:root{
--primary:#0f1b2d;--accent:#00a884;--radius:12px;
--ink:#111111;--muted:#737373;--line:#111111;--bg:#ffffff;--soft:#fafafa;--card:#ffffff;--hero-bg:none;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:var(--bg);line-height:1.68;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:var(--bg);padding:8px;border:1px solid var(--line);z-index:99}
h1{font-size:clamp(30px,4.2vw,50px);line-height:1.14;margin:0 0 18px;letter-spacing:-.025em;font-weight:800}
h2{font-size:clamp(23px,3vw,34px);line-height:1.22;margin:0 0 14px;letter-spacing:-.015em;font-weight:750}
h3{font-size:18px;margin:0 0 9px;font-weight:700}
.lead{font-size:18px;color:var(--muted);margin:0 0 26px;max-width:68ch}
.rt{margin:0 0 20px;max-width:72ch}
.rt p{margin:0 0 15px}
.rt ul,.rt ol{padding-left:22px;margin:0 0 15px}
.rt li{margin:0 0 7px}
.rt blockquote{margin:0 0 16px;padding:14px 18px;border-left:3px solid var(--primary);background:var(--soft);color:var(--muted)}
.rt code{background:var(--soft);padding:2px 6px;border-radius:4px;font-size:.92em}
.grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));list-style:none;padding:0;margin:30px 0 0}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-block;padding:12px 24px;background:var(--primary);color:#fff;border-radius:var(--radius);font-weight:650;border:0;transition:filter .15s,transform .15s}
.btn:hover{filter:brightness(1.08);text-decoration:none;transform:translateY(-1px)}
.faq details{border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;margin:0 0 12px;background:var(--card)}
.faq summary{cursor:pointer;font-weight:650;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+ ";color:var(--primary);font-weight:800}
.faq details[open] summary::before{content:"− "}
.faq details p{margin:12px 0 0;color:var(--muted)}
.kv{list-style:none;padding:0;margin:22px 0 0}
.kv li{padding:12px 0;border-bottom:1px solid var(--line);color:var(--muted)}
.ftr{padding:36px 0;color:var(--muted);font-size:14px;border-top:1px solid var(--line);background:var(--soft)}
.ftr p{margin:5px 0}
/* 页脚相关推荐链接区 */
.ftr-rel{margin:0 0 22px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.ftr-h{margin:0 0 11px;font-size:11.5px;font-weight:700;letter-spacing:.9px;text-transform:uppercase;color:var(--ink);opacity:.72}
.ftr-links{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 10px}
.ftr-links li{margin:0}
.ftr-links a{display:inline-block;padding:5px 11px;border:1px solid var(--line);border-radius:var(--r-sm,6px);font-size:13px;color:inherit;text-decoration:none;transition:border-color .15s,color .15s,background .15s}
.ftr-links a:hover{color:var(--ink);border-color:currentColor}
.ftr-note{margin:13px 0 0;font-size:12px;opacity:.65;line-height:1.6}
nav a.on{font-weight:700;color:var(--primary)}
/* ---------- 站点骨架：logo 标记 / 面包屑 ---------- */
.logo-mk{display:inline-block;width:9px;height:9px;margin-right:8px;border-radius:2px;background:linear-gradient(135deg,var(--primary),var(--accent));vertical-align:middle;transform:translateY(-1px)}
.crumbs{border-bottom:1px solid var(--line);background:var(--soft);font-size:13px}
.crumb-in{display:flex;flex-wrap:wrap;align-items:center;gap:7px;padding-top:11px;padding-bottom:11px;color:var(--muted)}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--primary);text-decoration:underline}
.crumbs [aria-current]{color:var(--ink);font-weight:600}
.crumb-sep{opacity:.4}
/* ---------- 图片 ---------- */
.hero-split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;max-width:1180px}
.hero-art img{width:100%;height:auto;border-radius:var(--radius);box-shadow:0 24px 60px -30px rgba(15,23,42,.45)}
.hero-txt{min-width:0}
.fig{margin:30px 0 0}
.fig img{width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line)}
.art-fig{margin:0 0 30px}
.art .fig img{box-shadow:0 16px 40px -28px rgba(15,23,42,.5)}
/* feature 卡片图标 */
.ic{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;margin-bottom:13px;border-radius:calc(var(--radius) * .7);background:var(--soft);border:1px solid var(--line);color:var(--primary)}
.ic svg{width:19px;height:19px}
.more{display:inline-block;margin-top:11px;font-size:14px;font-weight:600}
/* ---------- 新增区块：stats / steps / gallery / timeline / logos / quote ---------- */
.stats .stat-grid{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:24px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.stats .stat-grid li{padding:26px 22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--card);text-align:center}
.stat-num{margin:0 0 6px;font-size:clamp(28px,3.4vw,40px);font-weight:800;letter-spacing:-.03em;color:var(--primary);line-height:1.1}
.stat-lbl{margin:0;font-weight:650}
.stat-txt{margin:8px 0 0;font-size:14px;color:var(--muted)}
.step-list{list-style:none;counter-reset:s;padding:0;margin:30px 0 0;display:grid;gap:0}
.step-list li{position:relative;padding:0 0 26px 54px;border-left:2px solid var(--line);margin-left:15px}
.step-list li:last-child{border-left-color:transparent;padding-bottom:0}
.step-n{position:absolute;left:-16px;top:-2px;display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;font-size:14px;font-weight:700}
.step-list h3{margin:0 0 6px;font-size:17px}
.step-list p{margin:0;color:var(--muted);font-size:15px;max-width:66ch}
.gal-grid{list-style:none;padding:0;margin:30px 0 0;display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.gal-item{margin:0}
.gal-item img{width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line);display:block}
.gal-item p{margin:9px 0 0;font-size:14px;color:var(--muted);font-weight:600}
.tl-list{list-style:none;padding:0;margin:30px 0 0}
.tl-list li{display:grid;grid-template-columns:110px 1fr;gap:22px;padding:0 0 24px}
.tl-when{font-weight:700;color:var(--primary);font-size:15px;font-variant-numeric:tabular-nums}
.tl-body{border-left:2px solid var(--line);padding-left:22px;margin-left:-12px}
.tl-body h3{margin:0 0 6px;font-size:17px}
.tl-body p{margin:0;color:var(--muted);font-size:15px}
.logos{padding:34px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--soft)}
.logos-h{margin:0 0 16px;text-align:center;font-size:12.5px;letter-spacing:.9px;text-transform:uppercase;color:var(--muted);font-weight:700}
.logos-row{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;justify-content:center;gap:16px 38px}
.logos-row li{font-weight:700;font-size:15px;color:var(--muted);opacity:.8;letter-spacing:.02em}
.logos-note{margin:16px 0 0;text-align:center;font-size:12.5px;color:var(--muted);opacity:.8}
.quote{padding:60px 0;background:var(--soft)}
.quote .wrap{max-width:820px}
.quote blockquote{margin:0;padding:0;border:0;background:none;font-size:clamp(19px,2.3vw,25px);line-height:1.6;font-weight:500;color:var(--ink)}
.quote blockquote p{margin:0 0 12px}
.quote-by{margin:18px 0 0;color:var(--muted);font-size:14.5px}
/* 价格卡片徽标 / 价格单位 */
.price .card{position:relative}
.price .badge{position:absolute;top:-11px;right:16px;background:var(--accent);color:#fff;font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:99px;letter-spacing:.02em}
.price .amt small{font-size:14px;font-weight:600;opacity:.7;margin-left:3px}
@media(max-width:860px){.hero-split{grid-template-columns:1fr;gap:34px}.hero-art{order:-1}}
/* 相关阅读列表 */
.rel{background:var(--soft)}
.tbl-scroll{overflow-x:auto}
.rt table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px;min-width:520px}
.rt th,.rt td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.rt th{background:var(--soft);font-weight:700;white-space:nowrap}
.rt tbody tr:hover{background:var(--soft)}
.rel-list{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.rel-list li{margin:0;padding:14px 18px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;gap:4px;transition:border-color .15s,transform .15s}
.rel-list li:hover{border-color:var(--primary);transform:translateY(-2px)}
.rel-list a{font-weight:650;font-size:15px;line-height:1.45}
.rel-list span{font-size:13px;color:var(--muted)}
@media(max-width:560px){.tl-list li{grid-template-columns:1fr;gap:6px}.tl-body{margin-left:0}.step-list li{padding-left:46px}}
@media(max-width:640px){.wrap{padding:0 18px}.cta-row{flex-direction:column}.btn{text-align:center}.ftr-links a{padding:4px 9px;font-size:12.5px}}

body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}
.hero{text-align:left}.hero .wrap{max-width:900px}
section{padding:76px 0;border-bottom:1px solid var(--line)}
section:last-of-type{border-bottom:0}
.hero{padding:96px 0 76px;background:var(--hero-bg)}
.hero .cta-row{justify-content:flex-start}
.hdr{border-bottom:2px solid var(--ink);position:sticky;top:0;background:var(--bg);z-index:20}
.hdr-in{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;flex-wrap:wrap}
.logo{font-weight:800;font-size:17px;color:var(--ink);letter-spacing:.08em;text-transform:uppercase}
.hdr nav{display:flex;gap:26px;flex-wrap:wrap}
.hdr nav a{color:var(--ink);font-size:13px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;border-bottom:2px solid transparent;padding-bottom:2px}
.hdr nav a:hover{border-bottom-color:var(--accent);text-decoration:none}
h1{font-weight:800;letter-spacing:-.035em;font-size:clamp(34px,5vw,60px);max-width:16ch}
h2{font-weight:800;letter-spacing:-.03em}
.lead{font-size:19px;color:var(--ink)}
.btn{background:var(--ink);border-radius:0;padding:14px 28px;font-size:14px;letter-spacing:.05em;text-transform:uppercase;font-weight:700}
.btn:hover{background:var(--accent);transform:none;filter:none}
.feat .grid{gap:0;border-top:1px solid var(--ink);margin-top:36px}
.feat .grid li{border-bottom:1px solid var(--ink);border-right:1px solid var(--ink);padding:26px 22px;background:none;border-radius:0}
.feat .grid li:nth-child(3n){border-right:0}
.feat .grid li h3{font-size:15px;letter-spacing:.04em;text-transform:uppercase;margin-bottom:12px}
.feat .grid li p{color:var(--muted);font-size:15px;margin:0}
.price .card{border:1px solid var(--ink);border-radius:0;box-shadow:none;padding:28px 22px}
.price .amt{font-size:34px;font-weight:800;color:var(--ink)}
.faq details{border:0;border-bottom:1px solid var(--ink);border-radius:0;padding:18px 0;background:none}
.faq details[open]{background:none}
.faq summary{font-weight:700;font-size:17px}
.art{max-width:760px;padding:80px 22px}
.art h1{max-width:none}
.ftr{border-top:2px solid var(--ink);background:none;padding:44px 0;color:var(--ink)}