/* ============================================================
   中国商学院发展论坛暨教育盛典 · 原创案例专题
   设计语言：深墨蓝 + 香槟金（颁奖礼质感）
   ============================================================ */
:root{
  /* 深色（高端） */
  --ink-950:#070A12;
  --ink-900:#0B1120;
  --ink-850:#0F1626;
  --ink-800:#141D31;
  --ink-700:#1C2842;
  /* 金色强调 */
  --gold:#C9A96A;
  --gold-bright:#EAD8A8;
  --gold-deep:#9C7734;
  --gold-soft:rgba(201,169,106,.14);
  /* 浅色 */
  --paper:#F7F4ED;
  --paper-2:#F1EDE2;
  --bg:#FFFFFF;
  --text:#0E1626;
  --text-2:#3D4A5E;
  --text-3:#6E7A8C;
  --line:#E4E0D5;
  --line-dark:rgba(201,169,106,.22);
  /* 字体 */
  --font-display:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  /* 字号 */
  --fs-hero:clamp(2.6rem,7.2vw,5.4rem);
  --fs-h2:clamp(1.75rem,3.8vw,2.7rem);
  --fs-h3:clamp(1.15rem,2vw,1.45rem);
  /* 间距 */
  --space-1:.25rem; --space-2:.5rem; --space-3:.75rem; --space-4:1rem;
  --space-5:1.5rem; --space-6:2rem; --space-7:2.5rem; --space-8:3rem; --space-10:4rem;
  --space-12:5rem; --space-16:7rem;
  /* 圆角与阴影 */
  --r-sm:8px; --r-md:12px; --r-lg:18px; --r-xl:26px; --r-full:999px;
  --shadow-sm:0 2px 10px rgba(10,17,34,.06);
  --shadow-md:0 12px 34px rgba(10,17,34,.10);
  --shadow-lg:0 28px 70px rgba(10,17,34,.14);
  --shadow-gold:0 10px 30px rgba(201,169,106,.22);
  --ease:cubic-bezier(.22,1,.36,1);
}

/* ============================================================ 基础 */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-sans);
  background:var(--bg);color:var(--text);
  line-height:1.75;font-size:16px;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:rgba(201,169,106,.28)}
.container{width:min(1440px,92vw);margin-inline:auto}
.container-narrow{width:min(980px,92vw);margin-inline:auto}

/* ============================================================ 导航 */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:200;
  padding:1rem 0;
  transition:background .45s var(--ease),box-shadow .45s,border-color .45s,padding .45s;
  border-bottom:1px solid transparent;
}
.nav.solid{
  background:rgba(7,10,18,.86);
  backdrop-filter:blur(18px) saturate(160%);-webkit-backdrop-filter:blur(18px) saturate(160%);
  border-bottom-color:var(--line-dark);padding:.6rem 0;
}
.nav-inner{display:flex;align-items:center;gap:var(--space-6)}
.nav-logo{display:flex;align-items:center;gap:.7rem}
.nav-logo-mark{
  width:40px;height:40px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  color:#0A1220;font-family:var(--font-display);font-weight:700;font-size:1.15rem;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-gold);
}
.nav-logo-text{display:flex;flex-direction:column;line-height:1.25}
.nav-logo-text b{font-size:1rem;font-weight:600;color:#F4F1E8;letter-spacing:.02em}
.nav-logo-text span{font-size:.62rem;letter-spacing:.22em;color:var(--gold);text-transform:uppercase}
.nav-links{display:flex;gap:var(--space-5);margin-left:auto}
.nav-links a{
  position:relative;font-size:.88rem;color:rgba(244,241,232,.78);padding:.3rem 0;
  transition:color .3s;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:linear-gradient(90deg,var(--gold),transparent);transition:width .35s var(--ease);
}
.nav-links a:hover,.nav-links a.active{color:#F4F1E8}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-cta{
  flex:none;font-size:.85rem;padding:.55rem 1.15rem;border-radius:var(--r-full);
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  color:#14100A;font-weight:600;letter-spacing:.02em;
  box-shadow:var(--shadow-gold);transition:transform .3s var(--ease),box-shadow .3s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(201,169,106,.32)}
.burger{display:none;flex-direction:column;gap:5px;padding:.4rem;margin-left:auto}
.burger span{display:block;width:22px;height:2px;background:#F4F1E8;border-radius:2px;transition:transform .35s var(--ease),opacity .3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{
  position:fixed;inset:0;z-index:190;background:rgba(7,10,18,.97);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  display:flex;flex-direction:column;justify-content:center;gap:var(--space-2);
  padding:0 8vw;opacity:0;pointer-events:none;transition:opacity .4s var(--ease);
}
.mobile-menu.open{opacity:1;pointer-events:auto}
.mobile-menu a{
  font-family:var(--font-display);font-size:1.7rem;color:#F4F1E8;
  padding:.7rem 0;border-bottom:1px solid rgba(201,169,106,.14);
}
.mobile-menu a small{display:block;font-family:var(--font-sans);font-size:.72rem;color:var(--gold);letter-spacing:.14em;margin-top:.1rem}

/* ============================================================ 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.8rem 1.6rem;border-radius:var(--r-full);font-size:.92rem;font-weight:600;
  letter-spacing:.02em;transition:transform .3s var(--ease),box-shadow .3s,background .3s,color .3s,border-color .3s;
  white-space:nowrap;
}
.btn-gold{background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));color:#14100A;box-shadow:var(--shadow-gold)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(201,169,106,.34)}
.btn-outline{border:1px solid rgba(201,169,106,.5);color:var(--gold-bright);background:rgba(201,169,106,.06)}
.btn-outline:hover{background:rgba(201,169,106,.14);border-color:var(--gold);transform:translateY(-2px)}
.btn-ghost-dark{border:1px solid rgba(244,241,232,.28);color:#F4F1E8;background:rgba(244,241,232,.05)}
.btn-ghost-dark:hover{background:rgba(244,241,232,.12);transform:translateY(-2px)}
.btn-navy{background:var(--ink-900);color:#F4F1E8}
.btn-navy:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-ink{background:var(--ink-900);color:#F4F1E8}
.btn-ink:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-lg{padding:1rem 2.1rem;font-size:1rem}

/* ============================================================ 通用区块 */
.section{padding:clamp(4.5rem,9vw,8rem) 0;position:relative}
.section.dark{background:var(--ink-950);color:#F4F1E8}
.section.paper{background:var(--paper)}
.section-head{margin-bottom:var(--space-10)}
.section-head.center{text-align:center}
.eyebrow{
  display:inline-block;font-size:.78rem;letter-spacing:.2em;
  color:var(--gold-deep);font-weight:600;margin-bottom:var(--space-3);
}
.section.dark .eyebrow{color:var(--gold)}
.section-head h2{
  font-family:var(--font-display);font-weight:700;line-height:1.3;
  font-size:var(--fs-h2);letter-spacing:.01em;
}
.section-head .lead{
  margin-top:var(--space-4);color:var(--text-2);font-size:1.02rem;line-height:1.95;max-width:760px;
}
.section-head.center .lead{margin-inline:auto}
.section.dark .lead{color:rgba(244,241,232,.72)}

/* 滚动显现 */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0ms)}
.reveal.in{opacity:1;transform:none}

/* ============================================================ Hero */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:center;
  padding:8.5rem 0 5rem;overflow:hidden;color:#F4F1E8;
  background:
    radial-gradient(1100px 620px at 78% 8%, rgba(201,169,106,.20), transparent 62%),
    radial-gradient(900px 700px at 6% 92%, rgba(46,90,160,.28), transparent 66%),
    linear-gradient(158deg,#070A12 0%,#101A2E 52%,#080D18 100%);
}
.hero::before{
  content:"";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:76px 76px;
  mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
}
.hero-bar{position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--gold-deep),var(--gold-bright) 45%,var(--gold-deep))}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:var(--space-10);align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:.6rem;font-size:.78rem;letter-spacing:.2em;
  color:var(--gold-bright);border:1px solid rgba(201,169,106,.4);border-radius:var(--r-full);
  padding:.42rem 1.05rem;margin-bottom:var(--space-6);background:rgba(201,169,106,.07);
}
.hero h1{
  font-family:var(--font-display);font-weight:700;
  font-size:var(--fs-hero);line-height:1.1;letter-spacing:.02em;
}
.hero h1 em{
  font-style:normal;
  background:linear-gradient(120deg,#F6E7C0,#C9A96A 55%,#9C7734);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.hero-sub{margin-top:var(--space-5);font-size:clamp(1rem,1.5vw,1.18rem);color:rgba(244,241,232,.8);line-height:1.95;max-width:560px;font-weight:300}
.hero-meta{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-top:var(--space-6)}
.chip{
  display:inline-flex;align-items:center;gap:.5rem;font-size:.85rem;color:rgba(244,241,232,.9);
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-full);padding:.5rem 1.05rem;
}
.chip svg{width:14px;height:14px;color:var(--gold-bright);flex:none}
.hero-cta{display:flex;flex-wrap:wrap;gap:var(--space-3);margin-top:var(--space-8)}
.hero-count{
  margin-top:var(--space-8);padding-top:var(--space-6);border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:var(--space-8);
}
.cd-item{display:flex;flex-direction:column;gap:.2rem}
.cd-item b{font-family:var(--font-display);font-size:2rem;line-height:1;color:var(--gold-bright);font-weight:700}
.cd-item span{font-size:.78rem;letter-spacing:.1em;color:rgba(244,241,232,.55)}
.hero-art{position:relative}
.hero-art svg{width:100%;height:auto;filter:drop-shadow(0 26px 60px rgba(0,0,0,.5))}
.hero-scroll{
  position:absolute;left:50%;bottom:1.8rem;transform:translateX(-50%);
  font-size:.7rem;letter-spacing:.24em;color:rgba(244,241,232,.45);
  display:flex;flex-direction:column;align-items:center;gap:.5rem;
}
.hero-scroll i{display:block;width:1px;height:36px;background:linear-gradient(180deg,var(--gold),transparent);animation:scrollPulse 2.4s var(--ease) infinite}
@keyframes scrollPulse{0%,100%{opacity:.3;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}

/* ============================================================ 数据条 */
.stats{background:var(--ink-900);color:#F4F1E8;padding:var(--space-10) 0;border-block:1px solid var(--line-dark)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-6)}
.stat-item{text-align:center;position:relative}
.stat-item + .stat-item::before{content:"";position:absolute;left:calc(var(--space-6) / -2);top:12%;height:76%;width:1px;background:rgba(201,169,106,.22)}
.stat-item b{
  display:block;font-family:var(--font-display);font-size:clamp(2.1rem,4.4vw,3.2rem);font-weight:700;line-height:1;
  background:linear-gradient(120deg,#F2E2BB,#C9A96A 60%,#8F6B2C);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.stat-item span{display:block;margin-top:.6rem;font-size:.85rem;color:rgba(244,241,232,.65);letter-spacing:.04em}

/* ============================================================ 原创案例科普 */
.chain{margin-top:var(--space-8)}
.chain-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:var(--space-4);position:relative}
.chain-step{
  position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:var(--space-6) var(--space-4);text-align:center;
  transition:transform .4s var(--ease),box-shadow .4s,border-color .4s;
}
.chain-step:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(201,169,106,.45)}
.chain-step .no{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  width:28px;height:28px;border-radius:50%;background:var(--ink-900);color:var(--gold-bright);
  font-size:.78rem;font-weight:700;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(201,169,106,.4);
}
.chain-step .ico{width:52px;height:52px;margin:0 auto var(--space-4);color:var(--gold-deep)}
.chain-step h4{font-family:var(--font-display);font-size:1.02rem;font-weight:700;margin-bottom:var(--space-2)}
.chain-step p{font-size:.84rem;color:var(--text-2);line-height:1.75}
.chain-arrow{
  position:absolute;top:50%;right:calc(var(--space-4) / -2 - 9px);transform:translateY(-50%);
  width:18px;height:18px;color:var(--gold);z-index:2;pointer-events:none;
}
.chain-note{
  margin-top:var(--space-6);padding:var(--space-5) var(--space-6);border-radius:var(--r-lg);
  background:var(--gold-soft);border:1px solid var(--line-dark);
  font-size:.92rem;color:var(--text-2);line-height:1.9;
}
.chain-note b{color:var(--gold-deep)}
.samples{margin-top:var(--space-8)}
.samples-title{font-size:.82rem;letter-spacing:.16em;color:var(--text-3);margin-bottom:var(--space-4)}
.sample-tags{display:flex;flex-wrap:wrap;gap:.55rem}
.sample-tags span{
  font-size:.84rem;padding:.4rem .95rem;border-radius:var(--r-full);
  background:var(--bg);border:1px solid var(--line);color:var(--text-2);
  transition:border-color .3s,color .3s,transform .3s var(--ease);
}
.sample-tags span:hover{border-color:var(--gold);color:var(--gold-deep);transform:translateY(-2px)}

/* ============================================================ 三大案例库 */
.lib-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6)}
.lib-card{
  position:relative;border-radius:var(--r-xl);overflow:hidden;padding:var(--space-8) var(--space-6);
  background:linear-gradient(170deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid rgba(201,169,106,.24);
  display:flex;flex-direction:column;
  transition:transform .45s var(--ease),border-color .45s,box-shadow .45s;
}
.lib-card:hover{transform:translateY(-8px);border-color:rgba(201,169,106,.5);box-shadow:0 30px 60px rgba(0,0,0,.4)}
/* 清华案例中心：本奖项学术支持，整卡高亮 */
.lib-card.hl{
  background:linear-gradient(170deg,rgba(201,169,106,.15),rgba(201,169,106,.035));
  border-color:rgba(201,169,106,.55);
  box-shadow:0 26px 60px rgba(0,0,0,.35),0 0 0 1px rgba(201,169,106,.18);
  transform:translateY(-10px);
}
.lib-card.hl:hover{transform:translateY(-16px);border-color:rgba(234,216,168,.7);box-shadow:0 34px 70px rgba(0,0,0,.45),0 0 0 1px rgba(201,169,106,.28)}
.lib-card.hl::after{opacity:1;background:linear-gradient(90deg,transparent,var(--gold-bright),transparent)}
.lib-star{
  position:absolute;top:var(--space-5);right:var(--space-5);z-index:2;
  display:inline-flex;align-items:center;gap:.3rem;
  font-size:.72rem;font-weight:700;letter-spacing:.08em;color:#1A1408;
  background:linear-gradient(120deg,#EAD8A8,#C9A96A);
  border-radius:var(--r-full);padding:.34rem .85rem;
  box-shadow:0 6px 18px rgba(201,169,106,.35);
}
.lib-card::after{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.7;
}
.lib-card .lib-tag{
  align-self:flex-start;font-size:.68rem;letter-spacing:.16em;color:var(--gold-bright);
  border:1px solid rgba(201,169,106,.38);border-radius:var(--r-full);padding:.28rem .8rem;margin-bottom:var(--space-5);
}
.lib-card h3{font-family:var(--font-display);font-size:1.32rem;font-weight:700;line-height:1.4;margin-bottom:.3rem}
.lib-card .lib-en{font-size:.72rem;letter-spacing:.14em;color:rgba(244,241,232,.42);margin-bottom:var(--space-5)}
.lib-card .lib-desc{font-size:.88rem;color:rgba(244,241,232,.7);line-height:1.85;margin-bottom:var(--space-6)}
.lib-nums{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4);margin-bottom:var(--space-6)}
.lib-nums div b{
  display:block;font-family:var(--font-display);font-size:1.75rem;font-weight:700;line-height:1;
  background:linear-gradient(120deg,#EAD8A8,#C9A96A 60%,#8F6B2C);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.lib-nums div span{display:block;margin-top:.35rem;font-size:.76rem;color:rgba(244,241,232,.55);line-height:1.5}
.lib-points{list-style:none;display:flex;flex-direction:column;gap:.6rem;margin-top:auto}
.lib-points li{display:flex;gap:.55rem;font-size:.84rem;color:rgba(244,241,232,.78);line-height:1.7}
.lib-points li::before{content:"";flex:none;width:5px;height:5px;border-radius:50%;background:var(--gold);margin-top:.62rem}
.lib-badge{
  margin-top:var(--space-6);padding:.7rem 1rem;border-radius:var(--r-md);
  background:rgba(201,169,106,.1);border:1px dashed rgba(201,169,106,.36);
  font-size:.8rem;color:var(--gold-bright);line-height:1.6;text-align:center;
}

/* ============================================================ 原创案例贡献奖 */
.award{position:relative;overflow:hidden}
.award-wrap{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-10);align-items:start}
.award-left h2{font-family:var(--font-display);font-size:var(--fs-h2);font-weight:700;line-height:1.32}
.award-left .lead{margin-top:var(--space-4);color:var(--text-2);font-size:1rem;line-height:1.95}
.award-quote{
  margin-top:var(--space-6);padding:var(--space-5) var(--space-6);border-left:3px solid var(--gold);
  background:var(--paper-2);border-radius:0 var(--r-md) var(--r-md) 0;
  font-family:var(--font-display);font-size:1.02rem;line-height:1.9;color:var(--text);
}
.award-quote small{display:block;margin-top:.6rem;font-family:var(--font-sans);font-size:.78rem;color:var(--text-3);letter-spacing:.08em}
.award-facts{margin-top:var(--space-8);display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4)}
.fact{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);
  padding:var(--space-5);display:flex;gap:.9rem;align-items:flex-start;
}
.fact .fi{flex:none;width:36px;height:36px;border-radius:10px;background:var(--gold-soft);color:var(--gold-deep);display:flex;align-items:center;justify-content:center}
.fact .fi svg{width:18px;height:18px}
.fact b{display:block;font-size:.82rem;letter-spacing:.06em;color:var(--text-3);font-weight:600;margin-bottom:.15rem}
.fact p{font-size:.95rem;font-weight:600;color:var(--text);line-height:1.6}
.award-right{display:flex;flex-direction:column;gap:var(--space-5)}
.timeline-card{background:var(--ink-950);color:#F4F1E8;border-radius:var(--r-xl);padding:var(--space-8);position:relative;overflow:hidden}
.timeline-card::before{
  content:"";position:absolute;top:-40%;right:-20%;width:60%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(201,169,106,.18),transparent 70%);
}
.timeline-card h3{font-family:var(--font-display);font-size:1.2rem;font-weight:700;margin-bottom:var(--space-4);position:relative}
.tl-row{display:flex;gap:var(--space-5);align-items:flex-start;padding:var(--space-5) 0;border-bottom:1px dashed rgba(201,169,106,.26);position:relative}
.tl-row:last-of-type{border-bottom:none;padding-bottom:0}
.tl-when{
  flex:none;width:104px;font-family:var(--font-display);font-weight:700;font-size:1.02rem;line-height:1.5;
  background:linear-gradient(120deg,#EAD8A8,#C9A96A 60%,#8F6B2C);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.tl-row p{font-size:.86rem;color:rgba(244,241,232,.72);line-height:1.8}
.notice{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);padding:var(--space-6);
}
.notice h4{font-size:.95rem;font-weight:700;margin-bottom:var(--space-4);display:flex;align-items:center;gap:.5rem}
.notice h4 svg{width:17px;height:17px;color:var(--gold-deep)}
.notice ul{list-style:none;display:flex;flex-direction:column;gap:.55rem}
.notice li{font-size:.86rem;color:var(--text-2);padding-left:1.1rem;position:relative;line-height:1.7}
.notice li::before{content:"";position:absolute;left:0;top:.68rem;width:5px;height:5px;border-radius:50%;background:var(--gold)}
.notice p.n-t{font-size:.8rem;color:var(--text-3);margin-top:var(--space-4);line-height:1.75}

/* ============================================================ 荣誉榜单 */
.honors-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-4)}
.honor{
  position:relative;background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:var(--space-6) var(--space-4);text-align:center;overflow:hidden;
  transition:transform .4s var(--ease),box-shadow .4s,border-color .4s;
}
.honor::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(201,169,106,.12),transparent 55%);
  opacity:0;transition:opacity .4s;
}
.honor:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(201,169,106,.5)}
.honor:hover::before{opacity:1}
.honor .medal{width:46px;height:46px;margin:0 auto var(--space-4);color:var(--gold-deep);position:relative}
.honor .medal svg{width:100%;height:100%}
.honor b{display:block;font-family:var(--font-display);font-size:.98rem;font-weight:700;line-height:1.5;position:relative}
.honor span{display:block;margin-top:.45rem;font-size:.72rem;letter-spacing:.1em;color:var(--text-3);position:relative}
.honor.core{border-color:rgba(201,169,106,.5);background:linear-gradient(170deg,#FFFDF7,var(--paper))}
.honor.core::after{
  content:"核心榜单";position:absolute;top:.7rem;right:.7rem;
  font-size:.62rem;letter-spacing:.1em;color:#14100A;font-weight:700;
  background:linear-gradient(135deg,var(--gold-bright),var(--gold-deep));
  padding:.18rem .5rem;border-radius:var(--r-full);
}
.honor-note{margin-top:var(--space-6);text-align:center;font-size:.82rem;color:var(--text-3)}

/* ============================================================ 三大议题 */
.topics-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-6)}
.topic{
  position:relative;border-radius:var(--r-xl);padding:var(--space-8) var(--space-6);
  background:linear-gradient(170deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid rgba(201,169,106,.24);overflow:hidden;
  transition:transform .45s var(--ease),border-color .45s;
}
.topic:hover{transform:translateY(-8px);border-color:rgba(201,169,106,.5)}
.topic .tno{font-family:var(--font-display);font-size:3.4rem;font-weight:700;line-height:1;color:rgba(201,169,106,.24);margin-bottom:var(--space-4)}
.topic h3{font-family:var(--font-display);font-size:1.3rem;font-weight:700;margin-bottom:var(--space-3)}
.topic p{font-size:.88rem;color:rgba(244,241,232,.72);line-height:1.9}
.topic .tq{
  margin-top:var(--space-5);padding-top:var(--space-5);border-top:1px solid rgba(255,255,255,.12);
  font-size:.84rem;color:var(--gold-bright);line-height:1.75;
}

/* ============================================================ 议程 */
.agenda{display:flex;flex-direction:column;gap:0;margin-top:var(--space-8)}
.ag-row{
  display:grid;grid-template-columns:150px 1fr;gap:var(--space-6);align-items:start;
  padding:var(--space-6) 0;border-bottom:1px solid var(--line);
  transition:background .35s,padding-left .35s var(--ease);
}
.ag-row:last-child{border-bottom:none}
.ag-row:hover{background:linear-gradient(90deg,var(--gold-soft),transparent);padding-left:var(--space-4)}
.ag-time{font-family:var(--font-display);font-size:1.05rem;font-weight:700;color:var(--gold-deep);letter-spacing:.02em;padding-top:.1rem}
.ag-time small{display:block;font-family:var(--font-sans);font-size:.72rem;font-weight:400;color:var(--text-3);letter-spacing:.08em;margin-top:.2rem}
.ag-body h4{font-family:var(--font-display);font-size:1.1rem;font-weight:700;margin-bottom:.3rem}
.ag-body p{font-size:.88rem;color:var(--text-2);line-height:1.8}
.ag-row.hl .ag-body h4{color:var(--gold-deep)}

/* ============================================================ 论坛优势 */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-5)}
.adv{
  position:relative;background:linear-gradient(180deg,#FFFDF8,#FFFFFF);
  border:1px solid var(--line);border-top:2px solid rgba(201,169,106,.55);border-radius:var(--r-lg);
  padding:var(--space-7) var(--space-5) var(--space-6);overflow:hidden;
  transition:transform .4s var(--ease),box-shadow .4s,border-color .4s;
}
.adv:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(201,169,106,.5)}
.adv .adv-no{
  position:absolute;top:var(--space-4);right:var(--space-5);user-select:none;
  font-family:var(--font-display);font-size:2.7rem;font-weight:700;line-height:1;
  color:rgba(201,169,106,.15);
}
.adv .ai{
  width:44px;height:44px;border-radius:50%;background:var(--gold-soft);color:var(--gold-deep);
  display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-5);
}
.adv .ai svg{width:20px;height:20px}
.adv h4{font-family:var(--font-display);font-size:1.1rem;font-weight:700;margin-bottom:var(--space-3);position:relative}
.adv h4::after{content:"";display:block;width:26px;height:2px;background:var(--gold);border-radius:2px;margin-top:.55rem}
.adv p{font-size:.86rem;color:var(--text-2);line-height:1.85}
.media-bar{
  margin-top:var(--space-8);background:var(--ink-950);color:#F4F1E8;border-radius:var(--r-xl);
  padding:var(--space-7) var(--space-8);display:grid;grid-template-columns:230px 1fr;
  gap:var(--space-8);align-items:center;position:relative;overflow:hidden;
}
.media-bar::before{
  content:"";position:absolute;top:-45%;left:-8%;width:42%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(201,169,106,.14),transparent 70%);
}
.mb-head{position:relative}
.mb-head h4{font-family:var(--font-display);font-size:1.3rem;font-weight:700;color:var(--gold-bright);margin-bottom:.45rem}
.mb-head h4::after{content:"";display:block;width:30px;height:2px;background:var(--gold);border-radius:2px;margin-top:.6rem}
.mb-head p{font-size:.8rem;color:rgba(244,241,232,.55);line-height:1.75}
.mb-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-4);position:relative}
.mb-stats div{text-align:center;position:relative}
.mb-stats div + div::before{
  content:"";position:absolute;left:calc(-1 * var(--space-2) - 2px);top:12%;height:76%;width:1px;
  background:linear-gradient(180deg,transparent,rgba(201,169,106,.35),transparent);
}
.mb-stats b{
  display:block;font-family:var(--font-display);font-size:1.9rem;font-weight:700;line-height:1;
  background:linear-gradient(120deg,#EAD8A8,#C9A96A 60%,#8F6B2C);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.mb-stats span{display:block;margin-top:.55rem;font-size:.78rem;color:rgba(244,241,232,.6)}

/* ============================================================ 案例定义与企业价值 */
.case-def{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-5);margin-top:var(--space-10)}
.def-col{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-xl);padding:var(--space-7);
}
.def-yes{border-top:2px solid rgba(201,169,106,.55)}
.def-no{background:linear-gradient(180deg,#FDFBF6,var(--paper-2))}
.def-tag{
  display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.12em;color:var(--gold-deep);
  padding:.32rem .95rem;border-radius:var(--r-full);background:var(--gold-soft);margin-bottom:var(--space-5);
}
.def-col ul{list-style:none;display:flex;flex-direction:column;gap:var(--space-4)}
.def-col li{font-size:.9rem;color:var(--text-2);line-height:1.9;padding-left:1.5rem;position:relative}
.def-col li::before{
  content:"";position:absolute;left:0;top:.72rem;width:14px;height:14px;border-radius:50%;
  border:1.5px solid var(--gold);display:flex;align-items:center;justify-content:center;
}
.def-yes li::before{background:radial-gradient(circle,var(--gold) 42%,transparent 46%)}
.def-no li::before{background:var(--paper);border-color:var(--text-3)}
.def-col li b{color:var(--text)}
.case-value{
  margin-top:var(--space-5);background:var(--ink-950);color:#F4F1E8;border-radius:var(--r-xl);
  padding:var(--space-8);position:relative;overflow:hidden;
}
.case-value::before{
  content:"";position:absolute;top:-40%;right:-15%;width:50%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(201,169,106,.16),transparent 70%);
}
.case-value h3{
  font-family:var(--font-display);font-size:clamp(1.25rem,2.2vw,1.6rem);font-weight:700;
  margin-bottom:var(--space-7);position:relative;text-align:center;
}
.cv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-6);position:relative}
.cv{padding-top:var(--space-5);border-top:1px solid rgba(201,169,106,.3)}
.cv .cv-no{
  display:block;font-family:var(--font-display);font-size:1rem;font-weight:700;margin-bottom:var(--space-3);
  background:linear-gradient(120deg,#EAD8A8,#C9A96A 60%,#8F6B2C);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.cv b{display:block;font-size:.98rem;margin-bottom:.4rem;color:var(--gold-bright)}
.cv p{font-size:.84rem;color:rgba(244,241,232,.68);line-height:1.8}

/* ============================================================ 嘉宾 */
.guests{overflow:hidden;position:relative}
.guests::before,.guests::after{
  content:"";position:absolute;top:0;bottom:0;width:120px;z-index:3;pointer-events:none;
}
.guests::before{left:0;background:linear-gradient(90deg,var(--ink-950),transparent)}
.guests::after{right:0;background:linear-gradient(270deg,var(--ink-950),transparent)}
.marquee{display:flex;gap:var(--space-4);width:max-content;animation:marquee 60s linear infinite}
.guests:hover .marquee{animation-play-state:paused}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.guest{
  flex:none;width:250px;background:linear-gradient(170deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid rgba(201,169,106,.2);border-radius:var(--r-lg);padding:var(--space-5);
}
.guest b{display:block;font-family:var(--font-display);font-size:1.05rem;font-weight:700;margin-bottom:.3rem}
.guest span{display:block;font-size:.78rem;color:rgba(244,241,232,.6);line-height:1.65}
.guests-note{margin-top:var(--space-6);text-align:center;font-size:.82rem;color:rgba(244,241,232,.5)}

/* ============================================================ 报名 */
.signup-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:var(--space-10);align-items:start}
.entry-card{background:var(--ink-950);color:#F4F1E8;border-radius:var(--r-xl);padding:var(--space-8);position:relative;overflow:hidden;text-align:center}
.entry-card::before{
  content:"";position:absolute;top:-30%;right:-15%;width:55%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(201,169,106,.16),transparent 70%);
}
.entry-card h3{font-family:var(--font-display);font-size:1.35rem;font-weight:700;margin-bottom:var(--space-6);position:relative}
.entry-qr{
  width:210px;margin:0 auto var(--space-5);padding:.6rem;background:#fff;
  border-radius:var(--r-lg);border:1px solid rgba(201,169,106,.45);position:relative;
  box-shadow:0 0 0 6px rgba(201,169,106,.10);
}
.entry-tip{font-size:.95rem;color:var(--gold-bright);font-weight:600;position:relative;line-height:1.8}
.entry-steps{margin-top:var(--space-6);position:relative;text-align:left}
.entry-steps ol{list-style:none;counter-reset:st;display:flex;flex-direction:column;gap:var(--space-4)}
.entry-steps li{
  counter-increment:st;display:flex;gap:var(--space-4);align-items:flex-start;font-size:.9rem;
  color:rgba(244,241,232,.82);line-height:1.8;
}
.entry-steps li::before{
  content:counter(st);flex:none;width:26px;height:26px;border-radius:50%;
  background:rgba(201,169,106,.16);border:1px solid rgba(201,169,106,.4);color:var(--gold-bright);
  font-size:.78rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:.15rem;
}
.entry-actions{margin-top:var(--space-6);display:flex;gap:var(--space-3);flex-wrap:wrap;justify-content:center;position:relative}
.signup-right{display:flex;flex-direction:column;gap:var(--space-5)}
.declare{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-xl);padding:var(--space-8)}
.declare h3{font-family:var(--font-display);font-size:1.3rem;font-weight:700;margin-bottom:var(--space-4)}
.declare p{font-size:.92rem;color:var(--text-2);line-height:1.95}
.declare-list{list-style:none;margin-top:var(--space-5);display:flex;flex-direction:column;gap:.7rem}
.declare-list li{display:flex;gap:.6rem;font-size:.9rem;color:var(--text-2);line-height:1.75}
.declare-list li svg{flex:none;width:17px;height:17px;color:var(--gold-deep);margin-top:.35rem}
.qr-card{
  background:linear-gradient(170deg,#FFFDF8,var(--paper));border:1px solid var(--line-dark);
  border-radius:var(--r-xl);padding:var(--space-8);text-align:center;
  box-shadow:var(--shadow-md);
}
.qr-card .qr-img{
  width:190px;height:190px;margin:0 auto var(--space-5);padding:.6rem;background:#fff;
  border-radius:var(--r-lg);border:1px solid var(--line);
}
.qr-card h4{font-family:var(--font-display);font-size:1.2rem;font-weight:700;margin-bottom:var(--space-3)}
.qr-card p{font-size:.88rem;color:var(--text-2);line-height:1.85}
.qr-card .qr-name{
  display:inline-block;margin-top:var(--space-4);font-size:.82rem;color:var(--gold-deep);font-weight:600;
  padding:.35rem .9rem;border-radius:var(--r-full);background:var(--gold-soft);
}

/* ============================================================ FAQ */
.faq-list{display:flex;flex-direction:column;gap:var(--space-3)}
.faq-item{background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:border-color .35s,box-shadow .35s}
.faq-item.open{border-color:rgba(201,169,106,.5);box-shadow:var(--shadow-sm)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:var(--space-4);text-align:left;
  padding:var(--space-5) var(--space-6);font-family:var(--font-display);
  font-size:1.02rem;font-weight:700;line-height:1.6;color:var(--text);
}
.faq-q .ind{flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--gold-deep);transition:transform .4s var(--ease),background .3s,border-color .3s;margin-left:auto}
.faq-q .ind svg{width:12px;height:12px}
.faq-item.open .faq-q .ind{transform:rotate(45deg);background:var(--gold-soft);border-color:var(--gold)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .5s var(--ease)}
.faq-a-inner{padding:0 var(--space-6) var(--space-6);font-size:.92rem;color:var(--text-2);line-height:1.95}
.faq-a-inner b{color:var(--text)}

/* ============================================================ 页脚 */
.footer{background:var(--ink-950);color:#F4F1E8;padding:var(--space-16) 0 var(--space-8)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--space-8);margin-bottom:var(--space-10)}
.footer-brand p{margin-top:var(--space-5);font-size:.86rem;color:rgba(244,241,232,.6);line-height:1.9;max-width:320px}
.footer-col h5{font-size:.78rem;letter-spacing:.16em;color:var(--gold);margin-bottom:var(--space-5);font-weight:600}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:.75rem}
.footer-col a{font-size:.88rem;color:rgba(244,241,232,.72);transition:color .3s}
.footer-col a:hover{color:var(--gold-bright)}
.footer-bottom{
  padding-top:var(--space-8);border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;align-items:center;gap:var(--space-4);flex-wrap:wrap;
  font-size:.8rem;color:rgba(244,241,232,.45);
}
.footer-bottom a{color:rgba(244,241,232,.6)}
.footer-bottom a:hover{color:var(--gold-bright)}

/* ============================================================ 浮动 */
.to-top{
  position:fixed;right:1.4rem;bottom:1.6rem;z-index:150;
  width:44px;height:44px;border-radius:50%;
  background:rgba(11,17,32,.86);border:1px solid rgba(201,169,106,.4);color:var(--gold-bright);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transform:translateY(12px);
  transition:opacity .4s,transform .4s var(--ease),background .3s;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.to-top:hover{background:var(--ink-800)}
.to-top svg{width:16px;height:16px}

/* 分享 */
.share-fab{
  position:fixed;right:1.4rem;bottom:6.4rem;z-index:150;
  width:44px;height:44px;border-radius:50%;
  background:rgba(11,17,32,.86);border:1px solid rgba(201,169,106,.4);color:var(--gold-bright);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transform:translateY(12px);
  transition:opacity .4s,transform .4s var(--ease),background .3s;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.share-fab.show{opacity:1;pointer-events:auto;transform:none}
.share-fab:hover{background:var(--ink-800)}
.share-fab svg{width:16px;height:16px}
.share-mask{
  position:fixed;inset:0;z-index:400;display:none;opacity:0;transition:opacity .3s var(--ease);
  background:rgba(4,8,16,.84);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);padding:1.4rem;
}
.share-mask.show{display:block;opacity:1}
.share-mask .arrow{position:absolute;top:.7rem;right:4.6rem;color:var(--gold-bright);width:52px;height:52px}
.share-guide{margin-top:5.2rem;text-align:right;color:#F4F1E8}
.share-guide h3{font-family:var(--font-display);font-size:1.35rem;font-weight:700;margin-bottom:.7rem}
.share-guide p{font-size:.92rem;line-height:2;color:rgba(244,241,232,.78)}
.share-guide .close{
  margin-top:1.7rem;display:inline-block;border:1px solid rgba(201,169,106,.5);border-radius:var(--r-full);
  padding:.55rem 1.5rem;font-size:.86rem;color:var(--gold-bright);cursor:pointer;
}
.toast{
  position:fixed;left:50%;bottom:6.6rem;transform:translateX(-50%) translateY(10px);z-index:500;
  background:rgba(11,17,32,.95);border:1px solid rgba(201,169,106,.4);color:#F4F1E8;
  padding:.65rem 1.25rem;border-radius:var(--r-full);font-size:.85rem;
  opacity:0;pointer-events:none;transition:opacity .3s,transform .3s var(--ease);
  max-width:88vw;text-align:center;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.wx-share-fallback{position:absolute;left:0;top:0;width:1px;height:1px;opacity:0;pointer-events:none;z-index:-1;overflow:hidden}

/* ============================================================ 响应式：平板 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:var(--space-8)}
  .hero-art{max-width:400px;margin-inline:auto;order:-1}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:var(--space-8) var(--space-6)}
  .stat-item:nth-child(3)::before{display:none}
  .chain-flow{grid-template-columns:repeat(2,1fr);gap:var(--space-8) var(--space-4)}
  .chain-arrow{display:none}
  .case-def{grid-template-columns:1fr}
  .cv-grid{grid-template-columns:repeat(2,1fr)}
  .lib-grid{grid-template-columns:1fr;gap:var(--space-5)}
  .award-wrap{grid-template-columns:1fr;gap:var(--space-8)}
  .honors-grid{grid-template-columns:repeat(3,1fr)}
  .topics-grid{grid-template-columns:1fr;gap:var(--space-5)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .media-bar{grid-template-columns:1fr;gap:var(--space-7)}
  .mb-stats{gap:var(--space-6)}
  .signup-grid{grid-template-columns:1fr;gap:var(--space-6)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--space-8) var(--space-6)}
}

/* ============================================================ 响应式：手机 */
@media (max-width:640px){
  body{font-size:15px}
  .nav-links,.nav .nav-cta{display:none}
  .burger{display:flex}
  .section{padding:3.6rem 0}
  .hero{padding:6.5rem 0 5.5rem;min-height:auto}
  .hero-scroll{display:none}
  .hero-art{display:none}
  .hero h1{font-size:clamp(2rem,9.2vw,2.6rem)}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .hero-count{gap:var(--space-6);justify-content:center}
  .cd-item{align-items:center}
  .cd-item b{font-size:1.7rem}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:var(--space-6) var(--space-4)}
  .stat-item + .stat-item::before{display:none}
  .chain-flow{grid-template-columns:1fr;gap:var(--space-6)}
  .honors-grid{grid-template-columns:repeat(2,1fr);gap:var(--space-3)}
  .adv-grid{grid-template-columns:1fr}
  .media-bar{padding:var(--space-6)}
  .mb-stats{grid-template-columns:repeat(2,1fr);gap:var(--space-6)}
  .mb-stats div:nth-child(3)::before{display:none}
  .ag-row{grid-template-columns:1fr;gap:var(--space-3)}
  .ag-time{padding-top:0}
  .award-facts{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:var(--space-6)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .entry-card,.timeline-card,.case-value,.declare,.qr-card,.notice{padding:var(--space-6)}
  .to-top{right:1rem;bottom:1.1rem}
  .share-fab{right:1rem;bottom:5.6rem}
  .toast{bottom:7.4rem}
}

/* 动效降级 */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .marquee{animation:none}
}