:root{--brand:#5b5fc7;--brand-dark:#4448a8;--brand-soft:#ebebfa;--text:#212529;--muted:#5f6670;--line:#ebebeb;--bg:#f8f9fa;--radius:12px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,"Helvetica Neue",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.8;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-dark);text-decoration:none}
a:hover{text-decoration:underline}
.tm-wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.tm-skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:8px 16px;z-index:100}
.tm-skip:focus{left:0}
/* header */
.tm-site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:saturate(180%) blur(8px)}
.tm-header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.tm-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--text)}
.tm-logo:hover{text-decoration:none}
.tm-logo-mark{flex:none}
.tm-logo-text{display:flex;flex-direction:column;line-height:1.2}
.tm-logo-name{font-size:18px;font-weight:700}
.tm-logo-tag{font-size:12px;font-weight:400;color:var(--muted);letter-spacing:.5px;margin-top:2px}
.tm-site-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:4px}
.tm-site-nav a{display:block;padding:8px 12px;border-radius:8px;color:var(--text);font-size:15px}
.tm-site-nav a:hover{background:var(--brand-soft);color:var(--brand-dark);text-decoration:none}
.tm-site-nav a[aria-current=page]{color:var(--brand-dark);font-weight:600}
.tm-nav-toggle{position:absolute;opacity:0;pointer-events:none}
.tm-nav-btn{display:none;cursor:pointer;padding:10px}
.tm-nav-btn span{display:block;width:22px;height:2px;background:var(--text);margin:4px 0;border-radius:2px}
/* hero */
.tm-hero{background:linear-gradient(180deg,var(--brand-soft) 0%,#fff 100%);padding:28px 0 32px}
.tm-hero-home{padding:48px 0 40px}
.tm-hero h1{font-size:34px;line-height:1.35;margin:8px 0 8px;letter-spacing:.5px}
.tm-hero-home h1{font-size:40px}
.tm-lead{font-size:17px;color:#343a40;max-width:860px;margin:12px 0 0}
.tm-meta{color:var(--muted);font-size:14px;margin:0;display:flex;flex-wrap:wrap;gap:4px 16px}
.tm-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.tm-btn{display:inline-block;white-space:nowrap;cursor:pointer;background:var(--brand);color:#fff;padding:12px 26px;border-radius:999px;font-weight:600;font-size:16px;border:2px solid var(--brand);transition:background .2s}
.tm-btn:hover{background:var(--brand-dark);border-color:var(--brand-dark);text-decoration:none}
.tm-btn-ghost{background:#fff;color:var(--brand-dark)}
.tm-btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark)}
.tm-breadcrumb ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.tm-breadcrumb li+li::before{content:"/";margin:0 8px;color:#adb5bd}
.tm-breadcrumb a{color:var(--muted)}
/* banner (home) */
.tm-banner{position:relative;overflow:hidden;padding:56px 0 48px}
.tm-banner-inner{display:grid;gap:36px;align-items:center}
.tm-banner h1{font-size:46px;line-height:1.25;margin:0 0 12px;letter-spacing:.5px}
.tm-banner .tm-lead{font-size:18px}
.tm-banner-art img{width:100%;height:auto}
.tm-banner-chips{list-style:none;padding:0;margin:24px 0 0;display:flex;flex-wrap:wrap;gap:10px}
.tm-banner-chips a{display:inline-block;padding:7px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--text);font-size:14px}
.tm-banner-chips a:hover{border-color:var(--brand);color:var(--brand-dark);text-decoration:none}
.tm-side-toc .tm-toc{border:0;padding:0}
/* 结构选项用到的通用样式 */
.tm-strip{padding:22px 0;border-bottom:1px solid var(--line)}
.tm-strip .tm-cards{margin:0}
.tm-hero-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:36px;align-items:center}
.tm-hero-pic{margin:0}
.tm-hero-pic img{border-radius:var(--radius)}
.tm-layout-side{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:48px;max-width:1180px}
.tm-layout-side.tm-side-left{grid-template-columns:230px minmax(0,1fr)}
.tm-layout-side .tm-content{max-width:none}
.tm-side-toc{position:sticky;top:84px;align-self:start;margin-top:8px;font-size:14px;max-height:calc(100vh - 110px);overflow:auto}
.tm-side-toc .tm-toc ol{columns:1;list-style:none;padding:0;margin:0}
.tm-side-toc .tm-toc li{margin:0 0 8px}
/* content */
.tm-layout{padding:24px 20px 56px}
.tm-content{max-width:860px}
.tm-content h2{font-size:26px;line-height:1.4;margin:44px 0 14px;padding-left:12px;border-left:4px solid var(--brand)}
.tm-content h3{font-size:19px;margin:26px 0 8px}
.tm-content p{margin:0 0 14px}
.tm-content ul,.tm-content ol{padding-left:24px;margin:0 0 16px}
.tm-content li{margin:6px 0}
.tm-summary{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;margin:8px 0 24px}
.tm-summary-title,.tm-toc-title{font-weight:700;margin:0 0 6px}
.tm-summary ul{margin:0}
.tm-hero-figure{margin:0 0 24px}
.tm-hero-figure img{border-radius:var(--radius);border:1px solid var(--line)}
.tm-hero-figure figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px}
.tm-toc{border:1px solid var(--line);border-radius:var(--radius);padding:16px 22px;margin:0 0 8px}
.tm-toc ol{margin:0;columns:2;column-gap:32px}
.tm-toc li{break-inside:avoid;font-size:15px}
.tm-steps{counter-reset:s;list-style:none;padding-left:0}
.tm-steps>li{counter-increment:s;position:relative;padding-left:42px;margin:12px 0}
.tm-steps>li::before{content:counter(s);position:absolute;left:0;top:2px;width:28px;height:28px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center}
.tm-table-wrap{overflow-x:auto;margin:0 0 16px;border:1px solid var(--line);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:15px;min-width:560px}
caption{text-align:left;font-weight:600;padding:12px 16px;color:var(--muted);font-size:14px}
th,td{padding:12px 16px;border-top:1px solid var(--line);text-align:left;vertical-align:top}
thead th{background:var(--bg);font-weight:600}
.tm-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:0 0 16px}
.tm-card{display:block;border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;color:var(--text);transition:border-color .2s,box-shadow .2s}
.tm-card:hover{border-color:var(--brand);box-shadow:0 4px 14px rgba(255,105,51,.12);text-decoration:none}
.tm-card strong{display:block;font-size:17px;color:var(--brand-dark)}
.tm-card span{font-size:14px;color:var(--muted)}
.tm-note{font-size:14px;color:var(--muted)}
pre{background:#1f2328;color:#f0f3f6;padding:14px 16px;border-radius:10px;overflow-x:auto;font-size:14px;line-height:1.6;margin:8px 0 14px}
code{font-family:Consolas,"SFMono-Regular",Menlo,monospace}
.tm-faq-item{border-bottom:1px solid var(--line);padding:6px 0 4px}
.tm-faq-item h3{margin:14px 0 6px;font-size:18px}
.tm-related{margin-top:48px;background:var(--bg);border-radius:var(--radius);padding:20px 24px}
.tm-related h2{border:0;padding:0;margin:0 0 8px;font-size:20px}
.tm-related ul{margin:0}
/* footer */
.tm-site-footer{background:#1f2328;color:#c9d1d9;padding:40px 0 24px;font-size:14px}
.tm-site-footer a{color:#c9d1d9}
.tm-site-footer a:hover{color:#fff}
.tm-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}
.tm-footer-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:#fff;margin:0 0 8px}
.tm-footer-title{color:#fff;font-weight:600;margin:0 0 8px}
.tm-site-footer ul{list-style:none;margin:0;padding:0}
.tm-site-footer li{margin:4px 0}
.tm-footer-note{border-top:1px solid #30363d;margin-top:28px;padding-top:16px;color:#8b949e;font-size:13px}
.tm-footer-note p{margin:0 0 6px}
/* responsive */
@media (max-width:960px){
.tm-hero-grid{grid-template-columns:1fr}
.tm-layout-side,.tm-layout-side.tm-side-left{grid-template-columns:minmax(0,1fr);gap:0}
.tm-side-toc{display:none}
.tm-nav-btn{display:block}
.tm-site-nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 8px 16px rgba(0,0,0,.06)}
.tm-site-nav ul{flex-direction:column;padding:8px 12px}
.tm-nav-toggle:checked~.tm-site-nav{display:block}
}
@media (max-width:640px){
.tm-banner h1{font-size:30px}
.tm-banner .tm-lead{font-size:16px}
.tm-banner{padding:36px 0 28px}
.tm-hero h1,.tm-hero-home h1{font-size:26px}
.tm-lead{font-size:16px}
.tm-content h2{font-size:22px}
.tm-toc ol{columns:1}
.tm-cards{grid-template-columns:1fr 1fr}
.tm-footer-grid{grid-template-columns:1fr 1fr}
.tm-footer-about{grid-column:1/-1}
}

/* 骨架 lattice：浅紫灰底色、顶部细色条页头、柔和渐变左文右图横幅（点阵纹理）、
   正文为压在横幅上的白色圆角“纸面”、点阵小标 H2、斑马纹表格、卡片式 FAQ、白色多栏页脚 */
body{background:#f5f5fa;color:#242424}
a{color:var(--brand-dark)}
/* header：顶部 3px 色条，导航为圆角浅紫块 */
.tm-site-header{background:#fff;border-top:3px solid var(--brand);border-bottom:1px solid #e6e6f0;backdrop-filter:none}
.tm-header-inner{height:60px}
.tm-logo-mark rect:first-child{rx:10}
.tm-logo-name{font-size:17px;letter-spacing:.3px}
.tm-logo-tag{color:#6b6b80}
.tm-site-nav ul{gap:2px}
.tm-site-nav a{font-size:14.5px;padding:6px 12px;border-radius:6px;color:#424242}
.tm-site-nav a:hover{background:#f0f0fa;color:var(--brand-dark)}
.tm-site-nav a[aria-current=page]{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
/* 横幅：柔和紫色渐变 + 右上点阵纹理，左文右图 */
.tm-banner{background:radial-gradient(120% 90% at 100% 0%,#dcdaf8 0%,rgba(220,218,248,0) 55%),linear-gradient(160deg,#f7f6ff 0%,#efeefd 45%,#f6f1fb 100%);padding:64px 0 96px}
.tm-banner::before{content:"";position:absolute;right:0;top:0;width:46%;height:70%;background-image:radial-gradient(rgba(91,95,199,.18) 1.4px,transparent 1.6px);background-size:18px 18px;-webkit-mask-image:linear-gradient(225deg,#000 10%,transparent 70%);mask-image:linear-gradient(225deg,#000 10%,transparent 70%);pointer-events:none}
.tm-banner-inner{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;position:relative}
.tm-banner h1{font-size:50px;font-weight:700;line-height:1.22;color:#1b1a33;letter-spacing:0}
.tm-banner .tm-meta{color:#616175}
.tm-banner .tm-lead{color:#3d3d52;font-size:17.5px;line-height:1.85}
.tm-banner-art{filter:drop-shadow(0 18px 30px rgba(70,72,160,.16))}
/* 按钮：微软式小圆角 */
.tm-btn{border-radius:4px;padding:11px 24px;font-size:15.5px;border-width:1px;box-shadow:0 2px 6px rgba(91,95,199,.28)}
.tm-btn:hover{box-shadow:0 4px 12px rgba(91,95,199,.32)}
.tm-btn-ghost{background:#fff;color:#242424;border-color:#c8c8d8;box-shadow:none}
.tm-btn-ghost:hover{background:#f5f5fb;color:var(--brand-dark);border-color:var(--brand);box-shadow:none}
/* 子页首屏：浅渐变，配图白框 */
.tm-hero{background:linear-gradient(180deg,#f1f0fc 0%,#f5f5fa 100%);padding:34px 0 72px;border-bottom:0}
.tm-hero h1{font-size:34px;color:#1b1a33;font-weight:700}
.tm-hero-pic img{border-radius:12px;border:6px solid #fff;box-shadow:0 10px 28px rgba(60,60,120,.14)}
.tm-breadcrumb{margin-bottom:6px}
.tm-breadcrumb ol{font-size:13px}
/* 正文：压在首屏上的白色纸面 */
.tm-layout{position:relative;max-width:1040px;background:#fff;border:1px solid #e4e4ef;border-radius:16px;box-shadow:0 6px 24px rgba(40,40,90,.06);padding:40px 56px 56px;margin:-48px auto 56px}
.tm-content{max-width:none}
.tm-content p{line-height:1.9}
.tm-content h2{display:flex;align-items:center;gap:12px;border:0;padding:0;font-size:24px;font-weight:700;color:#1b1a33;margin:52px 0 16px}
.tm-content h2::before{content:"";flex:none;width:16px;height:16px;background-image:radial-gradient(var(--brand) 2.2px,transparent 2.6px);background-size:8px 8px;background-position:0 0}
.tm-content h3{font-size:18px;color:#33335a}
#platforms h2{margin-top:0}
/* 平台卡片：细边 + 微阴影 + 右侧箭头 */
.tm-cards{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:14px;margin:0 0 28px}
.tm-card{position:relative;background:#fff;border:1px solid #e1e1ee;border-radius:10px;padding:18px 40px 16px 18px;box-shadow:0 1px 3px rgba(40,40,90,.06)}
.tm-card::after{content:"→";position:absolute;right:16px;top:17px;color:var(--brand);font-weight:700}
.tm-card:hover{border-color:var(--brand);box-shadow:0 6px 18px rgba(91,95,199,.16)}
.tm-card strong{font-size:16.5px;color:#1b1a33}
.tm-card span{display:block;margin-top:4px;font-size:13.5px;line-height:1.6}
/* 要点速览 */
.tm-summary{background:linear-gradient(135deg,#f6f5ff,#fbf9ff);border:1px solid #e3e1f7;border-radius:12px;padding:18px 24px}
.tm-summary-title{color:var(--brand-dark);font-size:15px}
.tm-summary li::marker{color:var(--brand)}
/* 编号步骤：圆角方块编号 */
.tm-steps>li{padding-left:46px}
.tm-steps>li::before{border-radius:7px;background:var(--brand-soft);color:var(--brand-dark);border:1px solid #d9d8f5;width:30px;height:30px;top:1px}
/* 表格：紫色表头 + 斑马纹 */
.tm-table-wrap{border:1px solid #e1e1ee;border-radius:10px;box-shadow:0 1px 3px rgba(40,40,90,.05)}
caption{color:#4a4a68;background:#fafaff;border-bottom:1px solid #ececf6}
thead th{background:var(--brand-soft);color:var(--brand-dark);border-top:0}
th,td{border-top:0}
tbody tr:nth-child(even){background:#f8f8fc}
tbody td{border-top:1px solid #f0f0f6}
/* FAQ：卡片 */
.tm-faq{display:grid;gap:12px}
.tm-faq-item{border:1px solid #e6e6f1;border-radius:10px;padding:4px 20px 6px;background:#fff}
.tm-faq-item h3{font-size:16.5px;margin:14px 0 4px;color:#1b1a33}
.tm-faq-item p{color:#4a4a5e}
/* 延伸阅读：胶囊链接 */
.tm-related{background:#f7f7fc;border:1px solid #ececf6;border-radius:12px}
.tm-related h2{font-size:17px}
.tm-related ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.tm-related li{margin:0}
.tm-related a{display:inline-block;background:#fff;border:1px solid #dedcf3;border-radius:999px;padding:4px 14px;font-size:14px}
/* 页脚：白色多栏 */
.tm-site-footer{background:#fff;color:#5c5c70;border-top:1px solid #e4e4ef;padding:48px 0 0}
.tm-site-footer a{color:#424242}
.tm-site-footer a:hover{color:var(--brand-dark)}
.tm-footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.tm-footer-about{background:#f5f5fc;border-radius:12px;padding:18px 20px}
.tm-footer-logo{color:#1b1a33}
.tm-footer-title{color:#8a8aa0;font-size:12.5px;letter-spacing:1.5px;font-weight:600}
.tm-site-footer li{margin:7px 0}
.tm-footer-note{border-top:1px solid #ececf4;color:#7a7a8e;padding:18px 0 22px;margin-top:36px}
@media (max-width:960px){
.tm-banner-inner{grid-template-columns:minmax(0,1fr)}
.tm-banner::before{width:80%}
.tm-layout{margin:-40px 14px 40px;padding:32px 28px 44px}
.tm-site-nav{top:63px}
.tm-site-nav a{padding:10px 12px}
}
@media (max-width:640px){
.tm-banner{padding:36px 0 72px}
.tm-banner h1{font-size:31px}
.tm-hero h1{font-size:26px}
.tm-layout{margin:-40px 8px 32px;padding:24px 16px 36px;border-radius:12px}
.tm-content h2{font-size:21px}
.tm-cards{grid-template-columns:1fr 1fr}
.tm-card{padding:14px 30px 12px 14px}
.tm-card::after{right:10px;top:13px}
.tm-faq-item{padding:2px 14px 4px}
}