*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at top left,#fff4ef 0%,#fffaf8 38%,#fff7f2 100%);color:#251915;line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
svg{display:block}
button,input,textarea,select{font:inherit}
button{border:0;background:none;padding:0}
:root{
  --bg:#fffaf8;
  --panel:#ffffff;
  --panel-soft:#fff5f0;
  --panel-deep:#fff0e9;
  --line:#f1d9d0;
  --line-strong:#e8b7a8;
  --text:#251915;
  --muted:#6e5750;
  --accent:#e94f37;
  --accent-strong:#d63a21;
  --accent-soft:rgba(233,79,55,.12);
  --accent-2:#ff8a3d;
  --accent-3:#ffb268;
  --success:#15803d;
  --success-soft:rgba(21,128,61,.12);
  --shadow:0 22px 55px rgba(170,94,63,.14);
  --shadow-sm:0 10px 30px rgba(170,94,63,.09);
  --radius-xs:12px;
  --radius-sm:18px;
  --radius:24px;
  --radius-lg:32px;
  --transition:.22s ease;
}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.section{padding:84px 0}
.section-tight{padding:56px 0}
.section-head{max-width:720px;margin-bottom:32px}
.section-kicker{display:inline-flex;align-items:center;gap:10px;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.8);border:1px solid var(--line);color:var(--accent-strong);font-size:.9rem;font-weight:700;letter-spacing:.02em}
.section-head h2{margin:16px 0 12px;font-size:clamp(1.9rem,3vw,3rem);line-height:1.12;letter-spacing:-.03em}
.section-head p{margin:0;color:var(--muted);font-size:1.04rem}
.topbar{position:sticky;top:0;z-index:100;background:rgba(255,250,248,.86);backdrop-filter:blur(18px);border-bottom:1px solid rgba(232,183,168,.5)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:78px}
.brand{display:inline-flex;align-items:center;gap:14px;flex-shrink:0}
.brand-mark{display:flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 14px 28px rgba(233,79,55,.28)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:1.02rem;letter-spacing:-.02em}
.brand-text span{margin-top:4px;color:var(--muted);font-size:.82rem}
.nav-links{display:flex;align-items:center;gap:10px;list-style:none;margin:0 auto 0 0;padding:0}
.nav-links a{display:inline-flex;align-items:center;justify-content:center;padding:11px 16px;border-radius:999px;border:1px solid transparent;color:var(--muted);font-weight:700;font-size:.95rem;transition:background var(--transition),border-color var(--transition),color var(--transition),transform var(--transition)}
.nav-links a:hover{background:rgba(255,255,255,.82);border-color:var(--line);color:var(--text);transform:translateY(-1px)}
.nav-links a.active{background:var(--accent-soft);border-color:rgba(233,79,55,.25);color:var(--accent-strong)}
.nav-cta{display:inline-flex;align-items:center;gap:10px;padding:12px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);font-weight:700;transition:transform var(--transition),border-color var(--transition),box-shadow var(--transition)}
.nav-cta:hover{transform:translateY(-1px);border-color:var(--line-strong);box-shadow:0 12px 28px rgba(170,94,63,.12)}
.btn-primary,.btn-secondary,.btn-link{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 22px;border-radius:999px;font-weight:800;font-size:1rem;cursor:pointer;transition:transform var(--transition),box-shadow var(--transition),background var(--transition),border-color var(--transition),color var(--transition)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 18px 36px rgba(233,79,55,.26)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 40px rgba(233,79,55,.3)}
.btn-secondary{background:#fff;border:1px solid var(--line);color:var(--text);box-shadow:var(--shadow-sm)}
.btn-secondary:hover{transform:translateY(-2px);border-color:var(--line-strong)}
.btn-link{background:rgba(255,255,255,.72);border:1px solid var(--line);color:var(--text)}
.btn-link:hover{transform:translateY(-2px);background:#fff}
button:disabled{cursor:wait;opacity:.92}
.hero{padding:44px 0 28px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;padding:9px 16px;border-radius:999px;background:rgba(255,255,255,.86);border:1px solid var(--line);color:var(--accent-strong);font-weight:800;font-size:.92rem}
.hero-copy h1{margin:16px 0 18px;font-size:clamp(2.4rem,4.2vw,4.6rem);line-height:1.03;letter-spacing:-.05em;max-width:760px}
.hero-copy p{margin:0;color:var(--muted);font-size:1.1rem;max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 18px}
.hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:0;padding:0;list-style:none}
.hero-points li,.mini-note,.signal-item,.support-item,.aside-point,.quick-fact{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border-radius:20px;background:rgba(255,255,255,.88);border:1px solid var(--line)}
.hero-points strong,.quick-fact strong{display:block;font-size:.96rem}
.hero-points span,.quick-fact span,.mini-note span{display:block;color:var(--muted);font-size:.92rem;line-height:1.55}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:20px}
.metric-card{padding:16px 18px;border-radius:22px;background:rgba(255,255,255,.9);border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.metric-card strong{display:block;font-size:1.45rem;line-height:1.1}
.metric-card span{display:block;margin-top:6px;color:var(--muted);font-size:.92rem}
.workspace-card{padding:18px;border-radius:34px;background:linear-gradient(180deg,#ffe8df 0%,#fff8f4 60%,#ffffff 100%);border:1px solid rgba(232,183,168,.55);box-shadow:var(--shadow)}
.workspace-top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 2px 14px}
.window-dots{display:flex;gap:8px}
.window-dots span{width:11px;height:11px;border-radius:50%;background:#efb9ab}
.window-dots span:nth-child(2){background:#ffcf85}
.window-dots span:nth-child(3){background:#9fd7ad}
.workspace-top strong{font-size:.92rem}
.workspace-top span{color:var(--muted);font-size:.86rem}
.workspace-screen{overflow:hidden;border-radius:26px;background:var(--panel);border:1px solid rgba(232,183,168,.55)}
.workspace-tabs{display:flex;flex-wrap:wrap;gap:10px;padding:16px;border-bottom:1px solid var(--line);background:var(--panel-soft)}
.workspace-tab{display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:.9rem;font-weight:700;color:#4f3a34}
.workspace-body{display:grid;grid-template-columns:1.18fr .82fr;gap:16px;padding:18px}
.doc-sheet{padding:18px;border-radius:22px;background:linear-gradient(180deg,#ffffff 0%,#fff8f5 100%);border:1px solid var(--line)}
.doc-sheet h3{margin:0 0 14px;font-size:1.08rem}
.doc-line{height:12px;border-radius:999px;background:linear-gradient(90deg,rgba(233,79,55,.18),rgba(255,255,255,.9));margin-bottom:12px}
.doc-line.short{width:58%}
.doc-line.mid{width:76%}
.doc-line.long{width:92%}
.doc-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}
.doc-grid div{padding:14px;border-radius:18px;background:#fff;border:1px solid var(--line)}
.doc-grid strong{display:block;font-size:.95rem}
.doc-grid span{display:block;margin-top:6px;color:var(--muted);font-size:.85rem}
.side-stack{display:grid;gap:12px}
.side-card{padding:16px;border-radius:20px;background:var(--panel-soft);border:1px solid var(--line)}
.side-card strong{display:block;font-size:1rem}
.side-card p{margin:8px 0 0;color:var(--muted);font-size:.9rem}
.side-card ul{margin:10px 0 0;padding-left:18px;color:var(--muted);font-size:.9rem}
.insight-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.insight-card,.story-card,.platform-card,.quote-card,.focus-card,.facts-card,.channel-card,.step-card,.module-card,.article-block,.toc-card,.compare-card,.cta-banner,.footer-card{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.insight-card{padding:24px}
.insight-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}
.insight-card h3,.story-card h3,.platform-card h3,.quote-card h3,.focus-card h3,.facts-card h3,.channel-card h3,.module-card h3,.article-block h2,.toc-card h3{margin:0;font-size:1.25rem;line-height:1.2}
.insight-card p,.story-card p,.platform-card p,.quote-card p,.focus-card p,.facts-card p,.channel-card p,.module-card p,.article-block p,.cta-banner p{margin:10px 0 0;color:var(--muted)}
.icon-wrap{display:inline-flex;align-items:center;justify-content:center;width:50px;height:50px;border-radius:18px;background:var(--accent-soft);color:var(--accent-strong);flex-shrink:0}
.soft-list{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:12px}
.soft-list li{display:flex;gap:12px;padding:12px 14px;border-radius:18px;background:var(--panel-soft);border:1px solid var(--line)}
.soft-list strong{display:block;font-size:.95rem}
.soft-list span{display:block;color:var(--muted);font-size:.9rem}
.platform-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.platform-card{padding:24px}
.platform-card.featured{grid-column:span 2;background:linear-gradient(135deg,#fff4ef 0%,#ffffff 54%,#fff7f1 100%)}
.platform-meta,.badge-row,.channel-meta{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 18px}
.meta-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:var(--panel-soft);border:1px solid var(--line);font-weight:700;font-size:.88rem;color:#5a443e}
.platform-actions,.channel-actions,.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}
.story-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.story-card{padding:24px}
.story-number{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;background:var(--accent-soft);color:var(--accent-strong);font-weight:800;margin-bottom:16px}
.quote-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.quote-card{padding:22px}
.quote-card blockquote{margin:0;font-size:1rem;line-height:1.7;color:#3a2823}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.avatar-badge{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;flex-shrink:0}
.quote-person strong{display:block;font-size:.95rem}
.quote-person span{display:block;color:var(--muted);font-size:.86rem}
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.faq-item{background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow-sm);overflow:hidden}
.faq-item summary{list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 20px;cursor:pointer;font-weight:800;color:var(--text)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item p{margin:0;padding:0 20px 20px;color:var(--muted)}
.faq-item[open]{border-color:var(--line-strong)}
.faq-icon{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:var(--panel-soft);border:1px solid var(--line);color:var(--accent-strong);flex-shrink:0}
.page-hero{padding:40px 0 18px}
.page-hero-card{display:grid;grid-template-columns:1.08fr .92fr;gap:20px;padding:28px;background:linear-gradient(135deg,#fff5f0 0%,#ffffff 55%,#fff7f2 100%);border:1px solid var(--line);border-radius:32px;box-shadow:var(--shadow)}
.page-hero-card h1{margin:12px 0 18px;font-size:clamp(2.15rem,3.7vw,3.8rem);line-height:1.05;letter-spacing:-.04em}
.page-hero-card p{margin:0;color:var(--muted);font-size:1.06rem}
.page-hero-aside{display:grid;gap:12px}
.page-hero-aside .mini-note{background:rgba(255,255,255,.95)}
.download-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:18px}
.focus-card,.facts-card{padding:26px}
.focus-card .download-primary{margin-top:22px}
.spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:20px}
.spec-item{padding:14px 16px;border-radius:18px;background:var(--panel-soft);border:1px solid var(--line)}
.spec-item strong{display:block;font-size:.92rem}
.spec-item span{display:block;margin-top:6px;color:var(--muted);font-size:.88rem}
.facts-list{display:grid;gap:12px;margin-top:18px}
.channel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.channel-card{padding:22px;display:flex;flex-direction:column}
.channel-card.featured{background:linear-gradient(180deg,#fff2ec 0%,#ffffff 100%);border-color:rgba(233,79,55,.22)}
.channel-card .channel-actions{margin-top:auto;padding-top:18px}
.step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.step-card{position:relative;padding:24px;padding-top:58px}
.step-badge{position:absolute;top:18px;left:24px;display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:12px;background:var(--accent-soft);color:var(--accent-strong);font-weight:900}
.module-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.module-card{padding:22px}
.module-card p{font-size:.94rem}
.article-hero{padding:40px 0 18px}
.article-hero-card{padding:30px;background:linear-gradient(135deg,#fff4ee 0%,#ffffff 52%,#fff8f4 100%);border:1px solid var(--line);border-radius:32px;box-shadow:var(--shadow)}
.article-hero-card h1{margin:12px 0 16px;font-size:clamp(2.1rem,3.6vw,3.7rem);line-height:1.06;letter-spacing:-.04em;max-width:880px}
.article-hero-card p{margin:0;max-width:820px;color:var(--muted);font-size:1.05rem}
.intent-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.intent-tag{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:999px;background:rgba(255,255,255,.9);border:1px solid var(--line);font-weight:700;font-size:.9rem;color:#5b453e}
.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:22px;align-items:start}
.article-main{display:grid;gap:18px}
.article-block{padding:26px}
.article-block h2{margin-bottom:14px;font-size:1.55rem}
.article-block h3{margin:20px 0 10px;font-size:1.15rem}
.article-block p+ p{margin-top:12px}
.article-block ul{margin:16px 0 0;padding-left:20px;color:var(--muted)}
.article-block li+li{margin-top:10px}
.highlight-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}
.highlight-card{padding:18px;border-radius:20px;background:var(--panel-soft);border:1px solid var(--line)}
.highlight-card strong{display:block;font-size:.98rem}
.highlight-card span{display:block;margin-top:6px;color:var(--muted);font-size:.9rem}
.toc-card{padding:24px;position:sticky;top:96px}
.toc-card ul{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}
.toc-card a{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:16px;background:var(--panel-soft);border:1px solid transparent;color:#4a3630;font-weight:700;transition:transform var(--transition),border-color var(--transition),background var(--transition)}
.toc-card a:hover{transform:translateY(-1px);border-color:var(--line);background:#fff}
.quick-facts{display:grid;gap:12px;margin-top:20px}
.update-list{display:grid;gap:12px;margin-top:18px}
.update-item{display:grid;grid-template-columns:112px 1fr;gap:16px;align-items:start;padding:16px 18px;border-radius:20px;background:var(--panel-soft);border:1px solid var(--line)}
.update-date{display:inline-flex;align-items:center;justify-content:center;padding:10px 12px;border-radius:14px;background:#fff;border:1px solid var(--line);font-weight:800;color:var(--accent-strong)}
.compare-card{padding:24px}
.compare-grid{display:grid;gap:12px;margin-top:16px}
.compare-row{display:grid;grid-template-columns:1.1fr 1fr 1fr;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.compare-row strong,.compare-row span{padding:14px 16px}
.compare-row strong{background:var(--panel-soft)}
.compare-row span{background:#fff;color:var(--muted);border-left:1px solid var(--line)}
.tip-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:18px}
.tip-card{padding:20px;border-radius:20px;background:var(--panel-soft);border:1px solid var(--line)}
.tip-card strong{display:block;font-size:1rem}
.tip-card p{margin:8px 0 0;color:var(--muted);font-size:.92rem}
.cta-banner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:28px;background:linear-gradient(135deg,#fff1ea 0%,#ffffff 50%,#fff7f1 100%)}
.cta-banner h2{margin:0;font-size:1.8rem;line-height:1.15}
.site-footer{padding:34px 0 54px}
.footer-card{padding:26px 28px;text-align:center}
.footer-card p{margin:0;color:var(--muted)}
.footer-card p+ p{margin-top:8px}
.tablet-hide{display:block}
.center{display:flex;justify-content:center}
@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.floating{animation:floatY 4s ease-in-out infinite}
@media (max-width:1100px){
  .hero-grid,.page-hero-card,.download-layout,.article-shell{grid-template-columns:1fr}
  .metric-grid,.quote-grid,.channel-grid,.module-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .platform-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .platform-card.featured{grid-column:span 2}
  .story-grid,.tip-grid,.step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .toc-card{position:static}
}
@media (max-width:820px){
  .container{width:min(100%,calc(100% - 28px))}
  .topbar-inner{flex-wrap:wrap;padding:14px 0 16px}
  .nav-links{order:3;width:100%;justify-content:space-between;gap:8px}
  .nav-links li{flex:1}
  .nav-links a{width:100%;padding:10px 0}
  .nav-cta{margin-left:auto}
  .hero-points,.insight-grid,.story-grid,.quote-grid,.faq-grid,.channel-grid,.module-grid,.platform-grid,.highlight-grid,.tip-grid,.step-grid,.metric-grid,.workspace-body,.doc-grid,.spec-grid{grid-template-columns:1fr}
  .platform-card.featured{grid-column:auto}
  .update-item,.compare-row{grid-template-columns:1fr}
  .compare-row span{border-left:0;border-top:1px solid var(--line)}
  .hero,.section{padding:64px 0}
  .section-tight,.site-footer{padding:28px 0 44px}
  .article-hero,.page-hero{padding-top:28px}
}
@media (max-width:560px){
  .brand-text span,.tablet-hide{display:none}
  .btn-primary,.btn-secondary,.btn-link,.nav-cta{width:100%}
  .hero-actions,.platform-actions,.channel-actions,.cta-row{flex-direction:column}
  .cta-banner{padding:24px;align-items:flex-start}
  .hero-copy h1,.page-hero-card h1,.article-hero-card h1{font-size:2rem}
  .section-head h2,.cta-banner h2{font-size:1.7rem}
  .workspace-card{padding:14px;border-radius:28px}
  .workspace-tabs{padding:12px}
  .workspace-tab{width:100%;justify-content:center}
}