:root{
  --bg:#0a0e1a; --bg2:#0f1626; --card:#141d31; --line:#1f2b44;
  --txt:#eaf0fb; --sub:#9fb0cc; --mut:#6b7c9c;
  --brand:#ff6a3d; --brand2:#ff8a4c; --accent:#3d7bff;
  --ok:#23c483;
  --radius:16px; --maxw:1080px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.brand-grad{background:linear-gradient(90deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
section{padding:64px 0}
h2.sec-title{font-size:28px;font-weight:800;text-align:center;margin-bottom:10px;letter-spacing:-.5px}
.sec-sub{text-align:center;color:var(--sub);margin-bottom:40px;font-size:15px}
.page-hero{padding:60px 0 30px;text-align:center;background:radial-gradient(1000px 460px at 50% -10%,rgba(61,123,255,.16),transparent),radial-gradient(700px 380px at 80% 10%,rgba(255,106,61,.12),transparent)}
.page-hero h1{font-size:38px;font-weight:900;letter-spacing:-1px;margin-bottom:14px}
.page-hero p{color:var(--sub);font-size:17px;max-width:680px;margin:0 auto}
.page-hero .badge{margin-bottom:18px}

/* ===== 顶栏 ===== */
header{position:sticky;top:0;z-index:50;background:rgba(10,14,26,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.logo{font-weight:900;font-size:20px;letter-spacing:-.5px;flex-shrink:0}
.logo span{font-size:22px}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:auto}
.nav-links a{font-size:15px;color:var(--sub);font-weight:600;transition:color .2s;white-space:nowrap}
.nav-links a:hover,.nav-links a.active{color:var(--txt)}
.nav-cta{background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff !important;padding:9px 18px;border-radius:999px;font-size:14px;font-weight:700;box-shadow:0 4px 14px rgba(255,106,61,.35);cursor:pointer}
.nav-toggle{display:none;background:none;border:none;color:var(--txt);font-size:26px;cursor:pointer;margin-left:auto}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:800;border-radius:12px;cursor:pointer;border:none;transition:transform .15s,box-shadow .15s;font-size:16px}
.btn-primary{background:linear-gradient(90deg,var(--brand),var(--brand2));color:#fff;padding:15px 26px;box-shadow:0 8px 24px rgba(255,106,61,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,106,61,.5)}
.btn-ghost{background:var(--card);color:var(--txt);padding:15px 22px;border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand)}

/* ===== Hero（首页） ===== */
.hero{position:relative;padding:54px 0 60px;overflow:hidden;background:radial-gradient(1200px 600px at 70% -10%,rgba(61,123,255,.18),transparent),radial-gradient(900px 500px at 10% 10%,rgba(255,106,61,.14),transparent)}
.hero-bg{position:absolute;inset:0;z-index:0;background-image:url('/assets/gen/hero-bg.webp');background-size:cover;background-position:center right;opacity:.5}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg) 8%,rgba(10,14,26,.72) 45%,rgba(10,14,26,.35) 100%)}
.hero .wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:6px;background:rgba(61,123,255,.12);border:1px solid rgba(61,123,255,.3);color:#9cc0ff;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;margin-bottom:20px}
.hero h1{font-size:44px;line-height:1.18;font-weight:900;letter-spacing:-1px;margin-bottom:18px}
.hero h1 .hl{color:var(--brand)}
.hero .lead{font-size:17px;color:var(--sub);margin-bottom:14px}
.hl{color:var(--brand)}
.trust-row{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 28px}
.trust-row .tag{background:var(--card);border:1px solid var(--line);padding:7px 13px;border-radius:10px;font-size:13px;color:var(--sub);font-weight:600}
.trust-row .tag b{color:var(--txt)}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-portrait{position:relative}
.hero-portrait .photo{width:100%;max-width:360px;border-radius:20px;display:block;margin:0 auto;border:1px solid var(--line);box-shadow:0 20px 60px rgba(0,0,0,.5)}
.hero-portrait .float{position:absolute;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:13px;font-weight:700;box-shadow:0 10px 30px rgba(0,0,0,.4)}
.float.f1{top:14px;left:-6px;color:#9cc0ff}
.float.f2{bottom:18px;right:-6px;color:var(--brand2)}

/* ===== logo 墙 ===== */
.logos{padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg2)}
.logos .wrap{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}
.logos .lbl{color:var(--mut);font-size:13px;font-weight:600;width:100%;text-align:center;margin-bottom:6px}
.logos .co{font-size:19px;font-weight:800;color:var(--sub);opacity:.9;padding:6px 16px;border:1px solid var(--line);border-radius:10px;background:var(--card)}

/* ===== 痛点 ===== */
.pains{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.pain{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;gap:14px;align-items:flex-start}
.pain .ic{font-size:24px;flex-shrink:0}
.pain p{font-size:15px;color:var(--sub)}
.pain b{color:var(--txt)}

/* ===== 步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:8px}
.step{background:linear-gradient(180deg,var(--card),var(--bg2));border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;position:relative}
.step .num{font-size:42px;font-weight:900;color:rgba(255,106,61,.25);line-height:1}
.step .step-img{width:100%;aspect-ratio:1/1;max-width:150px;display:block;margin:4px auto 14px;border-radius:14px;border:1px solid var(--line);background:var(--bg)}
.step h3{font-size:18px;margin:6px 0 8px;font-weight:800}
.step p{font-size:14px;color:var(--sub)}
.path-note{text-align:center;margin-top:28px;font-size:18px;color:var(--txt);font-weight:700}
.path-note .hl{color:var(--brand)}

/* ===== 讲师/故事 ===== */
.teacher{background:var(--bg2)}
.teacher.has-bg{position:relative;overflow:hidden;background:var(--bg2)}
.teacher.has-bg::before{content:"";position:absolute;inset:0;z-index:0;background-image:url('/assets/gen/influence-bg.webp');background-size:cover;background-position:center;opacity:.28}
.teacher.has-bg::after{content:"";position:absolute;inset:0;z-index:0;background:linear-gradient(180deg,var(--bg2) 0%,rgba(15,22,38,.55) 50%,var(--bg2) 100%)}
.teacher.has-bg .wrap{position:relative;z-index:1}
.teacher-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:36px;align-items:center}
.teacher-photo{width:100%;max-width:320px;border-radius:18px;border:1px solid var(--line);margin:0 auto;display:block}
.teacher h2{font-size:26px;font-weight:900;margin-bottom:6px;text-align:left}
.teacher .role{color:var(--brand2);font-weight:700;margin-bottom:18px}
.creds{display:flex;flex-direction:column;gap:12px}
.cred{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--sub)}
.cred .ck{color:var(--ok);font-weight:900;flex-shrink:0}
.cred b{color:var(--txt)}
.teacher-quote{margin-top:22px;padding:18px 20px;border-left:3px solid var(--brand);background:var(--card);border-radius:8px;font-size:15px;color:var(--txt);font-style:italic}

/* ===== 卡片网格（课程/案例/干货通用） ===== */
.courses{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.course{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:border-color .2s,transform .2s}
.course:hover{border-color:var(--brand);transform:translateY(-4px)}
.topic-card{display:block;height:100%}
.course .ic{font-size:30px;margin-bottom:12px}
.course .course-img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;margin:-26px -26px 18px;width:calc(100% + 52px);border-bottom:1px solid var(--line);border-radius:var(--radius) var(--radius) 0 0}
.course h3{font-size:19px;font-weight:800;margin-bottom:6px}
.course .who{font-size:13px;color:var(--brand2);font-weight:700;margin-bottom:12px}
.course ul{list-style:none;display:flex;flex-direction:column;gap:8px}
.course li{font-size:14px;color:var(--sub);padding-left:20px;position:relative}
.course li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:900}

/* ===== 数据条 ===== */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;text-align:center}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px 14px}
.stat .n{font-size:32px;font-weight:900;color:var(--brand)}
.stat .l{font-size:13px;color:var(--sub);margin-top:4px}

/* ===== 证言 ===== */
.voices{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.voice{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.voice .stars{color:#ffc24b;margin-bottom:10px;font-size:14px}
.voice p{font-size:14px;color:var(--sub);margin-bottom:14px}
.voice .who{display:flex;align-items:center;gap:10px}
.voice .av{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--accent));display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;color:#fff}
.voice .who .nm{font-size:13px;font-weight:700}
.voice .who .ds{font-size:12px;color:var(--mut)}

/* ===== 留资区 ===== */
.capture{background:linear-gradient(135deg,#13203a,#1a1330);border:1px solid var(--line);border-radius:24px;padding:44px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.capture-left h2{font-size:30px;font-weight:900;line-height:1.25;margin-bottom:14px}
.capture-left h2 .hl{color:var(--brand)}
.gift-list{display:flex;flex-direction:column;gap:10px;margin:18px 0}
.gift{display:flex;gap:10px;align-items:center;font-size:15px;color:var(--sub)}
.gift .g{color:var(--brand2);font-size:18px}
.risk{font-size:13px;color:var(--mut);margin-top:8px}
form .field{margin-bottom:14px}
form label{display:block;font-size:13px;color:var(--sub);margin-bottom:6px;font-weight:600}
form input,form select{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:14px;color:var(--txt);font-size:15px;outline:none;transition:border-color .2s}
form input:focus,form select:focus{border-color:var(--brand)}
form .btn-primary{width:100%;margin-top:6px}
.form-note{font-size:13px;color:var(--mut);text-align:center;margin-top:12px;display:flex;align-items:center;justify-content:center;gap:6px}
.form-ok{display:none;text-align:center;padding:30px 10px}
.form-ok .big{font-size:46px}
.form-ok h3{font-size:22px;margin:10px 0 6px;font-weight:800}
.form-ok p{color:var(--sub);font-size:14px}

/* ===== FAQ ===== */
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.faq summary{padding:18px 22px;font-weight:700;font-size:16px;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--brand);font-weight:400}
.faq[open] summary::after{content:"−"}
.faq .ans{padding:0 22px 18px;color:var(--sub);font-size:14px}

/* ===== 收尾 CTA ===== */
.final{text-align:center;background:radial-gradient(800px 400px at 50% 0%,rgba(255,106,61,.16),transparent)}
.final h2{font-size:32px;font-weight:900;margin-bottom:14px}
.final p{color:var(--sub);margin-bottom:26px;font-size:16px}

/* ===== Footer ===== */
footer{border-top:1px solid var(--line);background:var(--bg2);padding:36px 0;font-size:13px;color:var(--mut)}
.foot-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px}
footer a:hover{color:var(--sub)}

/* ===== 富文本 / SEO 文章页 ===== */
.prose{max-width:760px;margin:0 auto}
.prose p{color:var(--sub);font-size:16px;margin-bottom:18px}
.prose h2{font-size:26px;font-weight:900;margin:34px 0 14px;line-height:1.25}
.prose h3{font-size:22px;font-weight:800;margin:30px 0 12px}
.prose ul,.prose ol{margin:0 0 18px 20px;color:var(--sub)}
.prose li{margin:8px 0}
.placeholder-note{background:rgba(255,106,61,.08);border:1px dashed rgba(255,106,61,.4);border-radius:12px;padding:16px 20px;color:var(--brand2);font-size:14px;text-align:center;margin:20px auto;max-width:760px}
.article-hero{padding:64px 0 42px;background:radial-gradient(900px 420px at 50% -15%,rgba(255,106,61,.18),transparent),radial-gradient(780px 420px at 15% 10%,rgba(61,123,255,.14),transparent);border-bottom:1px solid var(--line)}
.article-hero h1{max-width:880px;font-size:40px;line-height:1.18;font-weight:900;letter-spacing:-1px;margin-bottom:16px}
.article-hero p{max-width:760px;color:var(--sub);font-size:18px}
.article-kicker{display:inline-flex;margin-bottom:16px;color:#9cc0ff;background:rgba(61,123,255,.12);border:1px solid rgba(61,123,255,.28);border-radius:999px;padding:6px 14px;font-size:13px;font-weight:800}
.article-meta{color:var(--mut);font-size:13px;margin-top:18px}
.article-wrap{display:block}
.article-prose strong{color:var(--txt)}
.seo-table{width:100%;border-collapse:collapse;margin:16px 0 24px;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:table}
.seo-table th,.seo-table td{border-bottom:1px solid var(--line);padding:12px 14px;text-align:left;font-size:14px;vertical-align:top}
.seo-table th{color:var(--txt);background:rgba(255,106,61,.08);font-weight:800}
.seo-table td{color:var(--sub)}
.seo-table tr:last-child td{border-bottom:none}
.prompt-box{background:#0d1424;border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:12px;color:var(--txt);font-size:14px;line-height:1.8;padding:16px 18px;margin:14px 0 22px}
.inline-cta{background:linear-gradient(135deg,#182642,#251934);border:1px solid var(--line);border-radius:18px;padding:24px;margin:32px 0}
.inline-cta h3{margin-top:0}
.inline-cta p{margin-bottom:18px}
.related-links{display:flex;flex-wrap:wrap;gap:10px;margin:12px 0 20px}
.related-links a{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:9px 14px;color:var(--sub);font-size:14px;font-weight:700}
.related-links a:hover{border-color:var(--brand);color:var(--txt)}

/* ===== 移动端吸底 CTA ===== */
.sticky-cta{position:fixed;bottom:0;left:0;right:0;z-index:60;background:rgba(10,14,26,.95);backdrop-filter:blur(10px);border-top:1px solid var(--line);padding:12px 16px;display:none}
.sticky-cta .btn-primary{width:100%;padding:14px}

/* ===== 弹窗 ===== */
.modal{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.7);display:none;align-items:center;justify-content:center;padding:20px}
.modal.show{display:flex}
.modal-box{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:32px;max-width:420px;width:100%;position:relative}
.modal-box .x{position:absolute;top:14px;right:18px;font-size:24px;color:var(--mut);cursor:pointer}
.modal-box h3{font-size:22px;font-weight:900;margin-bottom:8px}
.modal-box .msub{color:var(--sub);font-size:14px;margin-bottom:20px}

@media(max-width:860px){
  section{padding:48px 0}
  .nav-links{position:fixed;top:60px;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;gap:0;padding:8px 0;display:none}
  .nav-links.open{display:flex}
  .nav-links a{width:100%;padding:13px 22px}
  .nav-links .nav-cta{margin:8px 22px;display:inline-block}
  .nav-toggle{display:block}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-portrait{order:-1}
  .hero-portrait .photo{max-width:260px}
  .hero h1{font-size:32px}
  .page-hero h1{font-size:28px}
  .teacher-grid{grid-template-columns:1fr;gap:24px}
  .teacher h2{text-align:center}
  .teacher .role{text-align:center}
  .steps,.courses,.voices{grid-template-columns:1fr}
  .article-hero h1{font-size:30px}
  .article-hero p{font-size:16px}
  .seo-table{display:block;overflow-x:auto}
  .pains{grid-template-columns:1fr}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .capture{grid-template-columns:1fr;padding:28px 22px;gap:26px}
  .sticky-cta{display:block}
  body{padding-bottom:70px}
  h2.sec-title{font-size:24px}
  .final h2{font-size:26px}
}