/* roulang page: index */
:root{
  --ink:#12211D;--ink-2:#5B6B66;--line:#E3DED2;--bg:#F7F4EE;--card:#FFFFFF;--deep:#0E211D;
  --brand-1:#173E36;--brand-2:#2F7A63;--brand-3:#7FC8A9;
  --accent:#F0A13C;--warn:#E4573D;
  --radius-lg:22px;--radius-md:16px;--radius-sm:12px;
  --shadow-1:0 1px 2px rgba(18,33,29,.05),0 8px 24px -16px rgba(18,33,29,.35);
  --shadow-2:0 14px 34px -18px rgba(18,33,29,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
i,em{font-style:normal}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

.gh-container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.gh-container{padding:0 24px}}
@media(min-width:1024px){.gh-container{padding:0 32px}}

/* header */
.gh-header{position:sticky;top:0;z-index:60;background:rgba(247,244,238,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:background .2s,box-shadow .2s}
.gh-header.is-scrolled{background:rgba(255,255,255,.94);box-shadow:0 6px 20px -18px rgba(18,33,29,.6)}
.gh-header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;flex-wrap:wrap}
.gh-logo{display:flex;align-items:center;gap:10px;min-width:0;flex:0 0 auto}
.gh-logo-mark{width:40px;height:40px;flex:0 0 auto;border-radius:12px;background:linear-gradient(135deg,var(--brand-1),var(--brand-2) 58%,var(--brand-3));color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;letter-spacing:.04em}
.gh-logo-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.gh-logo-text strong{font-size:17px;letter-spacing:.03em;color:var(--ink)}
.gh-logo-text em{font-size:11.5px;letter-spacing:.1em;color:var(--ink-2)}
.gh-nav{display:flex;align-items:center;gap:2px}
.gh-nav-link{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:999px;font-size:14.5px;color:var(--ink-2);transition:color .2s,background .2s}
.gh-nav-link:hover{color:var(--brand-1);background:rgba(47,122,99,.08)}
.gh-nav-link.is-active{color:var(--brand-1);font-weight:600;background:rgba(47,122,99,.12)}
.gh-nav-cta{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;margin-left:10px;border-radius:999px;font-size:14.5px;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--brand-1),var(--brand-2));box-shadow:0 10px 22px -16px rgba(23,62,54,.95);transition:filter .2s,transform .2s}
.gh-nav-cta:hover{filter:brightness(1.08);transform:translateY(-1px)}
.gh-nav-cta:active{transform:translateY(0)}
.gh-menu-btn{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.gh-menu-btn svg{width:20px;height:20px;stroke:var(--brand-1)}

/* steps */
.gh-steps-wrap{border-top:1px solid rgba(227,222,210,.8);background:linear-gradient(90deg,rgba(23,62,54,.05),rgba(127,200,169,.14))}
.gh-steps{display:flex;align-items:center;gap:6px;padding:7px 0;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.gh-steps::-webkit-scrollbar{display:none}
.gh-step{display:inline-flex;align-items:center;gap:8px;flex:0 0 auto;padding:3px 14px 3px 4px;border-radius:999px;font-size:13px;color:var(--ink-2);transition:background .2s,color .2s,box-shadow .2s}
.gh-step:hover{background:rgba(255,255,255,.7);color:var(--brand-1)}
.gh-step-dot{width:22px;height:22px;flex:0 0 auto;border-radius:999px;border:1.5px solid var(--brand-2);background:#fff;display:grid;place-items:center;font-size:11px;font-weight:700;color:var(--brand-1);font-variant-numeric:tabular-nums}
.gh-step.is-current{background:#fff;color:var(--brand-1);font-weight:600;box-shadow:var(--shadow-1)}
.gh-step.is-current .gh-step-dot{background:linear-gradient(135deg,var(--brand-1),var(--brand-3));border-color:transparent;color:#fff}
.gh-step-line{flex:0 0 auto;width:18px;height:1.5px;background:linear-gradient(90deg,var(--brand-3),var(--line))}

/* buttons */
.gh-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;border:1.5px solid transparent;transition:filter .2s,transform .2s,box-shadow .2s,background .2s,color .2s;text-align:center}
.gh-btn-main{color:#fff;background:linear-gradient(135deg,var(--brand-1),var(--brand-2));box-shadow:0 12px 26px -18px rgba(23,62,54,.95)}
.gh-btn-main:hover{filter:brightness(1.09);box-shadow:var(--shadow-2)}
.gh-btn-main:active{transform:translateY(1px)}
.gh-btn-ghost{background:#fff;border-color:var(--brand-1);color:var(--brand-1)}
.gh-btn-ghost:hover{background:#F0F7F3}
.gh-btn-ghost:active{transform:translateY(1px)}
.gh-btn-mini{min-height:40px;padding:0 16px;font-size:14px}

/* hero */
.gh-hero{position:relative;overflow:hidden;padding:36px 0 56px;background:linear-gradient(180deg,#F1F7F3 0%,var(--bg) 62%)}
.gh-hero::before{content:"";position:absolute;left:0;right:0;top:0;height:46%;background:linear-gradient(135deg,var(--brand-1),var(--brand-2) 55%,var(--brand-3));opacity:.09;pointer-events:none}
.gh-hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:36px;align-items:start}
.gh-ribbon{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid rgba(240,161,60,.55);color:#8A5A12;font-size:12.5px;font-weight:600;letter-spacing:.02em;box-shadow:var(--shadow-1)}
.gh-ribbon i{width:7px;height:7px;border-radius:999px;background:var(--accent);flex:0 0 auto}
.gh-hero-title{margin-top:16px;font-size:clamp(28px,4vw,44px);line-height:1.24;font-weight:700;letter-spacing:-.01em}
.gh-hero-title span{background:linear-gradient(180deg,transparent 62%,rgba(240,161,60,.4) 62%);padding:0 2px}
.gh-hero-sub{margin-top:14px;font-size:15.5px;color:var(--ink-2);line-height:1.9;max-width:640px}
.gh-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.gh-hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.gh-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.8);font-size:12.5px;color:var(--ink-2)}
.gh-chip b{color:var(--brand-1);font-variant-numeric:tabular-nums}

.gh-hero-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px;box-shadow:var(--shadow-1)}
.gh-panel-visual{border-radius:var(--radius-md);border:1px solid var(--line);background:linear-gradient(160deg,#EAF3EE,#F8F5EF);padding:14px;aspect-ratio:4/3;display:grid;place-items:center;overflow:hidden}
.gh-panel-visual svg{width:100%;height:100%}
.gh-badge-stack{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:12px}
.gh-data-mini{border:1px solid var(--line);border-radius:14px;background:#FBFAF7;padding:10px 12px;min-width:0}
.gh-data-mini b{display:block;font-size:20px;line-height:1.2;color:var(--brand-1);font-variant-numeric:tabular-nums}
.gh-data-mini span{display:block;font-size:12px;color:var(--ink-2);line-height:1.5;margin-top:2px}

/* section */
.gh-section{padding:48px 0}
@media(min-width:768px){.gh-section{padding:72px 0}}
@media(min-width:1024px){.gh-section{padding:88px 0}}
.gh-section--white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.gh-section--tint{background:linear-gradient(180deg,#F6F9F6,#F7F4EE);border-top:1px solid var(--line)}
.gh-section--dark{background:var(--deep);color:#E7F0EB}
.gh-section-head{max-width:820px;margin-bottom:28px}
.gh-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.12em;color:var(--brand-2);text-transform:uppercase}
.gh-eyebrow::before{content:"";width:22px;height:3px;border-radius:999px;background:linear-gradient(90deg,var(--brand-1),var(--brand-3))}
.gh-h2{display:flex;align-items:flex-start;gap:12px;margin-top:10px;font-size:clamp(21px,2.6vw,29px);line-height:1.4;font-weight:700}
.gh-h2::before{content:"";flex:0 0 auto;width:4px;height:24px;margin-top:6px;border-radius:999px;background:linear-gradient(180deg,var(--brand-1),var(--brand-3))}
.gh-lead{margin-top:12px;font-size:15px;color:var(--ink-2);line-height:1.9}
.gh-section--dark .gh-lead{color:#B7CAC2}
.gh-section--dark .gh-eyebrow{color:var(--brand-3)}
.gh-h3{font-size:17px;font-weight:600;line-height:1.6}

/* download */
.gh-download-band{position:relative;overflow:hidden;border-radius:26px;padding:30px;color:#EAF2ED;background:radial-gradient(120% 140% at 0% 0%,#1D4E43 0%,#123329 46%,#0E211D 100%);box-shadow:var(--shadow-2)}
.gh-download-band::after{content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:999px;background:radial-gradient(circle,rgba(127,200,169,.28),transparent 68%);pointer-events:none}
.gh-dl-head{position:relative;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px}
.gh-dl-head h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;line-height:1.4}
.gh-dl-head p{margin-top:8px;font-size:14px;color:#B7CAC2;max-width:620px;line-height:1.85}
.gh-dl-grid{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.gh-dl-btn{display:flex;align-items:center;gap:12px;padding:16px;border-radius:18px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);color:#fff;transition:background .2s,transform .2s,border-color .2s;min-width:0}
.gh-dl-btn:hover{background:rgba(255,255,255,.16);border-color:rgba(127,200,169,.6);transform:translateY(-2px)}
.gh-dl-btn:active{transform:translateY(0)}
.gh-dl-icon{width:40px;height:40px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;background:rgba(127,200,169,.18);border:1px solid rgba(127,200,169,.34)}
.gh-dl-icon svg{width:20px;height:20px;stroke:#D9F0E5}
.gh-dl-txt{min-width:0}
.gh-dl-txt strong{display:block;font-size:15px;font-weight:600}
.gh-dl-txt em{display:block;font-size:12px;color:#A9C3BA;margin-top:2px;word-break:break-word}
.gh-dl-note{position:relative;margin-top:14px;font-size:12.5px;color:#9FB8AF}

/* metrics */
.gh-metrics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.gh-metric{display:flex;flex-direction:column;gap:8px;min-width:0;padding:18px;border-radius:var(--radius-md);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s}
.gh-metric:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.gh-tag{display:inline-flex;align-items:center;gap:5px;align-self:flex-start;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:rgba(47,122,99,.1);color:var(--brand-1);border:1px solid rgba(47,122,99,.2)}
.gh-tag--accent{background:rgba(240,161,60,.14);color:#8A5A12;border-color:rgba(240,161,60,.4)}
.gh-tag--warn{background:rgba(228,87,61,.1);color:#9C3323;border-color:rgba(228,87,61,.35)}
.gh-metric-num{font-size:30px;line-height:1;font-weight:700;color:var(--brand-1);font-variant-numeric:tabular-nums}
.gh-metric p{font-size:13.5px;color:var(--ink-2);line-height:1.75}
.gh-metric-bar{margin-top:auto;height:4px;border-radius:999px;background:#EDE9DF;overflow:hidden}
.gh-metric-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-2),var(--brand-3))}

/* split */
.gh-split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.gh-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-1);min-width:0}
.gh-list-check{display:flex;flex-direction:column;gap:14px;margin-top:18px}
.gh-list-check li{display:flex;gap:12px;font-size:14.5px;line-height:1.8;color:var(--ink)}
.gh-list-check li .gh-ico{width:24px;height:24px;flex:0 0 auto;border-radius:999px;display:grid;place-items:center;margin-top:3px}
.gh-ico--ok{background:rgba(47,122,99,.12)}
.gh-ico--ok svg{width:14px;height:14px;stroke:var(--brand-2)}
.gh-list-check li b{font-weight:600}
.gh-list-check li span{display:block;color:var(--ink-2);font-size:13.5px}

.gh-flow{display:flex;flex-direction:column;margin-top:6px}
.gh-flow-item{position:relative;display:flex;gap:12px;padding-bottom:20px}
.gh-flow-item:last-child{padding-bottom:0}
.gh-flow-num{width:32px;height:32px;flex:0 0 auto;border-radius:999px;display:grid;place-items:center;font-size:13.5px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--brand-1),var(--brand-3))}
.gh-flow-item:not(:last-child) .gh-flow-num::after{content:"";position:absolute;left:15.5px;top:38px;bottom:6px;width:1.5px;background:linear-gradient(180deg,var(--brand-3),var(--line))}
.gh-flow-txt{min-width:0}
.gh-flow-txt strong{display:block;font-size:15px;font-weight:600}
.gh-flow-txt span{display:block;font-size:13.5px;color:var(--ink-2);line-height:1.8;margin-top:2px}

/* bento */
.gh-bento{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.gh-bento-item{display:flex;flex-direction:column;gap:10px;min-width:0;padding:22px;border-radius:var(--radius-lg);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s,border-color .2s}
.gh-bento-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(47,122,99,.3)}
.gh-bento-item p{font-size:14px;color:var(--ink-2);line-height:1.85}
.gh-bento .gh-span-2{grid-column:span 2}
.gh-bento-visual{border-radius:14px;background:linear-gradient(150deg,#EDF5F0,#F8F5EF);border:1px solid var(--line);padding:12px;margin-bottom:2px}
.gh-bento-visual svg{display:block;width:100%;height:auto}

/* compare */
.gh-filter-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.gh-filter{display:inline-flex;align-items:center;min-height:36px;padding:0 14px;border-radius:999px;font-size:13px;color:var(--brand-1);background:#fff;border:1px solid var(--line);transition:background .2s,border-color .2s}
.gh-filter:hover{background:#F0F7F3;border-color:rgba(47,122,99,.4)}
.gh-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.gh-compare-col{padding:24px;min-width:0}
.gh-compare-col + .gh-compare-col{border-left:1px solid var(--line)}
.gh-compare-col h3{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700}
.gh-compare-col .gh-dot{width:8px;height:8px;border-radius:999px;flex:0 0 auto}
.gh-dot--ok{background:var(--brand-2)}
.gh-dot--warn{background:var(--warn)}
.gh-compare-list{margin-top:14px;display:flex;flex-direction:column;gap:12px}
.gh-compare-list li{display:flex;gap:10px;font-size:14px;line-height:1.8;color:var(--ink-2)}
.gh-compare-list li svg{width:16px;height:16px;flex:0 0 auto;margin-top:6px}

/* timeline */
.gh-timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:12px}
.gh-tl-node{position:relative;min-width:0;padding:52px 18px 18px;border-radius:var(--radius-md);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s}
.gh-tl-node:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.gh-tl-node::before{content:"";position:absolute;top:22px;left:18px;width:12px;height:12px;border-radius:999px;background:#fff;border:2.5px solid var(--brand-2)}
.gh-tl-line{position:absolute;top:27px;left:34px;right:-16px;height:2px;background:linear-gradient(90deg,var(--brand-3),rgba(227,222,210,.9))}
.gh-tl-node:last-child .gh-tl-line{display:none}
.gh-tl-node span{display:block;font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--brand-2)}
.gh-tl-node strong{display:block;margin-top:4px;font-size:15.5px;font-weight:700}
.gh-tl-node p{margin-top:6px;font-size:13.5px;color:var(--ink-2);line-height:1.8}

/* posts */
.gh-posts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.gh-post{display:flex;flex-direction:column;gap:10px;min-width:0;padding:20px;border-radius:var(--radius-md);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s,border-color .2s}
.gh-post:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(47,122,99,.3)}
.gh-post:hover h3{color:var(--brand-2)}
.gh-post h3{font-size:16.5px;font-weight:600;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s;overflow-wrap:anywhere}
.gh-post p{font-size:13.5px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.gh-post-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:auto;font-size:12.5px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.gh-post-link{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand-2)}
.gh-post-link svg{width:14px;height:14px;stroke:var(--brand-2);transition:transform .2s}
.gh-post:hover .gh-post-link svg{transform:translateX(3px)}
.gh-empty{grid-column:1/-1;padding:40px 24px;text-align:center;border-radius:var(--radius-md);border:1px dashed var(--line);background:#FBFAF7;color:var(--ink-2);font-size:14px}

/* dark band */
.gh-guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.gh-guard{padding:20px;border-radius:var(--radius-md);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);min-width:0;transition:background .2s,transform .2s}
.gh-guard:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.gh-guard-icon{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;border:1px solid rgba(127,200,169,.4);background:rgba(127,200,169,.12);margin-bottom:12px}
.gh-guard-icon svg{width:18px;height:18px;stroke:var(--brand-3)}
.gh-guard strong{display:block;font-size:15px;font-weight:600;color:#fff}
.gh-guard p{margin-top:6px;font-size:13.5px;color:#AFC5BD;line-height:1.8}

/* quick answers */
.gh-quick{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.gh-quick-card{padding:22px;border-radius:var(--radius-md);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);min-width:0}
.gh-quick-card h3{font-size:15.5px;font-weight:700;line-height:1.6;color:var(--brand-1)}
.gh-quick-card p{margin-top:10px;font-size:13.8px;color:var(--ink-2);line-height:1.85}

/* faq */
.gh-faq-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);transition:border-color .2s,box-shadow .2s}
.gh-faq-item:hover{border-color:rgba(47,122,99,.35)}
.gh-faq-item[open]{border-color:rgba(47,122,99,.45);box-shadow:inset 3px 0 0 var(--brand-2),var(--shadow-1)}
.gh-faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;font-size:15.5px;font-weight:600;line-height:1.6;cursor:pointer;list-style:none}
.gh-faq-q::-webkit-details-marker{display:none}
.gh-faq-q::-moz-list-bullet{display:none}
.gh-faq-icon{position:relative;width:24px;height:24px;flex:0 0 auto;border-radius:999px;border:1px solid var(--line);background:#FBFAF7;display:grid;place-items:center;transition:background .2s,border-color .2s,transform .2s}
.gh-faq-icon::before,.gh-faq-icon::after{content:"";position:absolute;background:var(--brand-1);border-radius:2px}
.gh-faq-icon::before{width:11px;height:1.6px}
.gh-faq-icon::after{width:1.6px;height:11px;transition:transform .2s,opacity .2s}
.gh-faq-item[open] .gh-faq-icon{background:rgba(47,122,99,.14);border-color:rgba(47,122,99,.4)}
.gh-faq-item[open] .gh-faq-icon::after{transform:rotate(90deg);opacity:0}
.gh-faq-a{padding:0 20px 20px;font-size:14.3px;color:var(--ink-2);line-height:1.9;animation:ghFade .22s ease-out}
@keyframes ghFade{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* form */
.gh-form-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.95fr);gap:32px;align-items:start}
.gh-form-points{display:flex;flex-direction:column;gap:14px;margin-top:20px}
.gh-form-points li{display:flex;gap:12px;font-size:14.5px;line-height:1.8;color:var(--ink-2)}
.gh-form-points li b{display:block;color:var(--ink);font-weight:600}
.gh-form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-1)}
.gh-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.gh-field label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.gh-field label .gh-req{color:var(--warn);margin-left:2px}
.gh-field input,.gh-field select,.gh-field textarea{width:100%;padding:11px 14px;border:1.5px solid var(--line);border-radius:12px;background:#FBFAF7;font-family:inherit;font-size:15px;color:var(--ink);line-height:1.6;transition:border-color .2s,box-shadow .2s,background .2s}
.gh-field textarea{min-height:96px;resize:vertical}
.gh-field input:focus,.gh-field select:focus,.gh-field textarea:focus{outline:none;border-color:var(--brand-2);background:#fff;box-shadow:0 0 0 4px rgba(47,122,99,.13)}
.gh-form-note{margin-top:12px;font-size:12.5px;color:var(--ink-2);line-height:1.75}

/* glossary */
.gh-terms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.gh-term{padding:16px 18px;border-radius:var(--radius-md);background:#fff;border:1px solid var(--line);min-width:0;transition:border-color .2s,transform .2s}
.gh-term:hover{border-color:rgba(47,122,99,.35);transform:translateY(-2px)}
.gh-term dt{font-size:15px;font-weight:700;color:var(--brand-1)}
.gh-term dd{margin:6px 0 0;font-size:13.8px;color:var(--ink-2);line-height:1.8}

/* topics */
.gh-topics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.gh-topic{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px;border-radius:var(--radius-md);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-1);min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s}
.gh-topic:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(47,122,99,.35)}
.gh-topic-txt{min-width:0}
.gh-topic-txt strong{display:block;font-size:15.5px;font-weight:700}
.gh-topic-txt span{display:block;margin-top:4px;font-size:13.5px;color:var(--ink-2);line-height:1.75}
.gh-topic-arrow{width:32px;height:32px;flex:0 0 auto;border-radius:999px;border:1px solid var(--line);display:grid;place-items:center;transition:transform .2s,background .2s}
.gh-topic-arrow svg{width:15px;height:15px;stroke:var(--brand-1)}
.gh-topic:hover .gh-topic-arrow{transform:translateX(4px);background:#F0F7F3}

/* disclaimer */
.gh-disclaimer{display:flex;gap:16px;padding:24px;border-radius:var(--radius-lg);border:1.5px solid rgba(228,87,61,.45);background:rgba(228,87,61,.06)}
.gh-disclaimer svg{width:24px;height:24px;flex:0 0 auto;stroke:var(--warn);margin-top:2px}
.gh-disclaimer h3{font-size:15.5px;font-weight:700;color:#9C3323}
.gh-disclaimer p{margin-top:6px;font-size:13.8px;color:#6B4A42;line-height:1.9}

/* footer */
.gh-footer{background:var(--deep);color:#C6D6CF;padding:56px 0 22px;margin-top:0}
.gh-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.gh-footer h4{font-size:14.5px;font-weight:600;color:#fff;margin-bottom:12px;letter-spacing:.02em}
.gh-footer p{font-size:13.5px;line-height:1.9;color:#9FB8AF}
.gh-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.gh-footer-brand .gh-logo-mark{width:36px;height:36px;font-size:16px;border-radius:10px}
.gh-footer-brand strong{font-size:15.5px;color:#fff}
.gh-footer-brand em{display:block;font-size:11.5px;color:#8FA6A0;letter-spacing:.08em}
.gh-footer-links a{display:block;font-size:13.8px;color:#C6D6CF;padding:5px 0;transition:color .2s,transform .2s}
.gh-footer-links a:hover{color:#fff;transform:translateX(2px)}
.gh-footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 20px;margin-top:32px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:#8FA6A0}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* responsive */
@media(max-width:1100px){
  .gh-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}
  .gh-guard-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gh-quick{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:1023px){
  .gh-menu-btn{display:inline-flex}
  .gh-nav{display:none;width:100%;flex-direction:column;align-items:stretch;gap:4px;padding:10px 0 14px;border-top:1px solid var(--line);margin-top:4px}
  .gh-nav.is-open{display:flex}
  .gh-nav-link{justify-content:flex-start;min-height:48px;font-size:15.5px;border-radius:12px;padding:0 14px}
  .gh-nav-cta{margin:6px 0 0;width:100%;min-height:48px}
  .gh-hero-inner{grid-template-columns:1fr;gap:28px}
  .gh-panel-visual{aspect-ratio:16/9}
  .gh-bento{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gh-bento .gh-span-2{grid-column:span 2}
  .gh-timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gh-tl-line{display:none}
  .gh-form-wrap{grid-template-columns:1fr;gap:24px}
  .gh-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gh-dl-grid{grid-template-columns:1fr}
  .gh-posts{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:900px){
  .gh-split{grid-template-columns:1fr}
  .gh-compare{grid-template-columns:1fr}
  .gh-compare-col + .gh-compare-col{border-left:none;border-top:1px solid var(--line)}
  .gh-terms{grid-template-columns:1fr}
  .gh-topics{grid-template-columns:1fr}
  .gh-guard-grid{grid-template-columns:1fr}
}
@media(max-width:767px){
  .gh-hero{padding:26px 0 44px}
  .gh-section{padding:44px 0}
  .gh-download-band{padding:22px;border-radius:20px}
  .gh-metrics{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gh-quick{grid-template-columns:1fr}
  .gh-badge-stack{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gh-card,.gh-form-card{padding:18px}
  .gh-logo-text strong{font-size:15.5px}
  .gh-logo-text em{font-size:11px}
}
@media(max-width:520px){
  .gh-metrics{grid-template-columns:1fr}
  .gh-bento{grid-template-columns:1fr}
  .gh-bento .gh-span-2{grid-column:span 1}
  .gh-timeline{grid-template-columns:1fr}
  .gh-posts{grid-template-columns:1fr}
  .gh-footer-grid{grid-template-columns:1fr}
  .gh-hero-actions .gh-btn{width:100%}
  .gh-disclaimer{flex-direction:column;gap:10px}
  .gh-step{font-size:12px;padding-right:10px}
  .gh-step-line{width:10px}
}

/* roulang page: article */
:root{
  --ink:#12211D;--ink-2:#5B6B66;--line:#E3DED2;--bg:#F7F4EE;--card:#FFFFFF;--deep:#0E211D;
  --brand-1:#173E36;--brand-2:#2F7A63;--brand-3:#7FC8A9;
  --accent:#F0A13C;--warn:#E4573D;
  --radius-lg:22px;--radius-md:16px;--radius-sm:12px;
  --shadow-1:0 1px 2px rgba(18,33,29,.05),0 8px 24px -16px rgba(18,33,29,.35);
  --shadow-2:0 14px 34px -18px rgba(18,33,29,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35}
p{margin:0}
ul,ol{margin:0}
.gh-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
/* header */
.gh-header{position:sticky;top:0;z-index:60;background:rgba(247,244,238,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:background .2s,box-shadow .2s}
.gh-header.is-scrolled{background:rgba(255,255,255,.94);box-shadow:0 6px 20px -18px rgba(18,33,29,.6)}
.gh-header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;flex-wrap:wrap}
.gh-logo{display:flex;align-items:center;gap:10px;min-width:0;flex:0 0 auto}
.gh-logo-mark{width:40px;height:40px;flex:0 0 auto;border-radius:12px;background:linear-gradient(135deg,var(--brand-1),var(--brand-2) 58%,var(--brand-3));color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;letter-spacing:.04em}
.gh-logo-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.gh-logo-text strong{font-size:17px;letter-spacing:.03em;color:var(--ink)}
.gh-logo-text em{font-size:11.5px;letter-spacing:.1em;color:var(--ink-2);font-style:normal}
.gh-nav{display:flex;align-items:center;gap:2px;flex-wrap:wrap}
.gh-nav-link{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:999px;font-size:14.5px;color:var(--ink-2);transition:color .2s,background .2s}
.gh-nav-link:hover{color:var(--brand-1);background:rgba(47,122,99,.08)}
.gh-nav-link.is-active{color:var(--brand-1);font-weight:600;background:rgba(47,122,99,.12)}
.gh-nav-cta{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;margin-left:10px;border-radius:999px;font-size:14.5px;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--brand-1),var(--brand-2));box-shadow:0 10px 22px -16px rgba(23,62,54,.95);transition:filter .2s,transform .2s}
.gh-nav-cta:hover{filter:brightness(1.08);transform:translateY(-1px)}
.gh-menu-btn{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.gh-menu-btn svg{width:20px;height:20px;stroke:var(--brand-1);fill:none}
.gh-steps-wrap{border-top:1px solid var(--line);background:rgba(255,255,255,.62)}
.gh-steps{display:flex;align-items:center;gap:8px;list-style:none;margin:0;padding:8px 0;font-size:13px;overflow-x:auto;scrollbar-width:none}
.gh-steps::-webkit-scrollbar{display:none}
.gh-step{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;color:var(--ink-2);padding:4px 10px;border-radius:999px;min-height:36px;transition:background .2s,color .2s}
.gh-step:hover{background:rgba(47,122,99,.08);color:var(--brand-1)}
.gh-step-dot{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);font-size:12px;background:#fff;font-variant-numeric:tabular-nums}
.gh-step.is-current{color:var(--brand-1);font-weight:600}
.gh-step.is-current .gh-step-dot{background:linear-gradient(135deg,var(--brand-1),var(--brand-2));color:#fff;border-color:transparent}
.gh-step-line{flex:1 1 auto;min-width:14px;height:1px;background:var(--line)}
/* buttons */
.gh-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;border:1.5px solid transparent;transition:filter .2s,transform .2s,box-shadow .2s,background .2s,color .2s;text-align:center}
.gh-btn-main{color:#fff;background:linear-gradient(135deg,var(--brand-1),var(--brand-2));box-shadow:0 12px 26px -18px rgba(23,62,54,.95)}
.gh-btn-main:hover{filter:brightness(1.09);box-shadow:var(--shadow-2)}
.gh-btn-main:active{transform:translateY(1px)}
.gh-btn-ghost{background:#fff;border-color:var(--brand-1);color:var(--brand-1)}
.gh-btn-ghost:hover{background:#F0F7F3}
.gh-btn-ghost:active{transform:translateY(1px)}
.gh-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
/* article page */
.ar-hero{position:relative;padding:28px 0 34px;background:linear-gradient(180deg,#F1F7F3 0%,var(--bg) 78%);border-bottom:1px solid var(--line);overflow:hidden}
.ar-hero::before{content:"";position:absolute;left:0;right:0;top:0;height:60%;background:linear-gradient(135deg,var(--brand-1),var(--brand-2) 55%,var(--brand-3));opacity:.07;pointer-events:none}
.ar-crumb{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);margin-bottom:14px}
.ar-crumb a{color:var(--brand-2);text-underline-offset:4px}
.ar-crumb a:hover{text-decoration:underline}
.ar-crumb span.sep{color:var(--line)}
.ar-tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;border:1px solid rgba(47,122,99,.28);background:rgba(47,122,99,.1);color:var(--brand-1);font-size:12.5px;font-weight:600;transition:background .2s}
.ar-tag:hover{background:rgba(47,122,99,.18)}
.ar-title{position:relative;margin-top:12px;font-size:clamp(24px,3.2vw,38px);line-height:1.3;font-weight:700;letter-spacing:-.01em;max-width:900px;overflow-wrap:break-word}
.ar-meta{position:relative;display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;font-size:13px;color:var(--ink-2)}
.ar-meta-item{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.85);font-variant-numeric:tabular-nums}
/* summary */
.ar-summary{position:relative;margin-top:26px;border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--card);padding:20px 22px;box-shadow:var(--shadow-1)}
.ar-summary::before{content:"";position:absolute;left:0;top:18px;bottom:18px;width:4px;border-radius:999px;background:linear-gradient(180deg,var(--brand-1),var(--brand-3))}
.ar-summary h2{font-size:16px;font-weight:700;color:var(--brand-1);padding-left:8px}
.ar-summary p{margin-top:8px;padding-left:8px;font-size:15px;color:var(--ink-2);line-height:1.9;overflow-wrap:break-word}
/* layout */
.ar-main{padding:48px 0 72px}
.ar-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(0,268px);gap:36px;align-items:start;justify-content:center}
.ar-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-1);padding:26px 26px 30px;min-width:0}
.ar-body{font-size:16px;line-height:1.9;color:var(--ink);overflow-wrap:break-word}
.ar-body>*+*{margin-top:18px}
.ar-body p{font-size:16px;line-height:1.9}
.ar-body h2{position:relative;margin-top:40px;padding-left:14px;font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.45}
.ar-body h2::before{content:"";position:absolute;left:0;top:.32em;width:4px;height:24px;border-radius:999px;background:linear-gradient(180deg,var(--brand-1),var(--brand-3))}
.ar-body h3{margin-top:28px;font-size:19px;font-weight:600;line-height:1.5}
.ar-body ul,.ar-body ol{padding-left:1.4em}
.ar-body li{margin-top:8px;line-height:1.85}
.ar-body ul li::marker{color:var(--brand-3)}
.ar-body a{color:var(--brand-2);text-underline-offset:4px;border-bottom:1px solid rgba(47,122,99,.35)}
.ar-body a:hover{border-bottom-color:var(--brand-2)}
.ar-body strong{color:var(--brand-1)}
.ar-body blockquote{margin:24px 0;padding:14px 18px;border-left:4px solid var(--brand-2);border-radius:0 var(--radius-sm) var(--radius-sm) 0;background:#F6F9F6;color:var(--ink-2)}
.ar-body blockquote p{font-size:15.5px}
.ar-body img{display:block;max-width:100%;height:auto;border-radius:var(--radius-md);border:1px solid var(--line)}
.ar-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden}
.ar-body th,.ar-body td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.ar-body th{background:#F6F9F6;color:var(--brand-1);font-weight:600}
.ar-body tr:last-child td{border-bottom:none}
/* toc */
.ar-side{display:grid;gap:18px;position:sticky;top:96px}
.ar-toc-card{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--card);box-shadow:var(--shadow-1);padding:16px 18px}
.ar-toc-card h3{font-size:14px;font-weight:700;color:var(--brand-1);letter-spacing:.04em;margin-bottom:10px}
.ar-toc ul{list-style:none;padding:0;margin:0;border-left:1px solid var(--line)}
.ar-toc li{position:relative;min-width:0}
.ar-toc a{display:block;padding:6px 10px;font-size:13.5px;line-height:1.6;color:var(--ink-2);border-left:2px solid transparent;margin-left:-1px;transition:color .2s,border-color .2s,background .2s;overflow-wrap:break-word}
.ar-toc a:hover{color:var(--brand-2);border-left-color:var(--brand-3);background:#F6F9F6}
.ar-toc .ar-toc-sub a{padding-left:22px;font-size:13px;color:#7A8B85}
.ar-dl-card{border:1px solid var(--line);border-radius:var(--radius-md);background:linear-gradient(160deg,#F3F8F5,#FFFFFF);box-shadow:var(--shadow-1);padding:16px 18px}
.ar-dl-card h3{font-size:14px;font-weight:700;color:var(--brand-1);margin-bottom:6px}
.ar-dl-card p{font-size:13px;color:var(--ink-2);line-height:1.7}
.ar-dl-card .gh-btn{width:100%;margin-top:8px;min-height:42px;font-size:14px}
/* risk */
.ar-risk{margin-top:34px;border:1px solid rgba(228,87,61,.4);background:#FDF4F2;border-radius:var(--radius-lg);padding:20px 22px;display:flex;gap:14px;align-items:flex-start}
.ar-risk-icon{flex:0 0 auto;width:36px;height:36px;border-radius:12px;background:rgba(228,87,61,.12);display:grid;place-items:center}
.ar-risk-icon svg{width:20px;height:20px;stroke:var(--warn);fill:none}
.ar-risk h2{font-size:16px;font-weight:700;color:#B33A26}
.ar-risk p{margin-top:6px;font-size:14.5px;color:#7C4A3F;line-height:1.85}
/* next */
.ar-next{margin-top:34px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.ar-next-card{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--card);padding:18px;box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s;min-width:0}
.ar-next-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.ar-next-card h3{font-size:15px;font-weight:600;color:var(--ink)}
.ar-next-card p{margin-top:6px;font-size:13.5px;color:var(--ink-2);line-height:1.75}
.ar-next-card .ar-arrow{display:inline-block;margin-top:10px;font-size:13.5px;color:var(--brand-2);font-weight:600}
.ar-next-card:hover .ar-arrow{text-decoration:underline;text-underline-offset:4px}
/* download band */
.ar-download{margin-top:34px;border-radius:var(--radius-lg);background:linear-gradient(150deg,var(--deep),#16423A 65%,#1E5548);color:#E7F0EB;padding:26px;box-shadow:var(--shadow-2)}
.ar-download h2{font-size:20px;font-weight:700;color:#fff}
.ar-download p{margin-top:8px;font-size:14px;color:#B7CAC2;line-height:1.8}
.ar-dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}
.ar-dl-btn{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:14px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#EAF4EF;font-size:14px;font-weight:600;transition:background .2s,transform .2s,border-color .2s;min-width:0;min-height:48px}
.ar-dl-btn:hover{background:rgba(255,255,255,.14);border-color:rgba(127,200,169,.6);transform:translateY(-2px)}
.ar-dl-btn svg{width:18px;height:18px;flex:0 0 auto;stroke:var(--brand-3);fill:none}
.ar-dl-note{margin-top:12px;font-size:12.5px;color:#9FB8AF}
/* empty */
.ar-empty{border:1px dashed var(--line);border-radius:var(--radius-md);background:#FBFAF7;padding:36px 22px;text-align:center}
.ar-empty h2{font-size:19px;font-weight:700;color:var(--brand-1)}
.ar-empty p{margin-top:10px;font-size:14.5px;color:var(--ink-2)}
.ar-empty .gh-btn{margin-top:18px}
/* footer */
.gh-footer{background:var(--deep);color:#C9DAD3;padding:56px 0 22px}
.gh-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:28px}
.gh-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.gh-footer-brand strong{display:block;color:#fff;font-size:16px;letter-spacing:.03em}
.gh-footer-brand em{display:block;font-size:11.5px;letter-spacing:.1em;color:#8FA8A0;font-style:normal}
.gh-footer h4{margin:0 0 12px;font-size:14px;color:#fff;letter-spacing:.06em}
.gh-footer p{font-size:13.5px;line-height:1.9;color:#A9C1B8}
.gh-footer-links{display:grid;gap:8px}
.gh-footer-links a{font-size:13.5px;color:#A9C1B8;transition:color .2s,transform .2s;width:fit-content}
.gh-footer-links a:hover{color:var(--brand-3);transform:translateX(2px)}
.gh-footer-bottom{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;margin-top:32px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:#8FA8A0}
@media (max-width:1024px){
  .gh-container{padding:0 20px}
  .ar-layout{grid-template-columns:minmax(0,1fr);gap:24px}
  .ar-side{position:static;order:-1}
  .gh-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
}
@media (max-width:768px){
  .gh-header-inner{min-height:62px}
  .gh-menu-btn{display:inline-flex}
  .gh-nav{display:none;width:100%;flex-direction:column;align-items:stretch;gap:4px;padding:8px 0 14px}
  .gh-nav.is-open{display:flex}
  .gh-nav-link{width:100%;justify-content:flex-start;padding:0 14px}
  .gh-nav-cta{margin-left:0;margin-top:6px;width:100%}
  .ar-main{padding:32px 0 56px}
  .ar-panel{padding:20px 18px 24px}
  .ar-next{grid-template-columns:minmax(0,1fr)}
  .ar-dl-grid{grid-template-columns:minmax(0,1fr)}
  .ar-body table{display:block;overflow-x:auto;white-space:nowrap}
  .ar-summary{padding:18px}
}
@media (max-width:520px){
  .gh-container{padding:0 16px}
  .ar-risk{flex-direction:column;gap:10px}
  .ar-meta{font-size:12.5px}
  .ar-download{padding:20px}
  .gh-footer-grid{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --ink:#12211D;--ink-2:#5B6B66;--line:#E3DED2;--bg:#F7F4EE;--card:#FFFFFF;--deep:#0E211D;
  --brand-1:#173E36;--brand-2:#2F7A63;--brand-3:#7FC8A9;
  --accent:#F0A13C;--warn:#E4573D;
  --radius-lg:22px;--radius-md:16px;--radius-sm:12px;
  --shadow-1:0 1px 2px rgba(18,33,29,.05),0 8px 24px -16px rgba(18,33,29,.35);
  --shadow-2:0 14px 34px -18px rgba(18,33,29,.45);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.gh-page{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0}
.gh-container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media(max-width:1023px){.gh-container{padding:0 24px}}
@media(max-width:639px){.gh-container{padding:0 16px}}
/* header */
.gh-header{position:sticky;top:0;z-index:60;background:rgba(247,244,238,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:background .2s,box-shadow .2s}
.gh-header.is-scrolled{background:rgba(255,255,255,.96);box-shadow:0 6px 20px -18px rgba(18,33,29,.6)}
.gh-header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px;flex-wrap:wrap}
.gh-logo{display:flex;align-items:center;gap:10px;min-width:0;flex:0 0 auto}
.gh-logo-mark{width:40px;height:40px;flex:0 0 auto;border-radius:12px;background:linear-gradient(135deg,var(--brand-1),var(--brand-2) 58%,var(--brand-3));color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;letter-spacing:.04em}
.gh-logo-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.gh-logo-text strong{font-size:17px;letter-spacing:.03em;color:var(--ink)}
.gh-logo-text em{font-size:11.5px;font-style:normal;letter-spacing:.1em;color:var(--ink-2)}
.gh-nav{display:flex;align-items:center;gap:2px}
.gh-nav-link{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;border-radius:999px;font-size:14.5px;color:var(--ink-2);transition:color .2s,background .2s}
.gh-nav-link:hover{color:var(--brand-1);background:rgba(47,122,99,.08)}
.gh-nav-link.is-active{color:var(--brand-1);font-weight:600;background:rgba(47,122,99,.12)}
.gh-nav-cta{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;margin-left:10px;border-radius:999px;font-size:14.5px;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--brand-1),var(--brand-2));box-shadow:0 10px 22px -16px rgba(23,62,54,.95);transition:filter .2s,transform .2s}
.gh-nav-cta:hover{filter:brightness(1.08);transform:translateY(-1px)}
.gh-nav-cta:active{transform:translateY(0)}
.gh-menu-btn{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.gh-menu-btn svg{width:20px;height:20px;stroke:var(--brand-1)}
.gh-steps-wrap{border-top:1px solid rgba(227,222,210,.75);background:rgba(255,255,255,.55)}
.gh-steps{display:flex;align-items:center;gap:8px;padding:10px 0;overflow-x:auto;scrollbar-width:none}
.gh-steps::-webkit-scrollbar{display:none}
.gh-step{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;font-size:13px;color:var(--ink-2);padding:5px 12px 5px 6px;border-radius:999px;border:1px solid transparent;transition:background .2s,color .2s}
.gh-step:hover{background:rgba(47,122,99,.08);color:var(--brand-1)}
.gh-step-dot{width:22px;height:22px;flex:0 0 auto;border-radius:50%;border:1.5px solid var(--brand-2);background:#fff;color:var(--brand-1);display:grid;place-items:center;font-size:12px;font-variant-numeric:tabular-nums}
.gh-step.is-current{background:linear-gradient(135deg,var(--brand-1),var(--brand-2));color:#fff;font-weight:600}
.gh-step.is-current .gh-step-dot{border-color:rgba(255,255,255,.75);background:rgba(255,255,255,.2);color:#fff}
.gh-step-line{width:24px;height:2px;flex:0 0 auto;border-radius:999px;background:linear-gradient(90deg,var(--brand-3),var(--line))}
/* buttons */
.gh-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;border:1.5px solid transparent;transition:filter .2s,transform .2s,box-shadow .2s,background .2s,color .2s;text-align:center}
.gh-btn-main{color:#fff;background:linear-gradient(135deg,var(--brand-1),var(--brand-2));box-shadow:0 12px 26px -18px rgba(23,62,54,.95)}
.gh-btn-main:hover{filter:brightness(1.09);box-shadow:var(--shadow-2)}
.gh-btn-main:active{transform:translateY(1px)}
.gh-btn-ghost{background:#fff;border-color:var(--brand-1);color:var(--brand-1)}
.gh-btn-ghost:hover{background:#F0F7F3}
.gh-btn-ghost:active{transform:translateY(1px)}
.gh-btn:focus-visible,.gh-nav-link:focus-visible,.gh-step:focus-visible,.gh-menu-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.gh-btn-mini{min-height:40px;padding:0 16px;font-size:14px}
/* section base */
.gh-section{padding:48px 0}
.gh-section--white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.gh-section--tint{background:linear-gradient(180deg,#F6F9F6,#F7F4EE);border-top:1px solid var(--line)}
.gh-section-head{max-width:820px;margin-bottom:26px}
.gh-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.12em;color:var(--brand-2)}
.gh-eyebrow::before{content:"";width:22px;height:3px;border-radius:999px;background:linear-gradient(90deg,var(--brand-1),var(--brand-3))}
.gh-h2{position:relative;padding-left:15px;font-size:clamp(21px,2.4vw,27px);line-height:1.4;font-weight:700;margin-top:10px}
.gh-h2::before{content:"";position:absolute;left:0;top:.3em;width:4px;height:1.05em;border-radius:999px;background:linear-gradient(180deg,var(--brand-1),var(--brand-3))}
.gh-lead{margin-top:12px;font-size:15px;color:var(--ink-2);line-height:1.9}
/* category head */
.gh-cat-head{position:relative;overflow:hidden;padding:22px 0 40px;background:linear-gradient(180deg,#F1F7F3 0%,var(--bg) 78%);border-bottom:1px solid var(--line)}
.gh-cat-head::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(47,122,99,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(47,122,99,.08) 1px,transparent 1px);background-size:34px 34px;opacity:.55;pointer-events:none}
.gh-cat-head-inner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,220px);gap:28px;align-items:end}
.gh-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);flex-wrap:wrap}
.gh-crumb a{color:var(--brand-2)}
.gh-crumb a:hover{text-decoration:underline;text-underline-offset:4px}
.gh-crumb span{color:var(--ink-2)}
.gh-cat-title{margin-top:14px;font-size:clamp(26px,3.6vw,38px);line-height:1.28;font-weight:700;letter-spacing:-.01em}
.gh-cat-lead{margin-top:14px;font-size:15px;color:var(--ink-2);line-height:1.9;max-width:720px}
.gh-cat-badges{display:grid;gap:10px}
.gh-stat-badge{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.92);padding:10px 14px;box-shadow:var(--shadow-1)}
.gh-stat-badge b{display:block;font-size:20px;line-height:1.25;color:var(--brand-1);font-variant-numeric:tabular-nums}
.gh-stat-badge span{display:block;font-size:12px;color:var(--ink-2);line-height:1.5;margin-top:2px}
/* pills */
.gh-pills{display:flex;flex-wrap:wrap;gap:10px}
.gh-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:13.5px;color:var(--ink-2);min-height:40px;transition:border-color .2s,color .2s,box-shadow .2s,transform .2s}
.gh-pill:hover{border-color:var(--brand-3);color:var(--brand-1);box-shadow:var(--shadow-1);transform:translateY(-1px)}
.gh-pill i{width:7px;height:7px;flex:0 0 auto;border-radius:50%;background:linear-gradient(135deg,var(--brand-2),var(--brand-3))}
/* dimension cards */
.gh-dim-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:26px}
.gh-dim-card{display:flex;flex-direction:column;min-width:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s,border-color .2s}
.gh-dim-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(127,200,169,.7)}
.gh-dim-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:rgba(47,122,99,.1);color:var(--brand-1);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums}
.gh-dim-title{margin-top:12px;font-size:17.5px;font-weight:600;line-height:1.5}
.gh-dim-text{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.85}
.gh-dim-foot{margin-top:auto;padding-top:14px;display:flex;flex-wrap:wrap;gap:6px}
.gh-tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;color:var(--brand-1);background:rgba(47,122,99,.1);border:1px solid rgba(47,122,99,.16);line-height:1.6}
.gh-tag--warn{color:#B23A24;background:rgba(228,87,61,.1);border-color:rgba(228,87,61,.2)}
.gh-tag--accent{color:#8A5A11;background:rgba(240,161,60,.16);border-color:rgba(240,161,60,.3)}
/* post list */
.gh-post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.gh-post-card{display:flex;min-width:0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-1);overflow:hidden;transition:transform .2s,box-shadow .2s,border-color .2s}
.gh-post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(127,200,169,.7)}
.gh-post-body{display:flex;flex-direction:column;gap:10px;padding:20px;min-width:0;width:100%}
.gh-post-title{font-size:17px;font-weight:600;line-height:1.55;overflow-wrap:break-word}
.gh-post-title a{transition:color .2s}
.gh-post-title a:hover{color:var(--brand-2)}
.gh-post-sum{font-size:14px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.gh-post-meta{margin-top:auto;padding-top:12px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--ink-2);font-variant-numeric:tabular-nums}
.gh-more-link{color:var(--brand-2);font-weight:600;white-space:nowrap}
.gh-more-link:hover{text-decoration:underline;text-underline-offset:4px}
.gh-empty{text-align:center;color:var(--ink-2);font-size:14.5px;padding:34px 16px;border:1px dashed var(--line);border-radius:var(--radius-md);background:#FBFAF7}
/* reading order */
.gh-order-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:26px}
.gh-order-step{position:relative;min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:22px 20px;box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s}
.gh-order-step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.gh-order-num{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--brand-1),var(--brand-2));color:#fff;font-size:16px;font-weight:700;font-variant-numeric:tabular-nums}
.gh-order-name{margin-top:14px;font-size:17px;font-weight:600}
.gh-order-desc{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.8}
/* compare */
.gh-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:26px}
.gh-compare-col{min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:22px;box-shadow:var(--shadow-1)}
.gh-compare-col--ok{border-color:rgba(47,122,99,.35);background:linear-gradient(180deg,#F3FAF6,#fff)}
.gh-compare-col--bad{border-color:rgba(228,87,61,.32);background:linear-gradient(180deg,#FDF4F2,#fff)}
.gh-compare-head{display:flex;align-items:center;gap:9px;font-size:16.5px;font-weight:600}
.gh-compare-head i{width:9px;height:9px;flex:0 0 auto;border-radius:50%}
.gh-compare-col--ok .gh-compare-head i{background:linear-gradient(135deg,var(--brand-2),var(--brand-3))}
.gh-compare-col--bad .gh-compare-head i{background:var(--warn)}
.gh-compare-list{margin-top:14px;display:flex;flex-direction:column;gap:11px}
.gh-compare-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.8;color:var(--ink-2);min-width:0}
.gh-mark{flex:0 0 auto;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;margin-top:3px;font-size:12px;font-weight:700;color:#fff}
.gh-compare-col--ok .gh-mark{background:var(--brand-2)}
.gh-compare-col--bad .gh-mark{background:var(--warn)}
/* risk list */
.gh-risk-card{margin-top:26px;border:1px solid rgba(228,87,61,.32);border-radius:var(--radius-lg);background:#fff;padding:24px;box-shadow:var(--shadow-1)}
.gh-risk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 24px;margin-top:16px}
.gh-risk-grid li{display:flex;gap:10px;font-size:14.5px;line-height:1.8;color:var(--ink-2);min-width:0}
.gh-risk-dot{flex:0 0 auto;width:18px;height:18px;margin-top:4px;border-radius:6px;border:1.5px solid rgba(228,87,61,.6);background:rgba(228,87,61,.1);display:grid;place-items:center}
.gh-risk-dot svg{width:11px;height:11px;stroke:var(--warn);stroke-width:2.4;fill:none}
/* faq cards */
.gh-faq-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:26px}
.gh-faq-card{min-width:0;background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:20px;box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s,border-color .2s}
.gh-faq-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(127,200,169,.7)}
.gh-faq-q{font-size:16px;font-weight:600;line-height:1.6}
.gh-faq-a{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.85}
/* extend */
.gh-extend{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:24px;align-items:center;background:linear-gradient(135deg,#F2F8F4,#fff);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-1)}
.gh-extend-title{font-size:20px;font-weight:700;line-height:1.5}
.gh-extend-text{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.8}
.gh-extend-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.gh-dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.gh-dl-btn{display:flex;flex-direction:column;gap:3px;min-width:0;padding:14px 16px;border-radius:16px;background:#fff;border:1.5px solid rgba(23,62,54,.18);box-shadow:var(--shadow-1);transition:transform .2s,box-shadow .2s,border-color .2s,background .2s}
.gh-dl-btn:hover{transform:translateY(-2px);border-color:var(--brand-2);background:#F6FBF8;box-shadow:var(--shadow-2)}
.gh-dl-btn strong{font-size:14.5px;font-weight:600;color:var(--brand-1)}
.gh-dl-btn span{font-size:12px;color:var(--ink-2);font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.gh-ask-card{margin-top:24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;border:1px solid var(--line);border-radius:var(--radius-md);background:#FBFAF7;padding:18px 22px}
.gh-ask-card p{font-size:14px;color:var(--ink-2);line-height:1.8;max-width:640px}
/* footer */
.gh-footer{background:var(--deep);color:#C9D8D2;padding:56px 0 24px}
.gh-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.gh-footer-brand{display:flex;align-items:center;gap:10px;color:#fff}
.gh-footer-brand strong{display:block;font-size:16px}
.gh-footer-brand em{display:block;font-style:normal;font-size:11.5px;letter-spacing:.1em;color:#9FB8AE}
.gh-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:12px}
.gh-footer p{color:#A9BDB5;font-size:13.5px;line-height:1.85;margin-top:14px;overflow-wrap:break-word}
.gh-footer-links{display:flex;flex-direction:column;gap:9px}
.gh-footer-links a{color:#C9D8D2;font-size:14px;transition:color .2s;overflow-wrap:break-word}
.gh-footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.gh-footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);font-size:12.5px;color:#8FA69D}
/* responsive */
@media(max-width:1023px){
  .gh-menu-btn{display:inline-flex}
  .gh-nav{display:none;width:100%;flex-direction:column;align-items:stretch;gap:4px;padding:8px 0 16px;border-top:1px solid var(--line);margin-top:6px}
  .gh-nav.is-open{display:flex}
  .gh-nav-link{min-height:48px;padding:0 14px;border-radius:12px;justify-content:flex-start}
  .gh-nav-cta{margin:8px 0 0;min-height:48px;width:100%}
  .gh-cat-head-inner{grid-template-columns:minmax(0,1fr);align-items:start}
  .gh-cat-badges{grid-template-columns:repeat(2,minmax(0,1fr));display:grid;max-width:460px}
  .gh-dim-grid,.gh-post-grid,.gh-faq-grid,.gh-order-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gh-extend{grid-template-columns:minmax(0,1fr)}
  .gh-footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .gh-section{padding:64px 0}
}
@media(max-width:639px){
  .gh-dim-grid,.gh-post-grid,.gh-faq-grid,.gh-order-grid,.gh-compare,.gh-risk-grid,.gh-dl-grid{grid-template-columns:minmax(0,1fr)}
  .gh-cat-badges{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gh-footer-grid{grid-template-columns:minmax(0,1fr)}
  .gh-section{padding:46px 0}
  .gh-risk-card,.gh-extend{padding:18px}
  .gh-btn{width:100%}
  .gh-extend-actions .gh-btn{width:100%}
  .gh-footer-bottom{flex-direction:column;align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}