/* ============================================================
   CopiloTrade 首页样式 v3 — 2026-09-20 专业化改版
   参考 SaaS 官网范式 (结构清晰 / 留白充足 / 字体统一 / 无表情符号):
     深色导航 + 深色首屏 (承载金黑 logo) → 浅色内容区 → 深色 CTA 与页脚
   中文 index.html 为源, /en/ 与 /ms/ 由 tools/gen_static_i18n.js 按字典生成, 三语共用本文件
   ============================================================ */
:root{
  --navy:#0B1220; --navy-2:#121B30; --navy-3:#1A2540;
  --ink:#141B27; --ink-2:#2A3342; --muted:#5B6472; --muted-2:#8A93A3;
  --line:#E6EAF0; --line-dark:rgba(255,255,255,.10);
  --bg:#FFFFFF; --bg-soft:#F6F8FB; --bg-tint:#F2F6FD;
  --gold:#B8860B; --gold-2:#D9A400; --gold-bright:#F5B301; --gold-soft:rgba(245,179,1,.12);
  --green:#16A34A; --red:#DC2626; --blue:#2563EB;
  --radius:14px; --radius-lg:20px;
  --shadow:0 10px 30px rgba(20,27,39,.08); --shadow-lg:0 30px 80px rgba(20,27,39,.16);
  --container:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',-apple-system,'Segoe UI','PingFang SC','Microsoft YaHei UI','Noto Sans SC','Helvetica Neue',Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.7;font-size:16px;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:var(--gold);text-decoration:none}
a:hover{color:var(--gold-2)}
img{max-width:100%;display:block}
.wrap{max-width:var(--container);margin:0 auto;padding:0 28px}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin-bottom:12px}
.dark .eyebrow{color:var(--gold-bright)}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.2}
h2{font-size:34px;margin-bottom:12px}
h3{font-size:19px}
.sub{color:var(--muted);font-size:17px;max-width:720px}
.center{text-align:center}
.center .sub{margin:0 auto}
section{position:relative;padding:88px 0}
.soft{background:var(--bg-soft)}
.tint{background:var(--bg-tint)}
.dark{background:var(--navy);color:#E6EAF3}
.dark h1,.dark h2,.dark h3{color:#FFF}
.dark .sub{color:#AEB7C7}

/* ---- 按钮 ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease,border-color .15s ease;text-decoration:none;white-space:nowrap;
}
.btn-gold{background:var(--gold-bright);color:#1A1200 !important;box-shadow:0 8px 20px rgba(245,179,1,.28)}
.btn-gold:hover{transform:translateY(-1px);background:#FFC21A;box-shadow:0 12px 28px rgba(245,179,1,.36)}
.btn-ghost{background:transparent;color:#FFF !important;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{border-color:#FFF;background:rgba(255,255,255,.06)}
.btn-outline{background:#FFF;color:var(--ink) !important;border-color:var(--line)}
.btn-outline:hover{border-color:var(--ink-2);box-shadow:var(--shadow)}
.btn-dark{background:var(--ink);color:#FFF !important}
.btn-dark:hover{background:#000}
.btn-xl{padding:16px 32px;font-size:17px}

/* ---- 顶部公告条 ---- */
.topbar{background:var(--navy-2);color:#C9D2E3;font-size:13px;text-align:center;padding:8px 16px;border-bottom:1px solid var(--line-dark)}
.topbar a{color:var(--gold-bright);font-weight:600;margin-left:6px}

/* ---- 导航 ---- */
.nav{position:sticky;top:0;z-index:100;background:rgba(11,18,32,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line-dark)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:100px;gap:24px}
.logo{display:flex;align-items:center;flex:0 0 auto}
/* logo 使用透明底版本 (logo-aicopilotrade-t.png), 直接放在深色导航上 */
.logo img{height:92px;width:auto;margin-left:-12px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{color:#D6DDEA;font-size:15px;font-weight:500}
.nav-links a:hover{color:#FFF}
.nav-links .btn{padding:10px 20px;font-size:14px}
/* 语言切换 (放在导航内, 取代 i18n.js 的右上角浮层) */
.lang{display:inline-flex;border:1px solid rgba(255,255,255,.18);border-radius:999px;overflow:hidden;font-size:12px;font-weight:700;margin-left:4px}
.lang a{padding:6px 11px;color:#AEB7C7;font-size:12px;line-height:1;font-weight:700}
.lang a:hover{color:#FFF}
.lang a.on{background:var(--gold-bright);color:#1A1200}

/* ---- 首屏 ---- */
.hero{
  position:relative;padding:84px 0 92px;overflow:hidden;
  background:
    radial-gradient(900px 480px at 78% 30%,rgba(245,179,1,.14),transparent 62%),
    radial-gradient(700px 400px at 12% 90%,rgba(37,99,235,.14),transparent 60%),
    var(--navy);
}
.hero::before{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at 50% 40%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at 50% 40%,#000 30%,transparent 75%);
}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative}
.hero h1{font-size:44px;line-height:1.18;color:#FFF;margin:14px 0 20px;letter-spacing:-.02em;text-wrap:balance}
.hero h1 .hl{color:var(--gold-bright)}
/* 英文 / 马来文标题更长, 字号略降 (i18n.js 运行时翻译也会改 <html lang>) */
html:not([lang^="zh"]) .hero h1{font-size:38px;line-height:1.2}
.hero .lead{font-size:18px;color:#B6BFD0;max-width:560px;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.hero .meta{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px;color:#93A0B8;font-size:14px}
.hero .meta span{display:inline-flex;align-items:center;gap:8px}
.hero .meta span::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--gold-bright)}

/* 产品预览 (纯 CSS 拼的控制台示意, 不依赖截图) */
.mock{
  position:relative;border-radius:16px;background:#0F172A;border:1px solid rgba(255,255,255,.12);
  box-shadow:0 40px 100px rgba(0,0,0,.55),0 0 0 1px rgba(255,255,255,.04) inset;overflow:hidden;
  font-size:12px;color:#C7D0E0;
}
.mock .bar{display:flex;align-items:center;gap:8px;padding:10px 14px;background:#0B1220;border-bottom:1px solid rgba(255,255,255,.08)}
.mock .bar i{width:10px;height:10px;border-radius:50%;background:#2A3550;display:inline-block}
.mock .bar i:nth-child(1){background:#FF5F57}.mock .bar i:nth-child(2){background:#FEBC2E}.mock .bar i:nth-child(3){background:#28C840}
.mock .bar .url{margin-left:10px;flex:1;background:#121B30;border-radius:6px;padding:4px 10px;color:#7C8AA5;font-size:11px}
.mock .body{display:grid;grid-template-columns:1.25fr 1fr;gap:10px;padding:12px}
.mock .chart{border-radius:10px;background:#0B1220;border:1px solid rgba(255,255,255,.07);padding:10px;display:flex;flex-direction:column;gap:8px;min-height:250px}
.mock .chart .hd{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:2px 10px;color:#9AA7BF}
.mock .chart .hd b{color:#FFF;font-weight:600;white-space:nowrap}
.mock .chart svg{width:100%;height:190px;flex:1}
.mock .cards{display:flex;flex-direction:column;gap:10px}
.mock .aicard{border-radius:10px;background:#111A2E;border:1px solid rgba(255,255,255,.08);padding:10px 12px}
.mock .aicard .t{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;color:#9AA7BF;font-size:11px;letter-spacing:.04em}
.mock .pill{display:inline-block;padding:2px 8px;border-radius:999px;font-weight:700;font-size:11px}
.mock .pill.sell{background:rgba(220,38,38,.18);color:#FCA5A5}
.mock .pill.ok{background:rgba(22,163,74,.18);color:#86EFAC}
.mock .pill.hold{background:rgba(245,179,1,.16);color:#FCD34D}
.mock .aicard .r{color:#C7D0E0;line-height:1.5}
.mock .aicard .m{margin-top:6px;height:4px;border-radius:2px;background:#1E2A44;overflow:hidden}
.mock .aicard .m i{display:block;height:100%;background:linear-gradient(90deg,#F5B301,#FFD666);width:78%}
.mock .status{display:flex;flex-wrap:wrap;gap:4px 14px;padding:8px 14px 12px;color:#7C8AA5;font-size:11px;border-top:1px solid rgba(255,255,255,.06)}
.mock .status span{white-space:nowrap}
.mock .status b{color:#86EFAC;font-weight:600}
.mock-glow{position:absolute;inset:-40px -20px auto;height:60%;background:radial-gradient(closest-side,rgba(245,179,1,.18),transparent);z-index:-1;pointer-events:none}

/* ---- 信任条 ---- */
.trust{padding:22px 0;background:#FFF;border-bottom:1px solid var(--line)}
.trust .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px 14px}
.trust .lbl{color:var(--muted-2);font-size:13px;margin-right:6px;letter-spacing:.04em;text-transform:uppercase;font-weight:600}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:#FFF;color:var(--ink-2);font-size:14px;font-weight:500}
.chip::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--gold-bright)}

/* ---- 数字 ---- */
.stats{padding:64px 0}
.stats .grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:#FFF;box-shadow:var(--shadow)}
.stat{padding:30px 28px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat .n{font-size:40px;font-weight:800;color:var(--ink);letter-spacing:-.03em;line-height:1}
.stat .n small{font-size:20px;font-weight:700;color:var(--gold);margin-left:2px}
.stat .l{margin-top:10px;font-weight:600;color:var(--ink-2);font-size:15px}
.stat .d{color:var(--muted);font-size:13.5px;margin-top:4px;line-height:1.6}

/* ---- 三个 AI 角色 ---- */
.agents .head{text-align:center;margin-bottom:56px}
.agent{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:36px 0}
.agent + .agent{border-top:1px solid var(--line)}
.agent.reverse .visual{order:-1}
.agent h2{font-size:28px}
.agent p{color:var(--muted);margin:10px 0 18px}
.agent ul{list-style:none;display:grid;gap:10px}
.agent li{position:relative;padding-left:30px;color:var(--ink-2)}
.agent li::before{
  content:'';position:absolute;left:0;top:4px;width:18px;height:18px;border-radius:50%;background:var(--gold-soft);
  border:1px solid rgba(184,134,11,.35);
}
.agent li::after{content:'';position:absolute;left:6px;top:8px;width:5px;height:9px;border:solid var(--gold);border-width:0 2px 2px 0;transform:rotate(45deg)}
.agent .actions{display:flex;gap:12px;margin-top:22px;align-items:center}
.agent .actions .more{color:var(--gold);font-weight:600;font-size:14px}
.visual{
  border-radius:var(--radius-lg);background:linear-gradient(180deg,#FFFFFF,#F6F8FB);border:1px solid var(--line);
  box-shadow:var(--shadow);padding:28px;display:flex;flex-direction:column;gap:14px;min-height:300px;justify-content:center;
}
.visual .row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 14px;border-radius:12px;background:#FFF;border:1px solid var(--line);font-size:14px;color:var(--ink-2)}
.visual .row b{color:var(--ink);font-weight:600}
.visual .row.hi{border-color:rgba(184,134,11,.45);box-shadow:0 8px 24px rgba(184,134,11,.12)}
.tag{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700}
.tag.buy{background:rgba(22,163,74,.12);color:var(--green)}
.tag.sell{background:rgba(220,38,38,.10);color:var(--red)}
.tag.gold{background:var(--gold-soft);color:var(--gold)}
.tag.gray{background:#EEF1F6;color:var(--muted)}
.tag.blue{background:rgba(37,99,235,.10);color:var(--blue)}
.visual .note{font-size:13px;color:var(--muted);text-align:center}

/* ---- 五步流程 ---- */
.steps5{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:48px}
.step5{position:relative;background:#FFF;border:1px solid var(--line);border-radius:var(--radius);padding:22px 18px 20px;box-shadow:var(--shadow)}
.step5 .k{width:34px;height:34px;border-radius:10px;background:var(--navy);color:var(--gold-bright);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px;margin-bottom:14px}
.step5 h3{font-size:16px;margin-bottom:6px}
.step5 p{color:var(--muted);font-size:14px;line-height:1.6}
.step5::after{content:'';position:absolute;right:-9px;top:50%;width:14px;height:14px;transform:translateY(-50%) rotate(45deg);border-top:1px solid var(--line);border-right:1px solid var(--line);background:#FFF}
.step5:last-child::after{display:none}
.flow-note{margin:28px auto 0;text-align:center;color:var(--muted);font-size:15px;max-width:720px}

/* ---- 两种版本 ---- */
.editions{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:44px}
.edition{background:#FFF;border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.edition.featured{border-color:rgba(184,134,11,.45);box-shadow:0 20px 50px rgba(184,134,11,.14)}
.edition .kicker{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.edition h3{font-size:22px}
.edition .desc{color:var(--muted);margin-bottom:18px}
.edition ul{list-style:none;display:grid;gap:9px;margin-bottom:26px;flex:1}
.edition li{position:relative;padding-left:26px;color:var(--ink-2);font-size:15px}
.edition li::before{content:'';position:absolute;left:0;top:9px;width:14px;height:14px;border-radius:50%;background:var(--gold-soft)}
.edition li::after{content:'';position:absolute;left:5px;top:11px;width:4px;height:7px;border:solid var(--gold);border-width:0 2px 2px 0;transform:rotate(45deg)}
.edition .actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---- 购买前须知 ---- */
.notice{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px}
.notice .box{background:#FFF;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 28px}
.notice .box.ok{border-top:3px solid var(--green)}
.notice .box.no{border-top:3px solid var(--red)}
.notice h3{font-size:17px;margin-bottom:12px}
.notice ul{list-style:none;display:grid;gap:8px}
.notice li{color:var(--ink-2);font-size:15px;padding-left:18px;position:relative}
.notice li::before{content:'';position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--muted-2)}
.notice .box.ok li::before{background:var(--green)}
.notice .box.no li::before{background:var(--red)}
.notice-foot{margin-top:22px;color:var(--muted);font-size:14.5px;text-align:center}

/* ---- FAQ ---- */
.faq{max-width:860px;margin:40px auto 0}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 0;font-weight:600;font-size:17px;color:var(--ink)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';flex:0 0 auto;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted);font-weight:400;transition:transform .2s ease}
.faq details[open] summary::after{content:'−';transform:none}
.faq .a{color:var(--muted);padding:0 0 18px;font-size:15.5px;line-height:1.8}

/* ---- CTA 深色带 ---- */
.cta{padding:84px 0;text-align:center;background:radial-gradient(800px 400px at 50% 0%,rgba(245,179,1,.16),transparent 65%),var(--navy)}
.cta h2{font-size:34px;color:#FFF}
.cta .sub{color:#AEB7C7;margin:12px auto 30px}
.cta .btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.cta .fine{margin-top:22px;color:#7C8AA5;font-size:13.5px}

/* ---- 联系 ---- */
.contacts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:900px;margin:40px auto 0}
.contact{display:block;text-align:center;padding:26px 20px;border-radius:var(--radius);background:#FFF;border:1px solid var(--line);color:inherit;box-shadow:var(--shadow);transition:transform .15s ease,border-color .15s ease}
.contact:hover{transform:translateY(-2px);border-color:rgba(184,134,11,.5);color:inherit}
.contact h3{font-size:14px;color:var(--muted);font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px}
.contact .val{font-size:22px;font-weight:800;color:var(--ink);word-break:break-all}
.contact .hint{margin-top:8px;font-size:13px;color:var(--muted-2)}
.contact-more{margin-top:20px;text-align:center;color:var(--muted-2);font-size:14px}
.contact-more a{color:var(--ink-2)}
.affil{max-width:900px;margin:26px auto 0;padding:14px 18px;border-radius:12px;background:var(--bg-tint);border:1px solid #DCE6F5;color:var(--ink-2);font-size:14px;text-align:center}
.affil strong{color:var(--ink)}
.affil a{text-decoration:underline;text-underline-offset:3px}

/* ---- 页脚 ---- */
footer{background:var(--navy);color:#9AA7BF;font-size:14px;padding:64px 0 36px;border-top:1px solid var(--line-dark)}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
footer .brand img{height:124px;width:auto;margin:-14px 0 8px -16px}
footer .brand p{color:#7C8AA5;line-height:1.7;font-size:13.5px;max-width:340px}
footer h4{color:#FFF;font-size:14px;margin-bottom:14px;letter-spacing:.02em}
footer ul{list-style:none;display:grid;gap:9px}
footer ul a{color:#AEB7C7}
footer ul a:hover{color:#FFF}
footer .langs{display:flex;gap:14px;flex-wrap:wrap;margin-top:8px}
footer .bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--line-dark);display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#6E7A92;font-size:13px}
footer .bottom a{color:#9AA7BF}
footer .risk{margin-top:18px;color:#6E7A92;font-size:12.5px;line-height:1.8;max-width:980px}
footer .risk a{color:#AEB7C7}

/* ---- 手机 / 平板 ---- */
@media(max-width:1024px){
  .hero .wrap{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:40px}
  .stats .grid{grid-template-columns:1fr 1fr}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .steps5{grid-template-columns:repeat(2,1fr)}
  .step5::after{display:none}
  footer .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  section{padding:60px 0}
  h2{font-size:28px}
  .nav .wrap{height:72px;gap:10px;padding-left:12px;padding-right:16px}
  .logo img{height:56px;margin-left:-6px}
  .nav-links{gap:12px}
  .nav-links .guide,.nav-links .login,.nav-links a[href="#agents"],.nav-links a[href="#how"],.nav-links a[href="#editions"],.nav-links a[href="/download.html"]{display:none}
  .lang a{padding:6px 9px}
  .hero{padding:56px 0 64px}
  .hero h1{font-size:32px}
  .hero .lead{font-size:16px}
  .mock .body{grid-template-columns:1fr}
  .mock .chart{min-height:180px}
  .agent,.agent.reverse{grid-template-columns:1fr;gap:24px}
  .agent.reverse .visual{order:0}
  .agent h2{font-size:24px}
  .editions,.notice{grid-template-columns:1fr}
  .steps5{grid-template-columns:1fr}
  .contacts{grid-template-columns:1fr}
  .stats .grid{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  footer .cols{grid-template-columns:1fr}
  .btn-xl{width:100%}
}