/* =========================================================
   CSHIA 中智盟咨询｜投资 — 咨询研究风格
   ========================================================= */
:root{
    --ink:#0B1F3A;          /* 深墨蓝 */
    --ink-2:#12243F;        /* 次级深蓝 */
    --blue:#15478C;         /* 品牌蓝 */
    --blue-2:#1E5BB8;       /* 亮蓝 */
    --teal:#12B5A6;         /* 研究青 */
    --gold:#C9A24B;         /* 资本金 */
    --paper:#FFFFFF;
    --tint:#F4F6F9;         /* 浅灰底 */
    --line:#E4E9F0;         /* 分割线 */
    --line-d:rgba(255,255,255,.10);
    --text:#16202E;
    --muted:#5C6B7E;
    --text-l:#C9D4E2;       /* 深底浅字 */
    --text-l-2:#8FA0B5;
    --r:14px;
    --r-lg:22px;
    --shadow:0 18px 50px rgba(11,31,58,.10);
    --shadow-s:0 6px 20px rgba(11,31,58,.07);
    --ease:cubic-bezier(.22,.61,.36,1);
    --maxw:1180px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}
body{
    font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
    color:var(--text);
    background:var(--paper);
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* ===================== Header / Nav ===================== */
.site-header{
    position:fixed;top:0;left:0;right:0;z-index:100;
    background:rgba(255,255,255,.82);
    backdrop-filter:saturate(180%) blur(18px);
    -webkit-backdrop-filter:saturate(180%) blur(18px);
    border-bottom:1px solid transparent;
    transition:border-color .3s var(--ease),background .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.scrolled{border-color:var(--line);box-shadow:0 4px 24px rgba(11,31,58,.06)}
.nav-inner{
    max-width:var(--maxw);margin:0 auto;padding:0 28px;height:72px;
    display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{width:38px;height:38px;border-radius:50%;object-fit:cover;flex-shrink:0}
.brand-mark{
    font-size:21px;font-weight:900;letter-spacing:.5px;
    color:var(--ink);
}
.brand-sub{font-size:12.5px;font-weight:500;color:var(--muted);letter-spacing:.3px}
.nav-desktop{display:flex;gap:4px;margin-left:auto}
.nav-desktop a{
    font-size:14.5px;font-weight:500;color:var(--muted);
    padding:8px 14px;border-radius:8px;transition:color .25s,background .25s;
}
.nav-desktop a:hover{color:var(--blue);background:rgba(21,71,140,.06)}
.nav-cta{
    font-size:14px;font-weight:600;color:#fff;
    background:var(--ink);padding:9px 20px;border-radius:999px;
    transition:background .25s,transform .25s;white-space:nowrap;
}
.nav-cta:hover{background:var(--blue);transform:translateY(-1px)}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s var(--ease)}
.nav-burger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.active span:nth-child(2){opacity:0}
.nav-burger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mobile{
    display:none;flex-direction:column;gap:2px;
    padding:8px 28px 18px;background:#fff;border-bottom:1px solid var(--line);
}
.nav-mobile a{font-size:15px;font-weight:500;color:var(--text);padding:12px 8px;border-radius:8px}
.nav-mobile a:hover{background:var(--tint)}
.nav-cta-mobile{
    margin-top:8px;text-align:center;background:var(--ink);color:#fff!important;
    border-radius:999px;
}

/* ===================== Hero ===================== */
.hero{
    position:relative;min-height:100vh;display:flex;align-items:center;
    background:radial-gradient(120% 120% at 80% 0%,#143057 0%,var(--ink) 55%,#07182C 100%);
    color:#fff;padding:120px 0 80px;overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-grid{
    position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
    background-size:56px 56px;
    -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 35%,#000 30%,transparent 75%);
    mask-image:radial-gradient(ellipse 80% 60% at 50% 35%,#000 30%,transparent 75%);
}
.hero-glow{
    position:absolute;top:18%;right:8%;width:520px;height:520px;border-radius:50%;
    background:radial-gradient(circle,rgba(18,181,166,.22),transparent 65%);
    filter:blur(10px);animation:float 7s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(26px)}}
.hero-inner{position:relative;z-index:1;max-width:var(--maxw);margin:0 auto;padding:0 28px;width:100%}
.hero-eyebrow{
    display:inline-block;font-size:13px;font-weight:600;letter-spacing:2px;
    color:var(--teal);text-transform:uppercase;margin-bottom:22px;
    padding:6px 14px;border:1px solid rgba(18,181,166,.35);border-radius:999px;
}
.hero-title{
    font-size:clamp(30px,5vw,56px);font-weight:900;line-height:1.22;
    letter-spacing:-.5px;margin-bottom:26px;
}
.hero-title-accent{color:var(--teal)}
.hero-lede{
    max-width:680px;font-size:16.5px;line-height:1.95;color:var(--text-l);
    font-weight:300;margin-bottom:48px;
}
.hero-metrics{display:flex;flex-wrap:wrap;gap:14px 48px;margin-bottom:52px}
.hero-metric{display:flex;flex-direction:column;gap:4px}
.hm-num{
    font-size:40px;font-weight:900;line-height:1;
    background:linear-gradient(120deg,#fff,#9FD9D2);
    -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hm-label{font-size:13px;color:var(--text-l-2);letter-spacing:.5px}
.hero-scroll{
    display:inline-flex;align-items:center;gap:8px;font-size:13px;
    color:var(--text-l);transition:gap .25s,color .25s;
}
.hero-scroll:hover{gap:14px;color:#fff}
.hero-scroll svg{transform:rotate(90deg)}

/* ===================== Sections ===================== */
.section{padding:108px 0;position:relative}
.section-light{background:var(--paper)}
.section-tint{background:var(--tint)}
.section-dark{background:var(--ink);color:#fff}

.section-head{display:flex;gap:28px;align-items:flex-start;margin-bottom:56px}
.section-index{
    font-size:54px;font-weight:900;line-height:1;color:var(--blue);
    opacity:.16;flex-shrink:0;font-feature-settings:"tnum";
}
.section-index.light{color:var(--teal)}
.section-kicker{
    font-size:13px;font-weight:700;letter-spacing:2px;text-transform:uppercase;
    color:var(--teal);margin-bottom:8px;
}
.section-kicker.light{color:var(--teal)}
.section-title{font-size:clamp(26px,3.4vw,38px);font-weight:900;letter-spacing:-.5px;color:var(--text)}
.section-title.light{color:#fff}
.section-desc{max-width:720px;margin-top:12px;font-size:16px;color:var(--muted);line-height:1.9}
.section-desc.light{color:var(--text-l)}
.section-desc.light.nowrap{white-space:nowrap;font-size:clamp(13px,1.5vw,16px)}

/* ===================== 01 市场洞察 ===================== */
.insight-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:64px}
.report-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r);
    padding:28px 24px;position:relative;overflow:hidden;
    transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s;
}
.report-card::before{
    content:"";position:absolute;left:0;top:0;height:100%;width:3px;
    background:linear-gradient(var(--teal),var(--blue));transform:scaleY(0);transform-origin:top;
    transition:transform .35s var(--ease);
}
.report-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.report-card:hover::before{transform:scaleY(1)}
.report-tag{
    display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:.5px;
    color:var(--blue);background:rgba(21,71,140,.07);padding:4px 10px;border-radius:6px;margin-bottom:16px;
}
.report-name{font-size:17px;font-weight:700;color:var(--text);margin-bottom:10px;line-height:1.4}
.report-note{font-size:13.5px;color:var(--muted);line-height:1.75}

.feed{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:36px 40px;
}
.feed-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:8px;flex-wrap:wrap}
.feed-title{font-size:18px;font-weight:700;color:var(--text)}
.feed-hint{font-size:13px;color:var(--muted)}
.feed-hint a{color:var(--blue);text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:1px;transition:opacity .2s}
.feed-hint a:hover{opacity:.7}
.feed-list{margin-top:18px}
.feed-item{
    display:flex;align-items:center;gap:18px;padding:16px 4px;
    border-top:1px solid var(--line);font-size:14.5px;
}
.feed-item:first-child{border-top:0}
.feed-date{font-size:13px;font-weight:700;color:var(--teal);min-width:70px;flex-shrink:0;font-feature-settings:"tnum"}
.feed-cat{
    font-size:12px;font-weight:600;color:var(--blue);
    background:rgba(21,71,140,.06);padding:3px 10px;border-radius:6px;flex-shrink:0;
}
.feed-text{color:var(--text);font-weight:400}

/* ===================== 01 市场洞察 · 生态图谱 ===================== */
.map-block{margin-bottom:64px}
.map-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap}
.map-title{font-size:18px;font-weight:700;color:var(--text)}
.map-hint{font-size:13px;color:var(--muted)}
.map-figure{
    display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:10px;overflow-x:auto;-webkit-overflow-scrolling:touch;
    box-shadow:var(--shadow-s);transition:box-shadow .35s,border-color .35s;
}
.map-figure:hover{box-shadow:var(--shadow);border-color:var(--teal)}
.map-figure img{min-width:900px;width:100%;border-radius:10px}

/* ===================== 02 产业服务 ===================== */
.sub-block{margin-bottom:54px}
.sub-block:last-child{margin-bottom:0}
.sub-title{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:700;color:var(--text);margin-bottom:24px}
.sub-dot{width:9px;height:9px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(18,181,166,.15)}
.card-grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.svc-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r);
    padding:26px 22px;transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s;
}
.svc-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-s);border-color:var(--blue)}
.svc-no{
    display:inline-block;font-size:11px;font-weight:700;letter-spacing:1px;
    color:var(--teal);margin-bottom:14px;
}
.svc-card h4{font-size:16px;font-weight:700;color:var(--text);margin-bottom:9px}
.svc-card p{font-size:13px;color:var(--muted);line-height:1.7}

/* ===================== 03 人才培育 ===================== */
.pillar-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:56px}
.pillar{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:34px 30px;transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.pillar:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.pillar-tag{
    display:inline-block;font-size:11.5px;font-weight:700;letter-spacing:1px;
    color:var(--blue);background:rgba(21,71,140,.07);padding:4px 12px;border-radius:999px;margin-bottom:18px;
}
.pillar-title{font-size:21px;font-weight:900;color:var(--text);margin-bottom:14px}
.pillar-desc{font-size:14.5px;color:var(--muted);line-height:1.85}

.talent-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:54px}
.ts-item{
    text-align:center;padding:34px 20px;border-radius:var(--r);
    background:var(--ink);color:#fff;
}
.ts-num{
    display:block;font-size:46px;font-weight:900;line-height:1;
    background:linear-gradient(120deg,#fff,#9FD9D2);
    -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
    margin-bottom:8px;font-feature-settings:"tnum";
}
.ts-label{font-size:14px;color:var(--text-l-2)}
.talent-note{font-size:13px;color:var(--muted);text-align:center;margin-top:4px}

/* ===================== 04 活动策划 ===================== */
.event-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:44px}
.event-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r);
    padding:30px 28px;transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.event-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-s)}
.event-year{
    display:inline-block;font-size:12px;font-weight:700;color:var(--teal);
    background:rgba(18,181,166,.1);padding:4px 12px;border-radius:6px;margin-bottom:14px;
    font-feature-settings:"tnum";
}
.event-name{font-size:18px;font-weight:700;color:var(--text);margin-bottom:10px}
.event-desc{font-size:14px;color:var(--muted);line-height:1.8}

.summit-row{
    display:flex;align-items:flex-start;gap:20px;flex-wrap:wrap;
    background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px 30px;
}
.summit-label{font-size:14px;font-weight:700;color:var(--blue);white-space:nowrap;padding-top:4px}
.summit-tags{display:flex;flex-wrap:wrap;gap:10px}
.summit-tags span{
    font-size:13px;color:var(--text);background:var(--tint);
    padding:7px 14px;border-radius:8px;border:1px solid var(--line);
    transition:background .25s,color .25s,border-color .25s;
}
.summit-tags span:hover{background:var(--blue);color:#fff;border-color:var(--blue)}

/* ===================== 05 投资咨询 ===================== */
.invest-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:48px}
.invest-card{
    background:rgba(255,255,255,.04);border:1px solid var(--line-d);
    border-radius:var(--r);padding:28px 24px;position:relative;
    transition:background .35s var(--ease),transform .35s var(--ease),border-color .35s;
}
.invest-card:hover{background:rgba(18,181,166,.1);transform:translateY(-5px);border-color:rgba(18,181,166,.35)}
.ic-no{
    position:absolute;top:22px;right:24px;font-size:13px;font-weight:700;
    color:var(--text-l-2);font-feature-settings:"tnum";
}
.invest-card h4{font-size:17px;font-weight:700;color:#fff;margin-bottom:10px;padding-right:30px}
.invest-card p{font-size:13.5px;color:var(--text-l);line-height:1.75}
.invest-statement{
    text-align:center;font-size:clamp(18px,2.4vw,24px);font-weight:700;color:#fff;
    max-width:760px;margin:0 auto;line-height:1.6;
}
.invest-statement strong{color:var(--teal)}

/* ===================== CTA ===================== */
.section-cta{
    background:linear-gradient(135deg,var(--blue) 0%,var(--ink) 100%);
    color:#fff;text-align:center;
}
.cta-inner{max-width:720px;margin:0 auto}
.cta-eyebrow{font-size:13px;font-weight:600;letter-spacing:2px;color:var(--teal);text-transform:uppercase;margin-bottom:14px}
.cta-title{font-size:clamp(26px,3.4vw,38px);font-weight:900;margin-bottom:14px}
.cta-desc{font-size:15.5px;color:var(--text-l);line-height:1.85;margin-bottom:44px}
.qr-row{display:flex;justify-content:center;gap:32px;flex-wrap:wrap}
.qr-card{background:#fff;border-radius:var(--r-lg);padding:30px 32px;width:248px}
.qr-box{
    width:150px;height:150px;margin:0 auto 20px;border-radius:var(--r);
    background:#fff;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.qr-box img{width:100%;height:100%;object-fit:cover;display:block}
.qr-name{font-size:16px;font-weight:700;color:var(--text);margin-bottom:6px}
.qr-note{font-size:12.5px;color:var(--muted);white-space:nowrap}

/* ===================== Footer ===================== */
.site-footer{background:#07182C;color:var(--text-l);padding:64px 0 0}
.footer-inner{display:grid;grid-template-columns:1.4fr 2fr;gap:56px;padding-bottom:48px}
.footer-logo{font-size:26px;font-weight:900;color:#fff;letter-spacing:.5px}
.footer-tag{font-size:13px;color:var(--teal);font-weight:600;margin:6px 0 16px;letter-spacing:.5px}
.footer-desc{font-size:13.5px;color:var(--text-l-2);line-height:1.8;max-width:360px}
.footer-addr{margin-top:14px;font-size:13px;color:var(--text-l-2);line-height:1.9;border-top:1px solid rgba(255,255,255,.1);padding-top:14px;max-width:360px}
.footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.fn-col h5{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.fn-col a{display:block;font-size:13.5px;color:var(--text-l-2);padding:6px 0;transition:color .25s,padding-left .25s}
.fn-col a:hover{color:var(--teal);padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0}
.footer-bottom p{font-size:13px;color:var(--text-l-2);text-align:center}

/* ===================== Reveal ===================== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.visible{opacity:1;transform:none}

/* ===================== Responsive ===================== */
@media (max-width:980px){
    .nav-desktop,.nav-cta{display:none}
    .nav-burger{display:flex}
    .nav-mobile.open{display:flex}
    .section{padding:80px 0}
    .section-head{margin-bottom:40px}
    .section-index{font-size:42px}
    .insight-grid,.card-grid-4,.invest-grid{grid-template-columns:repeat(2,1fr)}
    .pillar-grid{grid-template-columns:1fr}
    .event-grid{grid-template-columns:1fr}
    .footer-inner{grid-template-columns:1fr;gap:36px}
}
@media (max-width:620px){
    .container{padding:0 20px}
    .nav-inner{padding:0 20px}
    .hero-title{font-size:28px}
    .hero-metrics{gap:14px 28px}
    .hm-num{font-size:32px}
    .insight-grid,.card-grid-4,.invest-grid,.talent-stats,.footer-nav{grid-template-columns:1fr}
    .feed{padding:28px 24px}
    .summit-row{flex-direction:column;gap:14px}
    .qr-card{width:100%;max-width:280px}
    .section-index{font-size:34px}
    .section-desc.light.nowrap{white-space:normal}
}