/* roulang page: index */
:root{
  --ink:#192421;--muted:#68756f;--paper:#fbfaf6;--soft:#f1f4ed;--line:#dce4db;
  --mint:#00a78b;--aqua:#00b9c9;--lime:#b7db3d;--orange:#f18a3a;--dark:#17201e;
  --deep:#101714;--white:#fff;--radius:26px;--small:15px;
  --shadow:0 18px 50px rgba(25,36,33,.08);--max:1240px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.78;overflow-x:hidden}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}button,input,select,textarea{font:inherit}button{cursor:pointer}section{scroll-margin-top:128px}.container{width:min(var(--max),calc(100% - 48px));margin:auto}.eyebrow{display:inline-flex;gap:8px;align-items:center;color:#087a6c;font-size:13px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 5px rgba(0,167,139,.12)}h1,h2,h3,p{margin-top:0}h2{font-size:clamp(28px,4vw,46px);line-height:1.25;letter-spacing:-.04em;margin-bottom:16px}h3{line-height:1.4;margin-bottom:10px}p{color:var(--muted)}.section{padding:94px 0}.section-head{max-width:720px;margin-bottom:38px}.section-head p{margin-bottom:0}.btn{min-height:48px;padding:0 22px;border:1px solid transparent;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-weight:800;transition:.25s ease}.btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(0,167,139,.22)}.btn:active{transform:translateY(0)}.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(0,185,201,.38);outline-offset:3px}.btn-primary{color:#062a28;background:linear-gradient(100deg,var(--lime),#60d4a5 48%,var(--aqua))}.btn-dark{background:var(--dark);color:#fff}.btn-line{border-color:#afc0b6;color:var(--ink);background:#fff}.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:999px;background:#e7f7f1;color:#087a6c;font-size:12px;font-weight:800;line-height:1.3}.badge.warn{background:#fff0e4;color:#ad5416}.badge.blue{background:#e7f6f8;color:#087886}.topbar{background:var(--dark);color:#dce9e2;font-size:13px}.topinner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:18px}.topinner a{color:#c8f2e4;font-weight:700}.header{position:sticky;top:0;z-index:30;background:rgba(251,250,246,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(220,228,219,.8)}.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:18px;white-space:nowrap}.logo-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(140deg,var(--lime),var(--mint),var(--aqua));position:relative}.logo-mark:after{content:"";position:absolute;inset:8px 10px;border:2px solid #11352f;border-top:0;border-bottom:0}.navlinks{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:700}.navlinks a{position:relative;color:#53615b}.navlinks a:after{content:"";position:absolute;left:0;right:0;bottom:-8px;height:2px;background:var(--mint);transform:scaleX(0);transition:.2s}.navlinks a:hover,.navlinks a.active{color:var(--ink)}.navlinks a:hover:after,.navlinks a.active:after{transform:scaleX(1)}.menu-btn{display:none;border:0;background:none;width:44px;height:44px;font-size:23px}.hero{position:relative;min-height:690px;padding:86px 0 60px;overflow:hidden;color:#fff;background:#20312c}.hero-bg{position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,25,22,.93) 0%,rgba(17,38,33,.7) 44%,rgba(16,31,27,.3) 100%),url('/assets/images/9f83c0ce164df342.webp') center/cover;transition:opacity .5s}.hero:after{content:"";position:absolute;width:600px;height:600px;right:-180px;bottom:-270px;border-radius:50%;background:radial-gradient(circle,rgba(183,219,61,.33),transparent 65%)}.hero-inner{position:relative;z-index:1;max-width:790px}.hero .eyebrow{color:#bff5df}.hero h1{font-size:clamp(42px,6vw,76px);line-height:1.12;letter-spacing:-.065em;margin:18px 0 22px}.hero p{font-size:18px;max-width:720px;color:#d5e4dc}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0}.hero .btn-line{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.42);color:#fff}.trust-row{display:flex;gap:12px;flex-wrap:wrap}.trust{padding:11px 14px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.09);border-radius:15px;font-size:13px}.slides{position:absolute;right:5%;bottom:32px;z-index:2;display:flex;gap:8px}.dot{width:34px;height:5px;border:0;border-radius:999px;background:rgba(255,255,255,.35);padding:0}.dot.active{background:var(--lime)}.chain{padding-top:0;margin-top:-46px;position:relative;z-index:3}.chain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.chain-card{background:#fff;padding:28px;border-radius:22px;box-shadow:var(--shadow);border:1px solid #e4ebe3}.chain-no{font-size:13px;font-weight:900;color:var(--mint)}.chain-card h3{font-size:21px;margin-top:8px}.chain-card p{font-size:14px;margin-bottom:15px}.chain-card a{font-size:14px;font-weight:800;color:#087a6c}.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:72px}.image-panel{border-radius:var(--radius);overflow:hidden;position:relative;min-height:470px;background:#d8e6df}.image-panel img{width:100%;height:100%;object-fit:cover;position:absolute}.image-panel .image-note{position:absolute;left:22px;bottom:22px;right:22px;background:#ffffffeb;padding:16px 18px;border-radius:16px;font-size:14px;color:var(--ink);font-weight:700}.spec-list{list-style:none;padding:0;margin:24px 0;display:grid;gap:10px}.spec-list li{border-left:3px solid var(--mint);padding:6px 0 6px 14px;font-size:15px}.matrix{background:var(--soft)}.matrix-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:16px}.ability{background:#fff;border:1px solid var(--line);border-radius:22px;padding:24px;min-height:190px;transition:.25s}.ability:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#a7dacc}.ability.big{grid-row:span 2;background:linear-gradient(145deg,#19332d,#224d41);color:#fff}.ability.big p{color:#d0e1d9}.ability .num{font-size:12px;color:var(--mint);font-weight:900}.ability h3{font-size:19px;margin-top:12px}.ability p{font-size:14px;margin-bottom:8px}.scenario-wrap{display:grid;grid-template-columns:300px 1fr;gap:22px}.scenario-tabs{display:flex;flex-direction:column;gap:10px}.scenario-tab{min-height:67px;text-align:left;border:1px solid var(--line);padding:12px 16px;border-radius:15px;background:#fff;font-weight:800;color:#51615a;transition:.2s}.scenario-tab.active,.scenario-tab:hover{background:#e8f8f2;border-color:#80d4ba;color:#075e53}.scenario-panel{padding:36px;border-radius:var(--radius);min-height:360px;color:#fff;background:linear-gradient(105deg,rgba(18,37,32,.9),rgba(0,130,118,.55)),url('/assets/images/55e67654b7ddb840.webp') center/cover}.scenario-panel h3{font-size:31px}.scenario-panel p{color:#deeee8;max-width:600px}.scenario-data{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}.scenario-data span{padding:8px 11px;border-radius:10px;background:rgba(255,255,255,.14);font-size:13px}.product-list{display:grid;gap:16px}.product{display:grid;grid-template-columns:160px 1fr auto;gap:28px;align-items:center;padding:24px 28px;background:#fff;border:1px solid var(--line);border-radius:22px}.product img{width:160px;height:115px;object-fit:cover;border-radius:14px}.product h3{font-size:21px;margin:0 0 8px}.mini-spec{display:flex;flex-wrap:wrap;gap:8px}.mini-spec span{font-size:12px;background:#f0f5f1;border-radius:8px;padding:5px 8px}.darkcase{background:var(--deep);color:#fff;position:relative;overflow:hidden}.darkcase:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(98,167,142,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(98,167,142,.09) 1px,transparent 1px);background-size:40px 40px}.darkcase .container{position:relative}.darkcase p{color:#b7c8c0}.case-grid{display:grid;grid-template-columns:1.4fr .7fr;gap:18px}.case-main{padding:34px;border:1px solid rgba(174,226,197,.22);border-radius:24px;background:linear-gradient(140deg,rgba(24,63,52,.9),rgba(20,28,25,.92))}.case-main h3{font-size:28px}.case-side{display:grid;gap:18px}.case-small{padding:24px;border-radius:20px;background:#202d29}.case-small strong{display:block;font-size:34px;color:#bcdf4a}.story-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start}.timeline{border-left:2px solid #b5ddd1;padding-left:27px}.timeline-item{position:relative;padding:0 0 25px}.timeline-item:before{content:"";position:absolute;left:-34px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--mint)}.timeline-item h3{font-size:18px}.quote-panel{background:#eff7f2;border-radius:var(--radius);padding:38px}.quote-panel blockquote{font-size:25px;line-height:1.6;margin:0 0 20px;font-weight:800}.stats{padding:32px 0;background:linear-gradient(95deg,#0c7e70,#00a89a 48%,#67c799);color:#fff}.stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}.stat strong{display:block;font-size:32px;line-height:1.2}.stat span{font-size:13px;color:#dffaf0}.review-layout{display:grid;grid-template-columns:1fr .72fr;gap:20px}.review-main{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:38px}.review-main blockquote{font-size:26px;line-height:1.65;margin:0 0 22px;font-weight:700}.review-side{background:linear-gradient(145deg,#f2eedd,#e3f4ea);padding:32px;border-radius:var(--radius)}.review-side p{font-size:15px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:20px;background:#fff}.compare{width:100%;min-width:760px;border-collapse:collapse}.compare th,.compare td{padding:17px 20px;text-align:left;border-bottom:1px solid var(--line);font-size:14px}.compare th{background:#eff7f2;color:#276157}.compare td:nth-child(2){color:#087a6c;font-weight:800}.news-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:18px}.news{border:1px solid var(--line);border-radius:20px;padding:24px;background:#fff;min-height:240px}.news.featured{background:linear-gradient(145deg,#e3f7ee,#fff)}.news time{font-size:12px;color:#73847b}.news h3{font-size:20px;margin-top:12px}.news p{font-size:14px}.news a{font-size:14px;font-weight:800;color:#087a6c}.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}.faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;margin-bottom:10px;overflow:hidden}.faq-question{width:100%;min-height:58px;padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:15px;border:0;background:#fff;text-align:left;color:var(--ink);font-weight:800}.faq-question span:last-child{font-size:24px;font-weight:400;color:var(--mint);transition:.2s}.faq-item.open{border-color:#7fcdb8;box-shadow:0 8px 26px rgba(0,128,107,.08)}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}.faq-answer{display:none;padding:0 18px 18px;color:var(--muted);font-size:14px}.faq-item.open .faq-answer{display:block}.contact-section{background:#eef4ef}.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:42px;align-items:start}.support-list{display:grid;gap:14px;margin-top:28px}.support-item{display:flex;gap:14px;padding:16px;background:#fff;border-radius:15px;border:1px solid var(--line)}.support-icon{flex:0 0 34px;width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:#ddf5eb;color:#087a6c;font-weight:900}.support-item strong{display:block;font-size:15px}.support-item span{display:block;font-size:13px;color:var(--muted)}.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}.form-card h3{font-size:26px}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{margin-bottom:15px}.field label{display:block;font-size:13px;font-weight:800;margin-bottom:6px;color:#405049}.field input,.field select,.field textarea{width:100%;border:1px solid #ccd8d0;background:#fcfdfb;color:var(--ink);border-radius:12px;padding:12px 13px;min-height:47px;outline:0;transition:.2s}.field textarea{min-height:100px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--mint);box-shadow:0 0 0 4px rgba(0,167,139,.11)}.form-tip{min-height:22px;margin:11px 0 0;font-size:13px}.form-tip.success{color:#087a6c}.form-tip.error{color:#b8521b}.submit-btn[disabled]{opacity:.62;cursor:not-allowed;transform:none;box-shadow:none}.bottom-cta{padding:78px 0}.cta-card{border-radius:32px;padding:54px;overflow:hidden;position:relative;color:#062a28;background:linear-gradient(110deg,#c6e94f,#65d6a4 43%,#45c9ce)}.cta-card:after{content:"";position:absolute;right:-5%;top:-95%;width:55%;height:210%;border:1px solid rgba(255,255,255,.52);border-radius:50%;transform:rotate(22deg)}.cta-card>*{position:relative;z-index:1}.cta-card h2{max-width:700px;margin-bottom:14px}.cta-card p{color:#164a41;max-width:680px}.cta-card .badge{background:rgba(255,255,255,.55);color:#155a4e}.footer{background:#131c19;color:#c4d1cb;padding:58px 0 26px;position:relative}.footer:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--lime),var(--mint),var(--aqua))}.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .9fr;gap:42px}.footer .logo{color:#fff;margin-bottom:13px}.footer p{color:#9fafa7;font-size:14px}.footer h3{color:#fff;font-size:15px;margin-bottom:14px}.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:7px;font-size:14px}.footer-links a:hover{color:#aeeacb}.trust-info{list-style:none;padding:0;margin:0;display:grid;gap:7px;font-size:14px}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;font-size:12px;color:#8e9e96;display:flex;justify-content:space-between;gap:16px}.mobile-bar{display:none}
@media (max-width:1024px){.navlinks{gap:13px;font-size:13px}.nav>.btn{display:none}.intro-grid{gap:35px}.matrix-grid{grid-template-columns:1fr 1fr}.ability.big{grid-row:auto}.stats-grid{grid-template-columns:repeat(3,1fr)}.product{grid-template-columns:130px 1fr}.product .btn{grid-column:2}.news-grid{grid-template-columns:1fr 1fr}.news.featured{grid-column:span 2}}
@media (max-width:768px){body{padding-bottom:70px}.container{width:min(100% - 32px,var(--max))}.topbar{display:none}.header{top:0}.nav{height:66px}.menu-btn{display:block;margin-left:auto}.navlinks{position:fixed;top:66px;left:0;right:0;padding:18px 22px 24px;background:#fbfaf6;border-bottom:1px solid var(--line);box-shadow:0 16px 26px rgba(10,20,16,.12);display:none;flex-direction:column;align-items:stretch;gap:5px}.navlinks.open{display:flex}.navlinks a{padding:11px 6px}.navlinks a:after{display:none}.navlinks .mobile-contact{display:inline-flex}.hero{min-height:630px;padding-top:72px}.hero h1{font-size:45px}.hero p{font-size:16px}.chain-grid,.intro-grid,.scenario-wrap,.case-grid,.story-grid,.review-layout,.faq-grid,.contact-grid,.footer-grid{grid-template-columns:1fr}.chain{margin-top:-25px}.chain-card{padding:22px}.section{padding:70px 0}.image-panel{min-height:320px;order:2}.matrix-grid{grid-template-columns:1fr 1fr}.scenario-tabs{flex-direction:row;overflow:auto;padding-bottom:4px}.scenario-tab{min-width:176px}.scenario-panel{padding:27px;min-height:325px}.product{grid-template-columns:110px 1fr;gap:18px;padding:20px}.product img{width:110px;height:92px}.product .btn{grid-column:1/-1}.case-main{padding:26px}.stats-grid{grid-template-columns:repeat(2,1fr)}.news-grid{grid-template-columns:1fr}.news.featured{grid-column:auto}.form-card{padding:24px}.cta-card{padding:36px 25px}.footer-grid{gap:28px}.copyright{flex-direction:column}.mobile-bar{display:grid;grid-template-columns:1fr 1fr 1fr;position:fixed;z-index:45;bottom:0;left:0;right:0;padding:8px 9px calc(8px + env(safe-area-inset-bottom));background:#13201c;border-top:1px solid rgba(255,255,255,.15);gap:7px}.mobile-bar a{display:flex;align-items:center;justify-content:center;min-height:44px;text-align:center;border-radius:11px;color:#fff;font-size:12px;font-weight:800}.mobile-bar a:first-child{background:#295044}.mobile-bar a:nth-child(2){background:var(--mint)}.mobile-bar a:last-child{background:var(--lime);color:#14352e}}
@media (max-width:520px){h2{font-size:29px}.hero{min-height:610px}.hero h1{font-size:39px}.hero-actions .btn{width:100%}.trust-row{gap:7px}.trust{font-size:12px;padding:9px}.chain-grid,.matrix-grid{grid-template-columns:1fr}.matrix-grid .ability{min-height:auto}.section-head{margin-bottom:26px}.scenario-panel h3{font-size:26px}.product{grid-template-columns:1fr}.product img{width:100%;height:160px}.product .btn{grid-column:auto}.form-row{grid-template-columns:1fr}.quote-panel,.review-main{padding:26px}.quote-panel blockquote,.review-main blockquote{font-size:21px}.stats-grid{gap:12px}.stat strong{font-size:27px}.cta-card{padding:30px 21px;border-radius:24px}.logo{font-size:16px}.logo-mark{width:31px;height:31px}}