/* ===== CIWM Prototype · 深蓝金融 + 绿色产业 ===== */
:root{
  --navy:#0A1628;          /* 主背景/导航 */
  --navy2:#0F2038;
  --blue:#1F3A5F;          /* 辅助浅蓝灰 */
  --green:#2E5E4E;         /* 环保语义墨绿 */
  --gold:#C9A84C;          /* 强调/CTA */
  --gold-lt:#E3C87B;
  --white:#FFFFFF;
  --ink:#0B1522;
  --muted:rgba(255,255,255,.62);
  --line:rgba(255,255,255,.10);
  --line-gold:rgba(201,168,76,.42);
  --radius:14px;
  --maxw:1280px;
  --font-en:Inter,"SF Pro Display",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",var(--font-en);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-cn);background:var(--navy);color:var(--white);line-height:1.7;-webkit-font-smoothing:antialiased}
body.dark{background:var(--navy);color:var(--white)}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,22,40,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;gap:32px;height:72px}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand-mark{font-family:var(--font-en);font-weight:800;letter-spacing:.5px;color:var(--navy);background:linear-gradient(135deg,var(--gold),var(--gold-lt));padding:6px 10px;border-radius:8px;font-size:15px}
.brand-logo{display:block;height:43px;width:auto;flex:0 0 auto;filter:drop-shadow(0 2px 8px rgba(0,0,0,.35))}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:700;white-space:nowrap}
.brand-text small{font-size:11px;color:var(--muted);letter-spacing:.4px;white-space:nowrap}
.site-nav{display:flex;gap:28px;margin-left:auto}
.site-nav a{font-size:14.5px;color:rgba(255,255,255,.82);transition:color .2s;white-space:nowrap}
.site-nav a:hover{color:var(--gold-lt)}
.nav-actions{display:flex;align-items:center;gap:14px}
.lang-btn{background:transparent;border:1px solid var(--line-gold);color:var(--gold-lt);padding:6px 16px;border-radius:999px;font-size:13px;letter-spacing:.6px;transition:.2s}
.lang-btn:hover{background:rgba(201,168,76,.14)}
.nav-burger{display:none;background:none;border:0;flex-direction:column;gap:5px;padding:6px}
.nav-burger span{width:22px;height:2px;background:var(--white);border-radius:2px;transition:.25s}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:42px 0 32px}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse at 50% 30%,#000 30%,transparent 75%)}
.hero-glow{position:absolute;inset:auto;top:-180px;right:-140px;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(46,94,78,.35),transparent 60%);filter:blur(30px)}
.hero-inner{position:relative;max-width:920px;margin:0 auto;text-align:center}
.hero-kicker{font-family:var(--font-en);font-size:13px;letter-spacing:2.5px;color:var(--gold-lt);text-transform:uppercase;margin-bottom:8px}
.hero-title{font-size:clamp(30px,4vw,44px);line-height:1.22;font-weight:800;letter-spacing:-.5px;display:inline-block}
.hero-title > span{display:block;text-align:justify;text-align-last:justify;text-justify:inter-ideograph;min-width:480px}
.hero-title .gold{color:var(--gold-lt)}
/* 英文版：英文句子长于中文，取消两端对齐并适当缩小字号，避免出现孤行 */
html[lang="en"] .hero-title{font-size:clamp(24px,2.9vw,34px);letter-spacing:-.3px;max-width:820px}
html[lang="en"] .hero-title > span{text-align:center;text-align-last:auto;text-justify:auto;min-width:0}
.hero-sub{max-width:100%;margin:8px 0 12px;color:var(--muted);font-size:clamp(15px,1.6vw,17.5px)}
.hero-cta{display:flex;gap:6px;flex-wrap:wrap;justify-content:center}
.hero-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:15px;font-size:13px;color:rgba(255,255,255,.5);letter-spacing:.3px;justify-content:center}
.hero-meta span{position:relative;padding-left:14px}
.hero-meta span::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:6px;height:6px;border-radius:50%;background:var(--green)}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:8px;font-size:15px;font-weight:600;transition:.22s;border:1px solid transparent;white-space:nowrap}
.btn-gold{background:linear-gradient(135deg,var(--gold),#b8932f);color:var(--navy)}
.btn-gold:hover{filter:brightness(1.1);transform:translateY(-1px)}
.btn-ghost{border-color:rgba(255,255,255,.3);color:var(--white);background:transparent}
.btn-ghost:hover{border-color:var(--gold-lt);color:var(--gold-lt)}
.btn-outline{border-color:var(--line-gold);color:var(--gold-lt)}
.btn-outline:hover{background:rgba(201,168,76,.12)}
.btn-sm{padding:9px 18px;font-size:13.5px}

/* ---------- 数字带 ---------- */
.stats-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(31,58,95,.25),transparent)}
.stats-wrap{padding:15px 0}
.stats-kinds{display:flex;align-items:baseline;justify-content:center;flex-wrap:wrap;column-gap:12px;row-gap:8px;margin-bottom:10px;text-align:center}
.stats-kinds b{color:var(--gold-lt);font-size:15px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.stats-kinds span{color:var(--muted);font-size:13px;line-height:1.9;max-width:920px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.stat{text-align:center;padding:8px 4px}
.stat-num{font-family:var(--font-en);font-size:clamp(30px,4vw,46px);font-weight:800;color:var(--gold-lt);line-height:1}
.stat-num i{font-style:normal;font-size:.62em;vertical-align:top;margin-left:2px}
.stat-label{margin-top:4px;font-size:13.5px;color:var(--muted)}

/* ---------- 通用 section ---------- */
.section{padding:32px 0}
.section-alt{background:linear-gradient(180deg,rgba(31,58,95,.18),rgba(10,22,40,0));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:100%;margin-bottom:18px}
.sec-eyebrow{font-family:var(--font-en);font-size:12.5px;letter-spacing:2.6px;color:rgba(255,255,255,.5);text-transform:uppercase;margin-bottom:5px}
.gold-text{color:var(--gold-lt)}
.sec-head h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;line-height:1.25;letter-spacing:-.3px}
.sec-head p:last-child{margin-top:5px;color:var(--muted);font-size:16px}

/* ---------- 三大支柱 ---------- */
.pillars-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.pillar-card{background:linear-gradient(180deg,rgba(31,58,95,.28),rgba(10,22,40,.4));border:1px solid var(--line);border-radius:var(--radius);padding:14px 22px;transition:.25s}
.pillar-card:hover{transform:translateY(-4px);border-color:var(--line-gold)}
.pillar-icon{font-size:22px;color:var(--gold-lt);margin-bottom:6px}
.pillar-card h3{font-size:20px;font-weight:700;margin-bottom:6px}
.pillar-card p{color:var(--muted);font-size:14.5px}

/* ---------- AI 服务市场带 ---------- */
.ai-market{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}
.mk-chip{flex:1 1 205px;min-width:0;background:rgba(46,94,78,.14);border:1px solid rgba(126,198,166,.34);border-radius:12px;padding:16px 18px;transition:.25s}
.mk-chip:hover{border-color:rgba(126,198,166,.7);transform:translateY(-2px)}
.mk-chip b{display:block;font-family:var(--font-en);font-size:clamp(26px,3vw,34px);font-weight:800;line-height:1.05;color:#9FE0C0;letter-spacing:.3px}
.mk-chip span{display:block;margin-top:9px;font-size:12.5px;color:rgba(255,255,255,.74);line-height:1.55}

/* ---------- AI 财务 ---------- */
.ai-fin-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-bottom:34px}
.fin-chip{background:rgba(10,22,40,.6);border:1px solid var(--line-gold);border-radius:12px;text-align:center;padding:22px 12px}
.fin-chip b{display:block;font-family:var(--font-en);font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--gold-lt);line-height:1.1}
.fin-chip span{display:block;margin-top:8px;font-size:13px;color:var(--muted)}
.ai-block-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.ai-card{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.ai-card h3{font-size:18px;font-weight:700;margin-bottom:12px}
.ai-card p{color:var(--muted);font-size:14.5px}
.ai-card .price-line{font-family:var(--font-en);color:var(--gold-lt);font-weight:700;font-size:20px;margin-bottom:8px}

/* ---------- 项目卡片 ---------- */
.proj-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.proj-grid-solo{grid-template-columns:1fr}
.proj-card{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--radius);padding:18px 22px;display:flex;flex-direction:column;gap:8px;transition:.25s}
.proj-card:hover{border-color:var(--line-gold);transform:translateY(-3px)}
.proj-tag{display:inline-block;align-self:flex-start;font-size:12px;color:var(--green);background:rgba(46,94,78,.28);border:1px solid rgba(46,94,78,.55);padding:3px 12px;border-radius:999px;letter-spacing:.4px}
.proj-card h2,.proj-card h3{font-size:21px;font-weight:700}
.proj-card.wide{padding:38px}
.proj-card p{color:var(--muted);font-size:14.5px}
.proj-loc{font-size:13px;color:rgba(255,255,255,.45);margin:0!important}
.text-link{color:var(--gold-lt);font-size:14px;margin-top:auto;padding-top:8px}
.text-link:hover{text-decoration:underline}
.proj-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:6px}
.proj-head .btn{margin-left:auto}
.sec-cta{text-align:center;margin-top:18px}

/* ---------- CTA / 页脚 ---------- */
.cta-market{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin:-2px 0 12px}
.cta-market span{border:1px solid var(--line-gold);color:var(--gold-lt);background:rgba(201,168,76,.09);border-radius:999px;padding:6px 16px;font-size:13px;letter-spacing:.3px;white-space:nowrap}
.section-cta{background:linear-gradient(120deg,#10263f,#0A1628 55%);text-align:center}
.cta-inner{max-width:1080px}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin-bottom:10px;white-space:nowrap}
.cta-inner p{color:var(--muted);margin-bottom:12px}
.site-footer{border-top:1px solid var(--line);background:#081120;padding:24px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding-bottom:18px}
.footer-col h4{font-size:13px;color:var(--gold-lt);letter-spacing:1.4px;text-transform:uppercase;margin-bottom:6px}
.footer-col p,.footer-col a{display:block;color:var(--muted);font-size:13.5px;line-height:1.9}
.footer-col a:hover{color:var(--white)}
.footer-bottom{border-top:1px solid var(--line);padding:12px 24px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12.5px;color:rgba(255,255,255,.4)}
.proto-note{font-size:12px}

/* ---------- 子页 hero ---------- */
.page-hero{padding:32px 0 12px}
.page-hero h1{font-size:clamp(32px,4.6vw,52px);font-weight:800;letter-spacing:-.4px;margin-bottom:6px}
.page-hero-sub{color:var(--muted);font-size:16px;max-width:680px}

/* ---------- 对比表 ---------- */
.table-wrap{margin-top:20px;overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
.cmp-table{width:100%;border-collapse:collapse;min-width:1000px}
.cmp-table th{background:rgba(31,58,95,.35);font-size:13px;letter-spacing:1.2px;text-transform:uppercase;color:var(--gold-lt);text-align:left;padding:16px 18px;font-weight:600;white-space:nowrap}
.cmp-table td{padding:18px;font-size:14.5px;border-top:1px solid var(--line);color:var(--muted);vertical-align:top}
.cmp-table tr:hover td{background:rgba(255,255,255,.03)}
.cmp-table td:first-child{color:var(--white);font-weight:600}
.table-note{margin-top:14px;font-size:12.5px;color:rgba(255,255,255,.4)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:30px}
  .ai-fin-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .site-nav{position:fixed;inset:72px 0 auto 0;background:#0B1B30;flex-direction:column;padding:24px 28px 32px;gap:6px;transform:translateY(-12px);opacity:0;pointer-events:none;transition:.25s;border-bottom:1px solid var(--line)}
  .site-nav.open{transform:none;opacity:1;pointer-events:auto}
  .site-nav a{padding:12px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-burger{display:flex}
  .brand-text small{display:none}
  .hero{padding:28px 0 22px}
  .hero-inner{text-align:left;padding:0 18px}
  .hero-title{font-size:clamp(22px,6.2vw,30px);white-space:normal}
  .hero-title > span{display:block;text-align:left;min-width:0;letter-spacing:0}
  html[lang="en"] .hero-title > span{text-align:left}
  .hero-title .gold{text-align:left}
  .hero-cta{justify-content:flex-start}
  .hero-meta{justify-content:flex-start}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .pillars-grid,.ai-block-grid,.proj-grid{grid-template-columns:1fr}
  .ai-fin-grid{grid-template-columns:repeat(2,1fr)}
  .proj-head{flex-direction:column}
  .proj-head .btn{margin-left:0}
  .section{padding:22px 0}
  .cta-inner h2{white-space:normal;font-size:clamp(20px,5vw,26px)}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* ---------- 关于我们下拉导航 ---------- */
.nav-drop{position:relative;display:inline-flex;align-items:center;gap:6px;padding:10px 0;margin:-10px 0}
.nav-drop-trigger{display:inline-flex;align-items:center;gap:6px}
.nav-drop-caret{font-size:10px;line-height:1;color:rgba(255,255,255,.55);transition:transform .22s;pointer-events:none}
.nav-drop:hover .nav-drop-caret,.nav-drop:focus-within .nav-drop-caret{transform:rotate(180deg)}
.nav-drop-menu{position:absolute;top:calc(100% + 4px);left:-16px;min-width:250px;background:#0B1B30;border:1px solid var(--line);border-radius:12px;padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:.22s;box-shadow:0 18px 44px rgba(0,0,0,.5);z-index:120}
.nav-drop:hover .nav-drop-menu,.nav-drop:focus-within .nav-drop-menu{opacity:1;visibility:visible;transform:none}
.nav-drop-menu a{display:flex;flex-direction:column;gap:3px;padding:10px 14px;border-radius:9px;font-size:14px;line-height:1.5;color:rgba(255,255,255,.84);border:0}
.nav-drop-menu a span:first-child{white-space:nowrap}
.nav-drop-menu a:hover{background:rgba(201,168,76,.12);color:var(--gold-lt)}
.nav-drop-menu a + a{margin-top:2px}
.nav-drop-menu .nav-drop-sub{font-size:11px;color:var(--muted);line-height:1.5;letter-spacing:.2px;white-space:normal}
@media(max-width:768px){
  .nav-drop{display:block;width:100%;margin:0;padding:0}
  .nav-drop-caret{display:none}
  .nav-drop-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:transparent;border:0;border-radius:0;min-width:0;padding:0 0 4px}
  .nav-drop-menu a{padding:9px 0 9px 14px;font-size:15px;border-bottom:0}
  .nav-drop-menu a:hover{background:transparent;color:var(--gold-lt)}
  .nav-drop-menu a + a{margin-top:0}
}

/* ---------- 子页通用辅助 ---------- */
.page-hero.about-hero{padding:110px 0 30px}
.count-band{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:26px}
.count-band b{font-size:56px;line-height:1;font-weight:800;color:var(--gold);background:linear-gradient(135deg,var(--gold),#E7C878);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.count-band span{color:var(--muted);font-size:14.5px;letter-spacing:.4px;max-width:300px;line-height:1.7}
.note-box{margin-top:24px;padding:16px 18px;border:1px solid var(--line);border-left:3px solid var(--gold);border-radius:10px;background:rgba(201,168,76,.05);color:var(--muted);font-size:13.5px;line-height:1.85}
.tm-slot{display:inline-block;margin-top:14px;padding:5px 12px;border:1px dashed rgba(255,255,255,.26);border-radius:999px;color:rgba(255,255,255,.5);font-size:12px;letter-spacing:.4px}
.about-cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px}
.intro-paragraph{color:var(--muted);font-size:16px;line-height:2;margin:0 0 14px}
.intro-paragraph strong{color:var(--white);font-weight:600}