
      font-size: 12px;
      font-weight: 650;
    }
    .tag--warm { color: #755718; background: #fff5d8; border-color: #f2e3af; }

    .update-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 44px; align-items: start; }
    .update-intro { padding-top: 6px; }
    .update-intro h2 { margin-bottom: 11px; font-size: 27px; line-height: 1.4; }
    .update-intro p { max-width: 330px; margin-bottom: 0; color: var(--muted); font-size: 14px; }
    .update-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
    .update-list li { border-bottom: 1px solid var(--line); }
    .update-row {
      display: grid;
      grid-template-columns: 105px 1fr auto;
      align-items: center;
      gap: 17px;
      min-height: 68px;
      padding: 12px 4px;
    }
    .update-row .tag { justify-self: start; }
    .update-row strong { font-size: 15px; font-weight: 650; }
    .update-row .row-arrow { width: 16px; height: 16px; color: var(--muted); transition: transform .18s ease; }
    .update-row:hover strong { color: var(--green-dark); }
    .update-row:hover .row-arrow { transform: translateX(3px); color: var(--green); }

    .experience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
    .experience-item { padding-top: 18px; border-top: 3px solid var(--green); }
    .experience-item .mini-index { display: block; margin-bottom: 11px; color: var(--muted); font-size: 12px; font-weight: 700; }

    .trouble-layout { display: grid; grid-template-columns: .72fr 1.28fr; gap: 52px; align-items: start; }
    .trouble-aside { padding: 25px; background: #e8f0eb; border-left: 4px solid var(--green); }
    .trouble-aside h2 { margin-bottom: 9px; font-size: 25px; line-height: 1.4; }
    .trouble-aside p { margin: 0; color: var(--ink-soft); font-size: 14px; }
    .trouble-list { margin: 0; padding: 0; list-style: none; }
    .trouble-list li { display: grid; grid-template-columns: 34px 1fr; gap: 14px; padding: 15px 0; border-bottom: 1px solid var(--line); }
    .trouble-list li:first-child { padding-top: 0; }
    .trouble-list li:last-child { border-bottom: 0; }
    .trouble-icon {
      width: 30px;
      height: 30px;
      display: grid;
      place-items: center;
      color: var(--green-dark);
      background: var(--green-pale);
      border-radius: 50%;
      font-size: 13px;
      font-weight: 800;
    }
    .trouble-list strong { display: block; margin-bottom: 3px; font-size: 15px; }
    .trouble-list p { margin: 0; color: var(--muted); font-size: 14px; }

    .quality-grid { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
    .quality-item { min-height: 150px; display: grid; grid-template-columns: 60px 1fr; gap: 17px; padding: 23px; background: var(--paper); border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
    .quality-mark {
      width: 52px;
      height: 52px;
      display: grid;
      place-items: center;
      color: var(--green);
      background: var(--green-pale);
      border-radius: 4px;
      font-size: 21px;
      font-weight: 750;
    }
    .quality-item h3 { margin: 1px 0 7px; font-size: 16px; }
    .quality-item p { margin: 0; color: var(--muted); font-size: 14px; }

    .device-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .device-panel { min-height: 180px; padding: 24px; background: rgba(255,255,255,.72); border: 1px solid #d7e2dc; border-radius: var(--radius); }
    .device-icon {
      width: 37px;
      height: 37px;
      display: grid;
      place-items: center;
      margin-bottom: 17px;
      color: var(--green-dark);
      background: #dcebe3;
      border-radius: 4px;
    }
    .device-icon svg { width: 19px; height: 19px; }

    .safety-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; }
    .safety-copy { max-width: 360px; }
    .safety-copy h2 { margin-bottom: 11px; font-size: 27px; line-height: 1.4; }
    .safety-copy p { margin: 0; color: var(--muted); font-size: 14px; }
    .safety-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; margin: 0; padding: 0; list-style: none; }
    .safety-list li { display: flex; gap: 11px; padding: 13px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 14px; }
    .check-mark { flex: 0 0 20px; width: 20px; height: 20px; display: grid; place-items: center; margin-top: 2px; color: var(--green-dark); background: var(--green-pale); border-radius: 50%; font-size: 12px; font-weight: 800; }

    .editor-layout { display: grid; grid-template-columns: .95fr 1.05fr; gap: 34px; align-items: stretch; }
    .editor-image {
      min-height: 310px;
      background: url("https://images.unsplash.com/photo-1489599849927-2ee91cede3ba?auto=format&fit=crop&w=1100&q=85") center / cover;
      border-radius: var(--radius);
    }
    .editor-content { display: flex; flex-direction: column; justify-content: center; padding: 8px 0; }
    .editor-content h2 { max-width: 470px; margin: 11px 0; font-size: 28px; line-height: 1.4; }
    .editor-content > p { max-width: 480px; margin-bottom: 18px; color: var(--muted); font-size: 15px; }
    .editor-points { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; margin: 0 0 20px; padding: 0; list-style: none; }
    .editor-points li { padding: 9px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 14px; }
    .editor-points li::before { content: "·"; padding-right: 9px; color: var(--green); font-size: 20px; font-weight: 800; }
    .inline-anchor { align-self: flex-start; color: var(--green-dark); font-size: 14px; font-weight: 700; }
    .inline-anchor:hover { text-decoration: underline; text-underline-offset: 4px; }

    .faq-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 34px; border-top: 1px solid var(--line); }
    .faq-item { padding: 18px 0; border-bottom: 1px solid var(--line); }
    .faq-item summary {
      position: relative;
      padding-right: 26px;
      color: var(--ink);
      font-size: 15px;
      font-weight: 700;
      cursor: pointer;
      list-style: none;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after { position: absolute; top: 0; right: 2px; content: "+"; color: var(--green); font-size: 20px; line-height: 1.2; }
    .faq-item[open] summary::after { content: "−"; }
    .faq-item p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }

    .closing-band { padding: 31px 0; background: #e8efeb; border-top: 1px solid #d7e1db; }
    .closing-inner { display: flex; align-items: center; justify-content: space-between; gap: 25px; }
    .closing-inner h2 { margin: 0 0 4px; font-size: 21px; }
    .closing-inner p { margin: 0; color: var(--muted); font-size: 14px; }

    .site-footer { padding: 43px 0 22px; color: #e4ebe7; background: #293530; }
    .footer-main { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; padding-bottom: 30px; }
    .footer-brand { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 13px; color: #fff; font-size: 17px; font-weight: 750; }
    .footer-brand .brand-mark { color: var(--green-dark); background: var(--yellow); }
    .footer-copy { max-width: 430px; margin: 0; color: #b9c5be; font-size: 13px; }
    .footer-nav { display: flex; justify-content: flex-end; flex-wrap: wrap; align-content: start; gap: 9px 20px; padding-top: 8px; }
    .footer-nav a { color: #d2ddd6; font-size: 13px; }
    .footer-nav a:hover { color: #fff; text-decoration: underline; text-underline-offset: 4px; }
    .footer-bottom { display: flex; justify-content: space-between; gap: 16px; padding-top: 17px; color: #aebbb3; border-top: 1px solid rgba(255,255,255,.14); font-size: 12px; }
    .footer-bottom p { margin: 0; overflow-wrap: anywhere; }

    @media (max-width: 1024px) {
      .container { width: min(var(--container), calc(100% - 40px)); }
      .nav-wrap { gap: 10px; }
      .nav-link { padding-inline: 10px; }
      .hero { min-height: 390px; }
      .guide-grid { grid-template-columns: repeat(2, 1fr); }
      .guide-step:nth-child(2) { border-right: 0; }
      .guide-step:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
      .category-grid { grid-template-columns: repeat(2, 1fr); }
      .trouble-layout, .safety-layout { gap: 30px; }
    }
    @media (max-width: 768px) {
      .container { width: min(var(--container), calc(100% - 36px)); }
      .header-inner { min-height: 68px; gap: 14px; }
      .brand { max-width: calc(100% - 56px); font-size: 16px; }
      .nav-toggle { display: inline-flex; flex: 0 0 42px; }
      .nav-wrap {
        position: absolute;
        top: calc(100% + 1px);
        left: 0;
        right: 0;
        display: none;
        padding: 10px 18px 16px;
        background: #fff;
        border-bottom: 1px solid var(--line);
        box-shadow: 0 12px 18px rgba(33,55,46,.08);
      }
      .nav-wrap.is-open { display: block; }
      .nav-list { display: grid; grid-template-columns: 1fr 1fr; gap: 5px; }
      .nav-link { min-height: 45px; }
      .hero { min-height: 390px; background-position: center, 58% center; }
      .hero-inner { padding-block: 52px 48px; }
      h1 { max-width: 610px; font-size: 37px; }
      .hero-copy > p { max-width: 560px; font-size: 16px; }
      .content-section { padding: 48px 0; }
      .section-heading { align-items: flex-start; }
      .section-heading h2 { font-size: 24px; }
      .topic-layout, .update-layout, .trouble-layout, .safety-layout, .editor-layout { grid-template-columns: 1fr; }
      .update-layout { gap: 20px; }
      .update-intro p { max-width: 560px; }
      .topic-feature { min-height: 235px; }
      .topic-side { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
      .experience-grid { gap: 18px; }
      .trouble-aside { max-width: none; }
      .device-grid { grid-template-columns: 1fr 1fr; }
      .safety-copy { max-width: 560px; }
      .editor-image { min-height: 260px; }
      .faq-list { gap: 0 22px; }
      .footer-main { grid-template-columns: 1fr; gap: 22px; }
      .footer-nav { justify-content: flex-start; }
    }
    @media (max-width: 520px) {
      .container { width: calc(100% - 32px); }
      .brand { gap: 8px; font-size: 14px; }
      .brand-mark { width: 32px; height: 32px; flex-basis: 32px; }
      .hero { min-height: 410px; background-image: linear-gradient(90deg, rgba(245,247,245,.96), rgba(245,247,245,.82)), url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=1100&q=82"); background-position: center, 58% center; }
      .hero-inner { padding-block: 46px 40px; }
      h1 { font-size: 32px; }
      .hero-copy > p { font-size: 15px; }
      .content-section { padding: 40px 0; }
      .section-heading { display: block; margin-bottom: 21px; }
      .section-heading .text-link { margin-top: 12px; }
      .section-heading h2 { font-size: 22px; }
      .guide-grid { grid-template-columns: 1fr; }
      .guide-step { min-height: 0; padding: 19px; border-right: 0; border-bottom: 1px solid var(--line); }
      .guide-step:nth-child(2) { border-bottom: 1px solid var(--line); }
      .guide-step:last-child { border-bottom: 0; }
      .step-number { margin-bottom: 10px; }
      .category-grid { grid-template-columns: 1fr 1fr; gap: 9px; }
      .category-tile { min-height: 108px; padding: 14px; }
      .category-tile strong { font-size: 14px; }
      .topic-side { grid-template-columns: 1fr; }
      .topic-feature { min-height: 215px; padding: 21px; }
      .topic-feature h3 { font-size: 21px; }
      .update-row { grid-template-columns: 82px 1fr 16px; gap: 9px; }
      .update-row strong { font-size: 14px; line-height: 1.55; }
      .update-row .tag { padding-inline: 7px; font-size: 11px; }
      .experience-grid { grid-template-columns: 1fr; gap: 22px; }
      .quality-grid { grid-template-columns: 1fr; }
      .quality-item { min-height: 0; padding: 19px; }
      .device-grid { grid-template-columns: 1fr; }
      .device-panel { min-height: 0; padding: 20px; }
      .safety-list { grid-template-columns: 1fr; }
      .editor-image { min-height: 205px; }
      .editor-content h2 { font-size: 23px; }
      .editor-points { grid-template-columns: 1fr; }
      .faq-list { grid-template-columns: 1fr; }
      .closing-inner { align-items: flex-start; flex-direction: column; }
      .closing-inner .button { width: 100%; }
      .footer-bottom { flex-direction: column; gap: 6px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
    }

/* roulang page: category1 */
:root {
 color-scheme: light;
 --ink: #252c2a;
 --ink-soft: #46514d;
 --muted: #707b76;
 --line: #dfe6e2;
 --paper: #ffffff;
 --canvas: #f5f7f5;
 --wash: #edf3f0;
 --green: #236b57;
 --green-dark: #194d40;
 --green-pale: #e3f0ea;
 --yellow: #f0c75e;
 --radius: 5px;
 --shadow: 0 10px 28px rgba(33, 55, 46, .07);
 --container: 1160px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
 margin: 0;
 color: var(--ink);
 background: var(--canvas);
 font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
 font-size: 16px;
 line-height: 1.75;
 -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
p { margin-top: 0; }
a:focus-visible, button:focus-visible, summary:focus-visible {
 outline: 3px solid rgba(35, 107, 87, .38);
 outline-offset: 3px;
}
.container { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
.site-header {
 position: sticky;
 z-index: 20;
 top: 0;
 background: rgba(255,255,255,.96);
 border-bottom: 1px solid var(--line);
 backdrop-filter: blur(12px);
}
.header-inner {
 min-height: 76px;
 display: flex;
 align-items: center;
 justify-content: space-between;
 gap: 28px;
}
.brand {
 display: inline-flex;
 align-items: center;
 gap: 11px;
 min-width: 0;
 color: var(--ink);
 font-size: 18px;
 font-weight: 750;
 line-height: 1.25;
}
.brand-mark {
 width: 35px;
 height: 35px;
 flex: 0 0 35px;
 display: grid;
 place-items: center;
 color: #fff;
 background: var(--green);
 border-radius: 4px;
}
.brand-mark svg { width: 17px; height: 17px; }
.nav-wrap { display: flex; align-items: center; gap: 24px; }
.nav-list {
 display: flex;
 align-items: center;
 gap: 7px;
 margin: 0;
 padding: 0;
 list-style: none;
}
.nav-link {
 display: inline-flex;
 align-items: center;
 min-height: 42px;
 padding: 0 14px;
 color: var(--ink-soft);
 border-radius: 4px;
 font-size: 14px;
 font-weight: 600;
 transition: background .18s ease, color .18s ease;
}
.nav-link:hover { color: var(--green-dark); background: var(--wash); }
.nav-link[aria-current="page"] { color: var(--green-dark); background: var(--green-pale); }
.nav-toggle {
 display: none;
 width: 42px;
 height: 42px;
 padding: 0;
 align-items: center;
 justify-content: center;
 color: var(--ink);
 background: var(--paper);
 border: 1px solid var(--line);
 border-radius: 4px;
 cursor: pointer;
}
.nav-toggle svg { width: 20px; height: 20px; }
main { overflow: clip; }
.container-main { padding-bottom: 0; }
.breadcrumb-band { padding: 22px 0 0; }
.breadcrumb {
 display: flex;
 align-items: center;
 gap: 9px;
 margin: 0;
 color: var(--muted);
 font-size: 13px;
}
.breadcrumb a { color: var(--green-dark); font-weight: 650; }
.breadcrumb a:hover { text-decoration: underline; text-underline-offset: 3px; }
.breadcrumb-separator { color: #9ba59f; }
.category-heading {
 padding: 33px 0 32px;
 border-bottom: 1px solid var(--line);
}
.category-heading-inner {
 display: grid;
 grid-template-columns: minmax(0, 1fr) minmax(220px, 320px);
 align-items: end;
 gap: 42px;
}
.eyebrow {
 display: inline-flex;
 align-items: center;
 gap: 9px;
 margin: 0 0 11px;
 color: var(--green-dark);
 font-size: 13px;
 font-weight: 700;
}
.eyebrow::before { width: 24px; height: 3px; content: ""; background: var(--yellow); }
.category-heading h1 {
 max-width: 760px;
 margin: 0 0 11px;
 color: var(--ink);
 font-size: 38px;
 line-height: 1.28;
 font-weight: 760;
}
.category-heading p {
 max-width: 720px;
 margin: 0;
 color: var(--ink-soft);
 font-size: 16px;
 line-height: 1.85;
}
.heading-note {
 padding: 16px 18px;
 color: var(--ink-soft);
 background: var(--paper);
 border-left: 3px solid var(--yellow);
 font-size: 13px;
 line-height: 1.7;
}
.heading-note strong { display: block; margin-bottom: 4px; color: var(--ink); font-size: 14px; }
.content-section { padding: 52px 0; }
.content-section--white { background: var(--paper); }
.content-section--wash { background: var(--wash); }
.content-section--line { border-top: 1px solid var(--line); }
.section-heading {
 display: flex;
 align-items: end;
 justify-content: space-between;
 gap: 20px;
 margin-bottom: 23px;
}
.section-heading h2 {
 margin: 0 0 4px;
 color: var(--ink);
 font-size: 25px;
 line-height: 1.4;
 font-weight: 730;
}
.section-heading p { margin: 0; color: var(--muted); font-size: 14px; }
.section-kicker { display: block; margin-bottom: 6px; color: var(--green); font-size: 12px; font-weight: 750; }
.text-link {
 display: inline-flex;
 align-items: center;
 gap: 7px;
 flex: 0 0 auto;
 color: var(--green-dark);
 font-size: 14px;
 font-weight: 700;
}
.text-link:hover { color: #123e33; text-decoration: underline; text-underline-offset: 4px; }
.text-link svg { width: 15px; height: 15px; }
.category-layout {
 display: grid;
 grid-template-columns: minmax(0, 1fr) 270px;
 gap: 34px;
 align-items: start;
}
.content-list { display: grid; gap: 12px; }
.content-item {
 display: grid;
 grid-template-columns: 54px minmax(0, 1fr) auto;
 align-items: start;
 gap: 17px;
 padding: 19px 20px;
 background: var(--paper);
 border: 1px solid var(--line);
 border-radius: var(--radius);
 transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
.content-item:hover {
 border-color: #b6cdc2;
 box-shadow: var(--shadow);
 transform: translateY(-1px);
}
.item-index {
 display: grid;
 place-items: center;
 width: 42px;
 height: 42px;
 color: var(--green-dark);
 background: var(--green-pale);
 border-radius: 4px;
 font-size: 14px;
 font-weight: 750;
}
.item-type {
 display: inline-flex;
 align-items: center;
 min-height: 23px;
 margin-bottom: 6px;
 padding: 1px 8px;
 color: var(--green-dark);
 background: #f0f5f2;
 border: 1px solid #e1eae5;
 border-radius: 3px;
 font-size: 11px;
 font-weight: 700;
}
.content-item h3 { margin: 0 0 5px; color: var(--ink); font-size: 17px; line-height: 1.5; font-weight: 720; }
.content-item p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.item-arrow { margin-top: 10px; color: var(--green); font-size: 18px; line-height: 1; }
.filter-aside {
 padding: 20px;
 background: #f8faf8;
 border: 1px solid var(--line);
 border-radius: var(--radius);
}
.filter-aside h3 { margin: 0 0 14px; font-size: 16px; line-height: 1.45; font-weight: 730; }
.filter-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
.filter-list li {
 display: flex;
 align-items: flex-start;
 gap: 10px;
 padding: 12px 0;
 color: var(--ink-soft);
 border-top: 1px solid var(--line);
 font-size: 13px;
 line-height: 1.65;
}
.filter-list li::before {
 width: 7px;
 height: 7px;
 flex: 0 0 7px;
 margin-top: 8px;
 content: "";
 background: var(--green);
 border-radius: 50%;
}
.filter-aside-note { margin: 13px 0 0; padding-top: 12px; color: var(--muted); border-top: 1px solid var(--line); font-size: 12px; }
.support-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.support-panel { padding: 0 0 0 18px; border-left: 2px solid var(--line); }
.support-panel h3 { margin: 0 0 12px; color: var(--ink); font-size: 17px; font-weight: 720; }
.support-panel ul { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; }
.support-panel li { position: relative; padding-left: 17px; color: var(--ink-soft); font-size: 14px; line-height: 1.7; }
.support-panel li::before { position: absolute; left: 0; top: 11px; width: 6px; height: 6px; content: ""; background: var(--yellow); border-radius: 50%; }
.support-panel a { color: var(--green-dark); font-weight: 650; }
.support-panel a:hover { text-decoration: underline; text-underline-offset: 3px; }
.notice-row {
 display: flex;
 align-items: flex-start;
 gap: 15px;
 padding: 19px 21px;
 background: var(--paper);
 border: 1px solid var(--line);
 border-radius: var(--radius);
}
.notice-mark {
 display: grid;
 place-items: center;
 flex: 0 0 30px;
 width: 30px;
 height: 30px;
 color: var(--ink);
 background: var(--yellow);
 border-radius: 50%;
 font-size: 15px;
 font-weight: 800;
}
.notice-row p { margin: 0; color: var(--ink-soft); font-size: 14px; line-height: 1.8; }
.return-band { padding: 38px 0; background: #e5eee9; border-top: 1px solid #d7e2dc; }
.return-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.return-inner h2 { margin: 0 0 5px; font-size: 21px; line-height: 1.4; font-weight: 730; }
.return-inner p { margin: 0; color: var(--muted); font-size: 14px; }
.button {
 display: inline-flex;
 align-items: center;
 justify-content: center;
 gap: 9px;
 min-height: 44px;
 padding: 0 18px;
 color: #fff;
 background: var(--green);
 border: 1px solid var(--green);
 border-radius: 4px;
 font-size: 14px;
 font-weight: 700;
 transition: background .18s ease, border-color .18s ease, transform .18s ease;
}
.button:hover { color: #fff; background: var(--green-dark); border-color: var(--green-dark); transform: translateY(-1px); }
.button svg { width: 16px; height: 16px; }
.site-footer { padding: 40px 0 18px; background: #fff; border-top: 1px solid var(--line); }
.footer-main { display: flex; justify-content: space-between; gap: 40px; padding-bottom: 28px; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-size: 17px; font-weight: 750; }
.footer-copy { max-width: 420px; margin: 12px 0 0; color: var(--muted); font-size: 13px; line-height: 1.75; }
.footer-nav { display: flex; flex-wrap: wrap; align-content: flex-start; gap: 12px 22px; padding-top: 5px; }
.footer-nav a { color: var(--ink-soft); font-size: 13px; font-weight: 600; }
.footer-nav a:hover { color: var(--green-dark); text-decoration: underline; text-underline-offset: 4px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 18px; padding-top: 16px; color: var(--muted); border-top: 1px solid var(--line); font-size: 12px; }
.footer-bottom p { margin: 0; }
@media (max-width: 1024px) {
 .category-layout { grid-template-columns: minmax(0, 1fr) 245px; gap: 22px; }
 .category-heading-inner { gap: 26px; }
}
@media (max-width: 768px) {
 .container { width: min(var(--container), calc(100% - 36px)); }
 .header-inner { min-height: 68px; }
 .nav-toggle { display: inline-flex; }
 .nav-wrap {
  display: none;
  position: absolute;
  top: calc(100% + 1px);
  left: 0;
  right: 0;
  padding: 10px 18px 15px;
  background: #fff;
  border-bottom: 1px solid var(--line);
  box-shadow: 0 12px 18px rgba(33,55,46,.06);
 }
 .nav-wrap.is-open { display: block; }
 .nav-list { display: grid; gap: 3px; }
 .nav-link { width: 100%; min-height: 44px; padding-inline: 12px; }
 .category-heading { padding: 27px 0; }
 .category-heading-inner { grid-template-columns: 1fr; gap: 18px; }
 .category-heading h1 { font-size: 32px; }
 .heading-note { max-width: 520px; }
 .content-section { padding: 42px 0; }
 .category-layout { grid-template-columns: 1fr; }
 .filter-aside { display: grid; grid-template-columns: 1fr 1fr; column-gap: 22px; }
 .filter-aside h3, .filter-aside-note { grid-column: 1 / -1; }
 .filter-list { grid-column: 1 / -1; grid-template-columns: 1fr 1fr; column-gap: 18px; }
 .support-grid { gap: 20px; }
}
@media (max-width: 520px) {
 .container { width: calc(100% - 32px); }
 .brand { gap: 8px; font-size: 15px; }
 .brand-mark { width: 32px; height: 32px; flex-basis: 32px; }
 .category-heading h1 { font-size: 28px; }
 .category-heading p { font-size: 15px; }
 .breadcrumb-band { padding-top: 16px; }
 .section-heading { align-items: flex-start; flex-direction: column; gap: 8px; }
 .section-heading h2 { font-size: 22px; }
 .content-item { grid-template-columns: 38px minmax(0, 1fr); gap: 12px; padding: 15px 14px; }
 .item-index { width: 36px; height: 36px; font-size: 12px; }
 .content-item h3 { font-size: 16px; }
 .item-arrow { display: none; }
 .filter-aside { display: block; padding: 17px; }
 .filter-list { display: grid; grid-template-columns: 1fr; }
 .support-grid { grid-template-columns: 1fr; gap: 22px; }
 .return-inner { align-items: flex-start; flex-direction: column; }
 .footer-main { flex-direction: column; gap: 24px; }
 .footer-nav { gap: 10px 18px; }
 .footer-bottom { flex-direction: column; gap: 5px; }
}
@media (prefers-reduced-motion: reduce) {
 html { scroll-behavior: auto; }
 *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}