/* roulang page: index */
:root{
      --color-primary:#39a889;
      --color-primary-dark:#1d7f69;
      --color-primary-soft:#e7f7f2;
      --color-sand:#f3eadb;
      --color-clay:#d9a373;
      --color-ink:#26302f;
      --color-text:#4b5a57;
      --color-muted:#7c8b87;
      --color-line:#dbe7e2;
      --color-card:#ffffff;
      --color-bg:#f8faf7;
      --color-footer:#26302f;
      --gradient-main:linear-gradient(135deg,#ffffff 0%,#e8f8f2 46%,#f5ead9 100%);
      --gradient-strong:linear-gradient(135deg,#39a889 0%,#77cdb4 55%,#d9a373 120%);
      --shadow-soft:0 18px 55px rgba(39,84,75,.12);
      --shadow-card:0 12px 34px rgba(38,48,47,.08);
      --shadow-hover:0 22px 55px rgba(39,84,75,.18);
      --radius-xl:34px;
      --radius-lg:26px;
      --radius-md:18px;
      --radius-pill:999px;
      --container:1220px;
      --speed:220ms ease;
      --font-cn:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font-cn);
      color:var(--color-text);
      background:
        radial-gradient(circle at 4% 4%,rgba(57,168,137,.12),transparent 30%),
        radial-gradient(circle at 95% 18%,rgba(217,163,115,.13),transparent 26%),
        var(--color-bg);
      line-height:1.78;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color var(--speed),transform var(--speed),border-color var(--speed),background var(--speed)}
    a:hover{color:var(--color-primary-dark)}
    img{max-width:100%;display:block}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    section{position:relative}
    ul{margin:0;padding:0;list-style:none}
    .site-container{width:min(calc(100% - 40px),var(--container));margin:0 auto}
    .skip-link{
      position:absolute;left:-999px;top:10px;background:#fff;color:var(--color-ink);
      padding:10px 14px;border-radius:12px;z-index:1000
    }
    .skip-link:focus{left:16px}
    .site-header{
      position:sticky;top:0;z-index:50;
      background:rgba(248,250,247,.88);
      backdrop-filter:saturate(160%) blur(18px);
      border-bottom:1px solid rgba(219,231,226,.86);
    }
    .nav-wrap{
      width:min(calc(100% - 40px),var(--container));
      margin:0 auto;
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;
      font-weight:800;color:var(--color-ink);letter-spacing:-.02em;
      white-space:nowrap;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:16px;
      background:var(--gradient-strong);
      box-shadow:0 10px 24px rgba(57,168,137,.25);
      display:grid;place-items:center;position:relative;overflow:hidden;
    }
    .brand-mark:before,.brand-mark:after{
      content:"";position:absolute;border-radius:999px;background:rgba(255,255,255,.8)
    }
    .brand-mark:before{width:20px;height:3px;top:13px;left:11px}
    .brand-mark:after{width:16px;height:16px;bottom:8px;right:7px;background:rgba(255,255,255,.46)}
    .brand span{font-size:18px}
    .main-nav{display:flex;align-items:center;gap:8px}
    .main-nav a{
      position:relative;
      padding:10px 16px;
      border-radius:var(--radius-pill);
      font-size:15px;
      font-weight:650;
      color:var(--color-text);
    }
    .main-nav a:after{
      content:"";position:absolute;left:18px;right:18px;bottom:6px;height:2px;
      border-radius:99px;background:transparent;transform:scaleX(.4);
      transition:background var(--speed),transform var(--speed)
    }
    .main-nav a:hover{background:rgba(57,168,137,.08);color:var(--color-primary-dark)}
    .main-nav a.active{color:var(--color-primary-dark);background:rgba(57,168,137,.10)}
    .main-nav a.active:after{background:var(--color-primary);transform:scaleX(1)}
    .nav-cta{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;border:1px solid var(--color-line);background:#fff;border-radius:14px;
      width:46px;height:46px;align-items:center;justify-content:center;color:var(--color-ink);
      box-shadow:0 8px 20px rgba(38,48,47,.06);
    }
    .hamburger,.hamburger:before,.hamburger:after{
      display:block;width:20px;height:2px;background:currentColor;border-radius:99px;transition:var(--speed)
    }
    .hamburger{position:relative}
    .hamburger:before,.hamburger:after{content:"";position:absolute;left:0}
    .hamburger:before{top:-7px}.hamburger:after{top:7px}
    .menu-open .hamburger{background:transparent}
    .menu-open .hamburger:before{top:0;transform:rotate(45deg)}
    .menu-open .hamburger:after{top:0;transform:rotate(-45deg)}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;padding:12px 20px;border-radius:var(--radius-pill);
      font-weight:750;border:1px solid transparent;line-height:1.2;
      transition:transform var(--speed),box-shadow var(--speed),background var(--speed),border-color var(--speed),color var(--speed);
      user-select:none;
    }
    .btn-primary{
      background:var(--gradient-strong);
      color:#fff;
      box-shadow:0 13px 28px rgba(57,168,137,.26);
    }
    .btn-primary:hover{color:#fff;transform:translateY(-3px);box-shadow:0 18px 38px rgba(57,168,137,.34)}
    .btn-secondary{
      background:rgba(255,255,255,.78);
      border-color:var(--color-line);
      color:var(--color-ink);
      box-shadow:0 10px 24px rgba(38,48,47,.06);
    }
    .btn-secondary:hover{background:var(--color-primary-soft);border-color:rgba(57,168,137,.35);transform:translateY(-2px)}
    .btn-ghost{
      color:var(--color-primary-dark);font-weight:750;display:inline-flex;align-items:center;gap:8px;
      padding:8px 0;border-bottom:1px solid rgba(57,168,137,.35)
    }
    .btn-ghost:hover{gap:13px;color:var(--color-primary-dark)}
    .btn:focus-visible,.btn-ghost:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(57,168,137,.28);
      outline-offset:3px;
    }
    .hero{padding:84px 0 68px;overflow:hidden}
    .hero:before{
      content:"";position:absolute;inset:24px 0 auto auto;width:520px;height:520px;
      background:radial-gradient(circle,rgba(57,168,137,.18),transparent 68%);
      pointer-events:none;
    }
    .hero-shell{
      background:var(--gradient-main);
      border:1px solid rgba(219,231,226,.85);
      border-radius:42px;
      padding:56px;
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      position:relative;
    }
    .hero-shell:after{
      content:"";position:absolute;right:-70px;bottom:-90px;width:260px;height:260px;
      border-radius:50%;background:rgba(217,163,115,.16)
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:var(--radius-pill);
      background:rgba(255,255,255,.78);
      border:1px solid rgba(57,168,137,.18);
      color:var(--color-primary-dark);
      font-size:14px;font-weight:750;
      box-shadow:0 8px 18px rgba(57,168,137,.08);
    }
    .eyebrow:before{
      content:"";width:8px;height:8px;border-radius:50%;background:var(--color-primary);
      box-shadow:0 0 0 5px rgba(57,168,137,.12)
    }
    h1,h2,h3,h4{color:var(--color-ink);line-height:1.15;margin:0;font-weight:800;letter-spacing:-.035em}
    h1{font-size:clamp(38px,5.2vw,66px);margin-top:22px;margin-bottom:22px;max-width:690px}
    .hero-lead{
      font-size:18px;line-height:1.9;color:#52615e;max-width:670px;margin:0 0 30px;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px}
    .trust-row{display:flex;flex-wrap:wrap;gap:10px}
    .mini-tag{
      display:inline-flex;align-items:center;gap:7px;
      padding:8px 12px;border-radius:var(--radius-pill);
      background:rgba(255,255,255,.68);
      color:var(--color-text);
      border:1px solid rgba(219,231,226,.8);
      font-size:14px;font-weight:650;
    }
    .mini-tag i{width:7px;height:7px;border-radius:50%;background:var(--color-clay);display:inline-block}
    .visual-card{
      position:relative;
      z-index:2;
      background:rgba(255,255,255,.82);
      border:1px solid rgba(219,231,226,.85);
      border-radius:36px;
      padding:24px;
      box-shadow:var(--shadow-card);
      min-height:460px;
      overflow:hidden;
    }
    .visual-top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:22px}
    .visual-title{font-size:18px;font-weight:800;color:var(--color-ink)}
    .visual-sub{font-size:13px;color:var(--color-muted);margin-top:4px}
    .status-pill{
      padding:7px 12px;border-radius:999px;background:var(--color-primary-soft);
      color:var(--color-primary-dark);font-weight:800;font-size:13px;white-space:nowrap
    }
    .space-illustration{
      border-radius:30px;
      background:
        linear-gradient(135deg,rgba(57,168,137,.12),rgba(243,234,219,.72)),
        repeating-linear-gradient(90deg,rgba(255,255,255,.38) 0,rgba(255,255,255,.38) 1px,transparent 1px,transparent 34px);
      min-height:230px;
      border:1px solid rgba(219,231,226,.7);
      padding:24px;
      display:grid;grid-template-columns:1fr 1fr;gap:16px;
      position:relative;
    }
    .space-unit{
      border-radius:24px;background:rgba(255,255,255,.76);
      border:1px solid rgba(255,255,255,.9);
      padding:18px;display:flex;flex-direction:column;justify-content:space-between;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.8)
    }
    .line-icon{
      width:48px;height:48px;border-radius:18px;background:#fff;border:1px solid rgba(57,168,137,.18);
      display:grid;place-items:center;color:var(--color-primary-dark)
    }
    .line-icon svg{width:28px;height:28px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
    .unit-name{font-size:15px;font-weight:800;color:var(--color-ink);margin-top:14px}
    .unit-desc{font-size:13px;color:var(--color-muted);line-height:1.6;margin-top:4px}
    .visual-metrics{
      display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:16px;
    }
    .metric-chip{
      border-radius:24px;
      border:1px solid rgba(219,231,226,.82);
      background:#fff;
      padding:18px;
    }
    .metric-chip strong{display:block;color:var(--color-ink);font-size:28px;line-height:1;font-weight:850}
    .metric-chip span{font-size:13px;color:var(--color-muted);display:block;margin-top:8px}
    .section{padding:96px 0}
    .section-alt{
      background:linear-gradient(180deg,rgba(255,255,255,.52),rgba(243,234,219,.38));
      border-top:1px solid rgba(219,231,226,.65);
      border-bottom:1px solid rgba(219,231,226,.65);
    }
    .section-header{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:38px}
    .section-title{max-width:720px}
    .section-title .eyebrow{margin-bottom:14px}
    h2{font-size:clamp(30px,3.6vw,44px);margin-bottom:14px}
    .section-desc{font-size:17px;color:var(--color-muted);max-width:650px;margin:0;line-height:1.85}
    .service-layout{align-items:stretch}
    .big-card,.card{
      background:var(--color-card);
      border:1px solid rgba(219,231,226,.86);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-card);
      transition:transform var(--speed),box-shadow var(--speed),border-color var(--speed);
    }
    .big-card:hover,.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:rgba(57,168,137,.28)}
    .big-card{height:100%;padding:34px;position:relative;overflow:hidden}
    .big-card:after{
      content:"";position:absolute;right:-60px;top:-60px;width:180px;height:180px;border-radius:50%;
      background:rgba(57,168,137,.12)
    }
    .big-card h3{font-size:28px;margin:20px 0 12px}
    .big-card p{font-size:16px;color:var(--color-muted);margin:0 0 22px;line-height:1.85}
    .feature-list{display:grid;gap:12px;margin-top:24px}
    .feature-list li{
      display:flex;gap:10px;align-items:flex-start;
      padding:12px 14px;border-radius:18px;background:#f7fbf9;border:1px solid rgba(219,231,226,.72);
      color:var(--color-text);font-weight:650;
    }
    .check{
      width:20px;height:20px;flex:0 0 20px;border-radius:50%;background:var(--color-primary-soft);
      color:var(--color-primary-dark);display:grid;place-items:center;font-size:13px;font-weight:900;margin-top:2px
    }
    .service-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .service-card{padding:24px;min-height:205px}
    .service-card:nth-child(2){margin-top:28px}
    .service-card h3{font-size:21px;margin:18px 0 10px}
    .service-card p{color:var(--color-muted);margin:0 0 16px;line-height:1.75}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px}
    .tag{
      display:inline-flex;padding:6px 10px;border-radius:999px;background:#f6eee2;color:#8b6443;
      font-size:13px;font-weight:750;border:1px solid rgba(217,163,115,.18)
    }
    .data-panel{
      border-radius:38px;
      background:linear-gradient(135deg,#ffffff,rgba(231,247,242,.95));
      border:1px solid rgba(219,231,226,.9);
      box-shadow:var(--shadow-soft);
      padding:34px;
    }
    .data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
    .data-item{
      padding:18px 24px;border-right:1px solid rgba(219,231,226,.9);
    }
    .data-item:last-child{border-right:0}
    .data-item strong{display:flex;align-items:flex-end;gap:4px;font-size:42px;line-height:.95;color:var(--color-ink);font-weight:850;letter-spacing:-.04em}
    .data-item em{font-size:15px;color:var(--color-primary-dark);font-style:normal;font-weight:800;margin-bottom:4px}
    .data-item span{display:block;margin-top:12px;color:var(--color-muted);font-size:14px;line-height:1.65}
    .scenario-wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:22px;align-items:stretch}
    .scenario-main{
      padding:28px;border-radius:var(--radius-xl);background:#fff;border:1px solid rgba(219,231,226,.86);box-shadow:var(--shadow-card);
      display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:center;
    }
    .abstract-image{
      min-height:310px;border-radius:30px;overflow:hidden;position:relative;
      background:
        linear-gradient(145deg,rgba(57,168,137,.18),rgba(217,163,115,.18)),
        repeating-linear-gradient(135deg,rgba(255,255,255,.7) 0,rgba(255,255,255,.7) 2px,transparent 2px,transparent 18px);
      border:1px solid rgba(219,231,226,.8)
    }
    .abstract-image:before{
      content:"";position:absolute;left:34px;right:34px;bottom:34px;height:74px;border-radius:24px;background:rgba(255,255,255,.72);box-shadow:0 18px 30px rgba(38,48,47,.08)
    }
    .abstract-image:after{
      content:"";position:absolute;left:54px;bottom:58px;width:42%;height:12px;border-radius:99px;background:var(--color-primary)
    }
    .scenario-content h3{font-size:28px;margin:14px 0}
    .scenario-content p{color:var(--color-muted);margin:0 0 18px}
    .point-list{display:grid;gap:10px;margin-bottom:20px}
    .point-list li{display:flex;gap:10px;align-items:flex-start;color:var(--color-text)}
    .scenario-side{display:grid;gap:18px}
    .scenario-card{padding:24px;border-radius:var(--radius-lg)}
    .scenario-card h3{font-size:21px;margin:12px 0 8px}
    .scenario-card p{margin:0;color:var(--color-muted);line-height:1.75}
    .process{
      position:relative;
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:16px;
    }
    .step-card{
      padding:24px 20px;border-radius:28px;background:#fff;border:1px solid rgba(219,231,226,.86);
      box-shadow:var(--shadow-card);position:relative;overflow:hidden;
    }
    .step-card:nth-child(even){margin-top:34px}
    .step-num{
      width:42px;height:42px;border-radius:16px;background:var(--color-primary-soft);
      color:var(--color-primary-dark);display:grid;place-items:center;font-weight:900;margin-bottom:20px
    }
    .step-card h3{font-size:20px;margin-bottom:10px}
    .step-card p{margin:0;color:var(--color-muted);font-size:15px;line-height:1.75}
    .material-band{
      border-radius:38px;padding:34px;background:var(--color-footer);color:#dce7e3;overflow:hidden;position:relative;
    }
    .material-band:before{
      content:"";position:absolute;right:-130px;top:-160px;width:380px;height:380px;border-radius:50%;background:rgba(57,168,137,.24)
    }
    .material-band h2,.material-band h3{color:#fff}
    .material-band .section-desc{color:#c8d5d1}
    .material-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
    .material-card{
      padding:22px;border-radius:24px;background:rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(8px);
    }
    .material-card p{margin:8px 0 0;color:#c8d5d1;font-size:15px;line-height:1.7}
    .proof-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:22px;align-items:stretch}
    .rank-card{
      padding:28px;border-radius:var(--radius-xl);background:linear-gradient(180deg,#fff,#f6fbf9);
      border:1px solid rgba(219,231,226,.86);box-shadow:var(--shadow-card)
    }
    .rank-list{display:grid;gap:12px;margin-top:20px}
    .rank-list li{
      display:grid;grid-template-columns:34px 1fr auto;gap:12px;align-items:center;
      padding:14px;border-radius:18px;background:#fff;border:1px solid rgba(219,231,226,.72)
    }
    .rank-no{
      width:34px;height:34px;border-radius:14px;background:var(--color-primary-soft);
      color:var(--color-primary-dark);display:grid;place-items:center;font-weight:900
    }
    .rank-list strong{color:var(--color-ink);font-size:15px}
    .rank-list span{font-size:13px;color:var(--color-muted)}
    .score{font-weight:850;color:var(--color-clay)}
    .editorial-card{
      min-height:100%;padding:34px;border-radius:var(--radius-xl);background:
      linear-gradient(135deg,rgba(255,255,255,.9),rgba(243,234,219,.58));
      border:1px solid rgba(219,231,226,.86);box-shadow:var(--shadow-card)
    }
    .editorial-card p{font-size:17px;color:var(--color-text);line-height:1.9;margin:16px 0 0}
    .quote{
      margin-top:24px;padding:20px;border-left:4px solid var(--color-primary);
      background:rgba(255,255,255,.7);border-radius:0 18px 18px 0;color:var(--color-muted)
    }
    .faq-wrap{max-width:900px;margin:0 auto}
    .accordion{background:transparent}
    .faq-item{
      margin-bottom:14px;border-radius:24px;overflow:hidden;
      border:1px solid rgba(219,231,226,.86);background:#fff;box-shadow:0 10px 26px rgba(38,48,47,.05)
    }
    .accordion-title{
      border:0!important;color:var(--color-ink)!important;font-size:17px;font-weight:800;
      padding:22px 56px 22px 24px;line-height:1.45;background:#fff!important;
    }
    .accordion-title:before{right:24px;color:var(--color-primary-dark);font-size:22px;margin-top:-12px}
    .accordion-content{
      border:0!important;border-top:1px solid rgba(219,231,226,.72)!important;
      color:var(--color-muted);line-height:1.85;padding:20px 24px 24px;background:#fff!important;
    }
    .cta-card{
      border-radius:40px;background:var(--gradient-main);
      border:1px solid rgba(219,231,226,.9);
      box-shadow:var(--shadow-soft);
      padding:42px;
      overflow:hidden;
    }
    .contact-form{
      background:rgba(255,255,255,.78);
      border:1px solid rgba(219,231,226,.86);
      border-radius:30px;padding:24px;box-shadow:var(--shadow-card)
    }
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .form-field{margin-bottom:14px}
    .form-field.full{grid-column:1/-1}
    .form-field label{display:block;font-size:13px;font-weight:800;color:var(--color-ink);margin-bottom:7px}
    .form-field input,.form-field select,.form-field textarea{
      width:100%;border:1px solid var(--color-line);border-radius:16px;background:#fff;
      min-height:52px;padding:12px 14px;color:var(--color-ink);
      box-shadow:none;transition:border-color var(--speed),box-shadow var(--speed),background var(--speed);
    }
    .form-field textarea{min-height:104px;resize:vertical}
    .form-field input::placeholder,.form-field textarea::placeholder{color:#a6b2af}
    .form-field input:focus,.form-field select:focus,.form-field textarea:focus{
      border-color:rgba(57,168,137,.72);box-shadow:0 0 0 4px rgba(57,168,137,.12);background:#fff
    }
    .form-note{font-size:13px;color:var(--color-muted);margin:10px 0 0}
    .site-footer{
      background:var(--color-footer);
      color:#d7e2de;
      padding:62px 0 28px;
      margin-top:20px;
    }
    .footer-grid{display:grid;grid-template-columns:1.3fr .7fr .8fr;gap:36px;margin-bottom:38px}
    .footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:850;font-size:19px;margin-bottom:14px}
    .footer-brand .brand-mark{width:40px;height:40px}
    .footer-desc{max-width:480px;color:#b9c8c3;margin:0;line-height:1.85}
    .footer-title{color:#fff;font-weight:850;margin-bottom:14px}
    .footer-links{display:grid;gap:10px}
    .footer-links a{color:#c7d5d1;width:max-content;border-bottom:1px solid transparent}
    .footer-links a:hover{color:#fff;border-color:var(--color-primary);transform:translateX(3px)}
    .footer-info{display:grid;gap:10px;color:#c7d5d1}
    .copyright{
      border-top:1px solid rgba(255,255,255,.12);
      padding-top:22px;
      display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
      color:#aab9b5;font-size:14px;
    }
    @media (max-width:1024px){
      .nav-wrap{min-height:72px}
      .hero-shell{padding:40px}
      .section{padding:78px 0}
      .service-grid{grid-template-columns:1fr}
      .service-card:nth-child(2){margin-top:0}
      .data-grid{grid-template-columns:repeat(2,1fr)}
      .data-item:nth-child(2){border-right:0}
      .data-item:nth-child(1),.data-item:nth-child(2){border-bottom:1px solid rgba(219,231,226,.9)}
      .scenario-wrap,.proof-grid{grid-template-columns:1fr}
      .process{grid-template-columns:repeat(3,1fr)}
      .step-card:nth-child(even){margin-top:0}
      .material-grid{grid-template-columns:1fr}
    }
    @media (max-width:768px){
      .site-container,.nav-wrap{width:min(calc(100% - 28px),var(--container))}
      .menu-toggle{display:flex}
      .main-nav{
        position:absolute;left:14px;right:14px;top:78px;
        display:none;flex-direction:column;align-items:stretch;gap:6px;
        background:rgba(255,255,255,.96);border:1px solid var(--color-line);
        border-radius:24px;padding:12px;box-shadow:var(--shadow-soft)
      }
      .main-nav.is-open{display:flex}
      .main-nav a{padding:14px 16px}
      .nav-cta .btn{display:none}
      .hero{padding:34px 0 54px}
      .hero-shell{padding:28px;border-radius:30px}
      .hero-actions .btn{width:100%}
      .visual-card{min-height:auto;margin-top:24px}
      .space-illustration{grid-template-columns:1fr;min-height:auto}
      .section{padding:62px 0}
      .section-header{display:block}
      .section-desc{font-size:16px}
      .service-layout .cell + .cell{margin-top:18px}
      .data-panel{padding:18px;border-radius:28px}
      .data-grid{grid-template-columns:1fr}
      .data-item{border-right:0!important;border-bottom:1px solid rgba(219,231,226,.9)!important;padding:20px 12px}
      .data-item:last-child{border-bottom:0!important}
      .scenario-main{grid-template-columns:1fr;padding:20px}
      .abstract-image{min-height:220px}
      .process{grid-template-columns:1fr}
      .material-band{padding:24px;border-radius:30px}
      .footer-grid{grid-template-columns:1fr;gap:26px}
      .cta-card{padding:26px;border-radius:30px}
      .form-grid{grid-template-columns:1fr}
    }
    @media (max-width:480px){
      .brand span{font-size:16px}
      .brand-mark{width:38px;height:38px;border-radius:14px}
      h1{font-size:36px}
      h2{font-size:30px}
      .hero-lead{font-size:16px}
      .visual-metrics{grid-template-columns:1fr}
      .service-card,.big-card{padding:22px;border-radius:26px}
      .rank-list li{grid-template-columns:34px 1fr}
      .score{grid-column:2}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: category1 */
:root{
      --font-main: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      --color-primary:#2f9b88;
      --color-primary-dark:#19796b;
      --color-primary-soft:#e2f5ef;
      --color-mint:#bdeadc;
      --color-sand:#f2e8d8;
      --color-clay:#d9b98f;
      --color-ink:#26322f;
      --color-text:#3f4b48;
      --color-muted:#6d7a76;
      --color-light:#f7faf7;
      --color-white:#ffffff;
      --color-line:rgba(61,122,107,.18);
      --color-footer:#24302d;
      --gradient-hero:linear-gradient(135deg,#ffffff 0%,#ecf8f2 45%,#f5ead7 100%);
      --gradient-primary:linear-gradient(135deg,#2f9b88 0%,#78cdb6 100%);
      --gradient-soft:linear-gradient(135deg,rgba(226,245,239,.95) 0%,rgba(250,244,234,.95) 100%);
      --shadow-soft:0 22px 60px rgba(38,50,47,.10);
      --shadow-card:0 16px 44px rgba(47,95,86,.12);
      --radius-xl:34px;
      --radius-lg:26px;
      --radius-md:18px;
      --radius-sm:14px;
      --container:1220px;
      --transition:220ms ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:var(--font-main);
      color:var(--color-text);
      background:
        radial-gradient(circle at 8% 0%, rgba(189,234,220,.45), transparent 28%),
        radial-gradient(circle at 92% 12%, rgba(242,232,216,.75), transparent 32%),
        var(--color-light);
      line-height:1.78;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none;transition:color var(--transition),transform var(--transition),border-color var(--transition),background var(--transition)}
    img{max-width:100%;height:auto;display:block}
    button,input,select,textarea{font-family:inherit}
    button{cursor:pointer}
    ul{margin:0;padding:0;list-style:none}
    section{position:relative}
    .site-container{
      width:min(calc(100% - 40px), var(--container));
      margin:0 auto;
    }
    .section-pad{padding:96px 0}
    .section-pad-sm{padding:72px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid var(--color-line);
      border-radius:999px;
      background:rgba(255,255,255,.72);
      color:var(--color-primary-dark);
      font-size:14px;
      font-weight:700;
      letter-spacing:.02em;
    }
    .eyebrow::before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--color-primary);
      box-shadow:0 0 0 5px rgba(47,155,136,.12);
    }
    .section-head{
      display:flex;
      justify-content:space-between;
      gap:28px;
      align-items:flex-end;
      margin-bottom:34px;
    }
    .section-head h2{
      margin:14px 0 0;
      color:var(--color-ink);
      font-size:clamp(30px,4vw,44px);
      line-height:1.16;
      letter-spacing:-.03em;
      font-weight:800;
    }
    .section-head p{
      max-width:620px;
      margin:0;
      color:var(--color-muted);
      font-size:17px;
    }

    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(247,250,247,.86);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(61,122,107,.14);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      color:var(--color-ink);
      font-weight:800;
      font-size:19px;
      letter-spacing:-.02em;
      white-space:nowrap;
    }
    .brand-mark{
      width:34px;
      height:34px;
      border-radius:12px;
      display:inline-block;
      background:
        linear-gradient(135deg,rgba(255,255,255,.92),rgba(255,255,255,.35)),
        var(--gradient-primary);
      box-shadow:0 10px 28px rgba(47,155,136,.24);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark::after{
      content:"";
      position:absolute;
      width:14px;
      height:14px;
      left:10px;
      top:10px;
      border-radius:5px;
      border:2px solid rgba(255,255,255,.92);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      gap:22px;
    }
    .main-nav{
      display:flex;
      align-items:center;
      gap:6px;
      padding:6px;
      border:1px solid rgba(61,122,107,.14);
      border-radius:999px;
      background:rgba(255,255,255,.62);
    }
    .main-nav a{
      position:relative;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:38px;
      padding:0 16px;
      border-radius:999px;
      color:#4f5c58;
      font-size:15px;
      font-weight:700;
    }
    .main-nav a:hover{
      color:var(--color-primary-dark);
      background:rgba(226,245,239,.78);
    }
    .main-nav a.active{
      color:var(--color-primary-dark);
      background:var(--color-primary-soft);
    }
    .main-nav a.active::after{
      content:"";
      position:absolute;
      left:50%;
      bottom:5px;
      transform:translateX(-50%);
      width:18px;
      height:2px;
      border-radius:2px;
      background:var(--color-primary);
    }
    .header-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:42px;
      padding:0 18px;
      border-radius:999px;
      background:var(--gradient-primary);
      color:#fff;
      font-weight:800;
      box-shadow:0 12px 28px rgba(47,155,136,.22);
    }
    .header-cta:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(47,155,136,.28);color:#fff}
    .menu-toggle{
      display:none;
      width:46px;
      height:46px;
      border:1px solid var(--color-line);
      border-radius:16px;
      background:#fff;
      color:var(--color-ink);
      align-items:center;
      justify-content:center;
    }
    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after{
      content:"";
      display:block;
      width:20px;
      height:2px;
      background:var(--color-ink);
      border-radius:2px;
      transition:var(--transition);
      position:relative;
    }
    .menu-toggle span::before{position:absolute;top:-7px}
    .menu-toggle span::after{position:absolute;top:7px}
    .menu-toggle.is-open span{background:transparent}
    .menu-toggle.is-open span::before{top:0;transform:rotate(45deg)}
    .menu-toggle.is-open span::after{top:0;transform:rotate(-45deg)}

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:50px;
      padding:0 22px;
      border-radius:999px;
      border:1px solid transparent;
      font-size:16px;
      font-weight:800;
      line-height:1;
      transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition);
    }
    .btn-primary{
      color:#fff;
      background:var(--gradient-primary);
      box-shadow:0 18px 36px rgba(47,155,136,.24);
    }
    .btn-primary:hover{color:#fff;transform:translateY(-3px);box-shadow:0 22px 44px rgba(47,155,136,.32)}
    .btn-secondary{
      color:var(--color-ink);
      background:rgba(255,255,255,.82);
      border-color:var(--color-line);
    }
    .btn-secondary:hover{color:var(--color-primary-dark);background:var(--color-primary-soft);transform:translateY(-2px)}
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--color-primary-dark);
      font-weight:800;
    }
    .text-link::after{content:"→";transition:transform var(--transition)}
    .text-link:hover::after{transform:translateX(4px)}
    a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
      outline:3px solid rgba(47,155,136,.28);
      outline-offset:3px;
    }

    .inner-hero{
      padding:72px 0 58px;
      overflow:hidden;
    }
    .inner-hero::before{
      content:"";
      position:absolute;
      inset:18px 20px auto 20px;
      height:calc(100% - 36px);
      border-radius:0 0 44px 44px;
      background:
        linear-gradient(120deg, rgba(255,255,255,.85), rgba(226,245,239,.88), rgba(242,232,216,.76)),
        repeating-linear-gradient(90deg, rgba(47,155,136,.10) 0 1px, transparent 1px 74px);
      z-index:-1;
      border-bottom:1px solid rgba(61,122,107,.12);
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      color:var(--color-muted);
      font-size:14px;
      margin-bottom:22px;
    }
    .breadcrumb a{color:var(--color-primary-dark);font-weight:700}
    .breadcrumb span:last-child{color:var(--color-ink);font-weight:700}
    .hero-title{
      margin:14px 0 18px;
      color:var(--color-ink);
      font-size:clamp(36px,6vw,60px);
      line-height:1.08;
      letter-spacing:-.045em;
      font-weight:850;
      max-width:900px;
    }
    .hero-copy{
      max-width:760px;
      margin:0;
      color:#52605c;
      font-size:18px;
      line-height:1.86;
    }
    .hero-mini-panel{
      background:rgba(255,255,255,.72);
      border:1px solid var(--color-line);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
      padding:24px;
      height:100%;
    }
    .round-board{
      display:grid;
      gap:14px;
    }
    .round-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:16px;
      border-radius:20px;
      background:rgba(247,250,247,.78);
      border:1px solid rgba(61,122,107,.12);
    }
    .round-item strong{color:var(--color-ink);font-size:17px}
    .round-item span{
      color:var(--color-primary-dark);
      font-size:13px;
      font-weight:800;
      padding:5px 9px;
      border-radius:999px;
      background:var(--color-primary-soft);
      white-space:nowrap;
    }

    .tag-filter{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:30px;
    }
    .filter-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:42px;
      padding:0 15px;
      border-radius:999px;
      border:1px solid var(--color-line);
      background:rgba(255,255,255,.78);
      color:#51605b;
      font-size:14px;
      font-weight:800;
      transition:var(--transition);
    }
    .filter-pill:hover{transform:translateY(-2px);color:var(--color-primary-dark);border-color:rgba(47,155,136,.35)}
    .filter-pill.active{background:var(--color-primary-soft);color:var(--color-primary-dark);border-color:rgba(47,155,136,.32)}
    .filter-pill i{
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--color-primary);
      display:inline-block;
    }

    .feature-card,.option-card,.info-card,.compare-panel,.faq-item,.contact-card{
      border:1px solid var(--color-line);
      background:rgba(255,255,255,.82);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-card);
      transition:transform var(--transition),box-shadow var(--transition),border-color var(--transition);
    }
    .feature-card:hover,.option-card:hover,.info-card:hover{
      transform:translateY(-5px);
      border-color:rgba(47,155,136,.34);
      box-shadow:0 24px 58px rgba(47,95,86,.16);
    }
    .main-solution{
      padding:24px;
      overflow:hidden;
      background:
        linear-gradient(135deg,rgba(255,255,255,.9),rgba(226,245,239,.78)),
        var(--color-white);
    }
    .solution-visual{
      min-height:330px;
      border-radius:28px;
      background:
        radial-gradient(circle at 30% 24%,rgba(47,155,136,.28),transparent 24%),
        linear-gradient(135deg,#f8fbf8,#e8f5ef 52%,#f4eadb);
      border:1px solid rgba(61,122,107,.12);
      padding:22px;
      position:relative;
      overflow:hidden;
    }
    .solution-visual::after{
      content:"";
      position:absolute;
      inset:auto -30px -52px auto;
      width:220px;
      height:220px;
      border-radius:50%;
      background:rgba(217,185,143,.42);
    }
    .space-lines{
      position:absolute;
      inset:36px 30px;
      border:2px solid rgba(47,155,136,.24);
      border-radius:24px;
    }
    .space-lines::before,.space-lines::after{
      content:"";
      position:absolute;
      background:rgba(47,155,136,.18);
      border-radius:999px;
    }
    .space-lines::before{width:70%;height:2px;left:15%;top:45%}
    .space-lines::after{width:2px;height:70%;left:50%;top:15%}
    .visual-label{
      position:absolute;
      left:22px;
      bottom:22px;
      z-index:2;
      display:grid;
      gap:8px;
    }
    .visual-label span{
      width:max-content;
      padding:8px 12px;
      border-radius:999px;
      color:var(--color-ink);
      background:rgba(255,255,255,.74);
      border:1px solid rgba(61,122,107,.14);
      font-weight:800;
      font-size:13px;
    }
    .main-solution h2{
      color:var(--color-ink);
      margin:0 0 14px;
      font-size:clamp(28px,3.2vw,40px);
      line-height:1.18;
      font-weight:850;
      letter-spacing:-.03em;
    }
    .main-solution p{margin:0 0 20px;color:var(--color-muted);font-size:17px}
    .check-list{display:grid;gap:12px;margin:20px 0 24px}
    .check-list li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:#44524e;
      font-weight:650;
    }
    .check-list li::before{
      content:"";
      width:18px;
      height:18px;
      margin-top:5px;
      border-radius:50%;
      background:
        linear-gradient(135deg,rgba(255,255,255,.8),rgba(255,255,255,.1)),
        var(--color-primary);
      box-shadow:0 0 0 5px rgba(47,155,136,.10);
      flex:0 0 auto;
    }
    .badge-row{display:flex;flex-wrap:wrap;gap:10px}
    .badge{
      display:inline-flex;
      align-items:center;
      padding:7px 11px;
      border-radius:999px;
      background:rgba(226,245,239,.78);
      border:1px solid rgba(47,155,136,.16);
      color:var(--color-primary-dark);
      font-size:13px;
      font-weight:800;
    }

    .option-grid{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
      margin-top:22px;
    }
    .option-card{
      padding:24px;
      min-height:260px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .card-icon{
      width:48px;
      height:48px;
      border-radius:17px;
      background:var(--gradient-soft);
      border:1px solid var(--color-line);
      display:flex;
      align-items:center;
      justify-content:center;
      margin-bottom:18px;
    }
    .card-icon svg{width:26px;height:26px;stroke:var(--color-primary-dark);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}
    .option-card h3,.info-card h3{
      margin:0 0 10px;
      color:var(--color-ink);
      font-size:22px;
      line-height:1.25;
      font-weight:800;
    }
    .option-card p,.info-card p{margin:0 0 16px;color:var(--color-muted)}
    .mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
    .mini-tags span{
      padding:5px 9px;
      border-radius:999px;
      background:#f4f8f5;
      color:#596662;
      border:1px solid rgba(61,122,107,.12);
      font-size:12px;
      font-weight:800;
    }

    .info-block{
      background:
        radial-gradient(circle at 8% 18%,rgba(189,234,220,.45),transparent 28%),
        var(--color-white);
      border-top:1px solid rgba(61,122,107,.10);
      border-bottom:1px solid rgba(61,122,107,.10);
    }
    .info-card{
      padding:26px;
      height:100%;
    }
    .material-stack{
      display:grid;
      gap:14px;
      margin-top:20px;
    }
    .material-row{
      display:grid;
      grid-template-columns:120px 1fr;
      gap:16px;
      padding:16px;
      border-radius:20px;
      background:rgba(247,250,247,.85);
      border:1px solid rgba(61,122,107,.12);
    }
    .material-row strong{color:var(--color-ink)}
    .material-row span{color:var(--color-muted)}

    .compare-panel{
      overflow:hidden;
      background:#fff;
    }
    .compare-header{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr .9fr;
      background:linear-gradient(135deg,#eef8f3,#f8efe0);
      color:var(--color-ink);
      font-weight:850;
      border-bottom:1px solid var(--color-line);
    }
    .compare-row{
      display:grid;
      grid-template-columns:1.1fr .9fr .9fr .9fr;
      border-bottom:1px solid rgba(61,122,107,.10);
    }
    .compare-row:last-child{border-bottom:0}
    .compare-header div,.compare-row div{
      padding:18px;
      min-width:0;
    }
    .compare-row div:first-child{
      color:var(--color-ink);
      font-weight:800;
    }
    .compare-row div:not(:first-child){color:#5c6965}
    .status-dot{
      display:inline-flex;
      align-items:center;
      gap:8px;
    }
    .status-dot::before{
      content:"";
      width:8px;height:8px;border-radius:50%;background:var(--color-primary);
    }

    .process-lane{
      display:grid;
      grid-template-columns:repeat(5,1fr);
      gap:14px;
      counter-reset:step;
    }
    .process-card{
      position:relative;
      padding:24px 18px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.82);
      border:1px solid var(--color-line);
      min-height:210px;
      box-shadow:0 12px 34px rgba(47,95,86,.08);
    }
    .process-card::before{
      counter-increment:step;
      content:"0" counter(step);
      display:inline-flex;
      align-items:center;
      justify-content:center;
      width:44px;
      height:44px;
      border-radius:16px;
      background:var(--color-primary-soft);
      color:var(--color-primary-dark);
      font-weight:900;
      margin-bottom:20px;
    }
    .process-card h3{
      color:var(--color-ink);
      margin:0 0 10px;
      font-size:19px;
      font-weight:850;
    }
    .process-card p{margin:0;color:var(--color-muted);font-size:15px;line-height:1.72}

    .faq-wrap{display:grid;gap:14px}
    .faq-item{overflow:hidden;box-shadow:0 10px 30px rgba(47,95,86,.08)}
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:22px 24px;
      border:0;
      background:transparent;
      color:var(--color-ink);
      text-align:left;
      font-size:18px;
      font-weight:850;
    }
    .faq-question .mark{
      width:30px;
      height:30px;
      border-radius:50%;
      background:var(--color-primary-soft);
      color:var(--color-primary-dark);
      display:flex;
      align-items:center;
      justify-content:center;
      flex:0 0 auto;
      font-size:22px;
      line-height:1;
      transition:transform var(--transition);
    }
    .faq-answer{
      display:none;
      padding:0 24px 24px;
      color:var(--color-muted);
      line-height:1.85;
    }
    .faq-item.is-open .faq-answer{display:block}
    .faq-item.is-open .mark{transform:rotate(45deg)}

    .cta-band{
      padding:74px 0 98px;
    }
    .contact-card{
      padding:34px;
      background:
        radial-gradient(circle at 86% 18%,rgba(255,255,255,.55),transparent 24%),
        linear-gradient(135deg,#e4f5ee,#f7eddd);
      box-shadow:0 26px 70px rgba(47,95,86,.15);
    }
    .contact-card h2{
      color:var(--color-ink);
      margin:0 0 12px;
      font-size:clamp(28px,4vw,42px);
      line-height:1.18;
      font-weight:850;
      letter-spacing:-.03em;
    }
    .contact-card p{margin:0;color:#52605c;font-size:17px;max-width:670px}
    .contact-form{
      display:grid;
      gap:12px;
      padding:20px;
      border-radius:24px;
      background:rgba(255,255,255,.62);
      border:1px solid rgba(61,122,107,.14);
    }
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .contact-form label{
      display:block;
      font-size:13px;
      font-weight:800;
      color:var(--color-ink);
      margin-bottom:7px;
    }
    .contact-form input,.contact-form select,.contact-form textarea{
      width:100%;
      min-height:50px;
      border:1px solid rgba(61,122,107,.18);
      border-radius:16px;
      background:#fff;
      color:var(--color-ink);
      padding:12px 14px;
      box-shadow:none;
      margin:0;
      transition:border-color var(--transition),box-shadow var(--transition);
    }
    .contact-form textarea{min-height:96px;resize:vertical}
    .contact-form input:focus,.contact-form select:focus,.contact-form textarea:focus{
      border-color:rgba(47,155,136,.58);
      box-shadow:0 0 0 4px rgba(47,155,136,.12);
      outline:none;
    }
    .form-note{font-size:13px;color:var(--color-muted);margin:0}

    .site-footer{
      background:var(--color-footer);
      color:rgba(255,255,255,.78);
      padding:56px 0 24px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr 1fr;
      gap:42px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand{
      display:inline-flex;
      align-items:center;
      gap:12px;
      color:#fff;
      font-size:19px;
      font-weight:850;
      margin-bottom:14px;
    }
    .footer-brand:hover{color:#fff;transform:translateY(-1px)}
    .footer-desc{
      margin:0;
      max-width:460px;
      color:rgba(255,255,255,.68);
      line-height:1.85;
    }
    .footer-title{
      color:#fff;
      font-weight:850;
      margin-bottom:14px;
    }
    .footer-links,.footer-info{display:grid;gap:10px}
    .footer-links a{
      color:rgba(255,255,255,.72);
      width:max-content;
      border-bottom:1px solid transparent;
    }
    .footer-links a:hover{
      color:#bdeadc;
      border-bottom-color:#bdeadc;
      transform:translateX(3px);
    }
    .footer-info span{color:rgba(255,255,255,.68)}
    .copyright{
      padding-top:22px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      color:rgba(255,255,255,.56);
      font-size:14px;
    }

    @media (max-width:1024px){
      .section-pad{padding:78px 0}
      .section-head{display:block}
      .section-head p{margin-top:14px}
      .option-grid{grid-template-columns:repeat(2,1fr)}
      .process-lane{grid-template-columns:repeat(3,1fr)}
      .compare-header,.compare-row{grid-template-columns:1fr 1fr 1fr 1fr}
      .header-cta{display:none}
    }
    @media (max-width:768px){
      .site-container{width:min(calc(100% - 28px), var(--container))}
      .header-inner{min-height:70px}
      .menu-toggle{display:inline-flex}
      .nav-wrap{
        position:absolute;
        left:14px;
        right:14px;
        top:78px;
        display:none;
        padding:14px;
        border-radius:24px;
        background:rgba(255,255,255,.96);
        border:1px solid var(--color-line);
        box-shadow:var(--shadow-soft);
      }
      .nav-wrap.is-open{display:block}
      .main-nav{
        width:100%;
        display:grid;
        gap:6px;
        border-radius:18px;
        background:transparent;
        border:0;
        padding:0;
      }
      .main-nav a{
        justify-content:flex-start;
        min-height:46px;
        border-radius:14px;
      }
      .main-nav a.active::after{display:none}
      .inner-hero{padding:52px 0 42px}
      .inner-hero::before{inset:10px 8px auto 8px;border-radius:0 0 30px 30px}
      .tag-filter{gap:9px}
      .option-grid{grid-template-columns:1fr}
      .material-row{grid-template-columns:1fr;gap:6px}
      .compare-panel{
        display:grid;
        gap:12px;
        background:transparent;
        border:0;
        box-shadow:none;
      }
      .compare-header{display:none}
      .compare-row{
        display:block;
        border:1px solid var(--color-line);
        border-radius:22px;
        background:#fff;
        box-shadow:0 10px 28px rgba(47,95,86,.08);
        overflow:hidden;
      }
      .compare-row div{
        padding:13px 16px;
        border-bottom:1px solid rgba(61,122,107,.08);
      }
      .compare-row div:last-child{border-bottom:0}
      .compare-row div:not(:first-child)::before{
        display:block;
        color:var(--color-primary-dark);
        font-size:12px;
        font-weight:900;
        margin-bottom:4px;
      }
      .compare-row div:nth-child(2)::before{content:"新建项目"}
      .compare-row div:nth-child(3)::before{content:"改造项目"}
      .compare-row div:nth-child(4)::before{content:"重点关注"}
      .process-lane{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .copyright{display:grid}
      .form-row{grid-template-columns:1fr}
      .contact-card{padding:24px}
    }
    @media (max-width:480px){
      .brand{font-size:17px}
      .brand-mark{width:32px;height:32px}
      .section-pad{padding:62px 0}
      .section-pad-sm{padding:54px 0}
      .hero-title{font-size:34px}
      .hero-copy{font-size:16px}
      .btn{width:100%;min-height:48px}
      .badge-row{display:grid}
      .main-solution{padding:18px;border-radius:24px}
      .solution-visual{min-height:240px;border-radius:22px}
      .faq-question{font-size:16px;padding:18px}
      .faq-answer{padding:0 18px 18px}
    }