/* ==========================================================================
   CASEC — 中国—东盟特殊教育学术交流大会  官方网站
   Design system v1.0 · International Conference Series
   ========================================================================== */

/* -------- 1. Tokens -------- */
:root{
  --c-navy-900:#0A2A4A;
  --c-navy-800:#0E3A66;
  --c-navy-700:#12497E;
  --c-ocean-600:#1573A0;
  --c-ocean-500:#1B8AB8;
  --c-aqua-400:#25A5A5;
  --c-aqua-300:#82D3C9;
  --c-gold-500:#B98B2E;
  --c-gold-400:#D8B25B;
  --c-ink:#0C1F33;
  --c-body:#35485A;
  --c-muted:#6E8291;
  --c-line:#E2EAEF;
  --c-line-soft:#EEF4F7;
  --c-bg:#FFFFFF;
  --c-bg-soft:#F4F8F9;
  --c-bg-tint:#E9F3F2;

  --grad-hero:linear-gradient(160deg,#55BB7D 0%,#2AA48F 30%,#1E93A8 55%,#1C6FB2 80%,#15599E 100%);
  --grad-band:linear-gradient(135deg,#0E3A66 0%,#1573A0 55%,#25A5A5 100%);
  --grad-accent:linear-gradient(90deg,#2AA48F 0%,#1C6FB2 100%);
  --grad-gold:linear-gradient(90deg,#B98B2E 0%,#D8B25B 100%);

  --shadow-s:0 1px 2px rgba(10,42,74,.06),0 2px 8px rgba(10,42,74,.05);
  --shadow-m:0 6px 24px rgba(10,42,74,.09);
  --shadow-l:0 18px 48px rgba(10,42,74,.14);

  --r-s:6px; --r-m:10px; --r-l:16px; --r-xl:24px;
  --wrap:1200px;
  --nav-h:74px;

  --f-sans:"Inter","Segoe UI",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,
           "PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC",
           "Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --f-num:"Inter","SF Mono","Segoe UI",Arial,sans-serif;
}

/* -------- 2. Reset / Base -------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--c-bg);color:var(--c-body);
  font-family:var(--f-sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:700;line-height:1.22;letter-spacing:-.01em}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
hr{border:0;border-top:1px solid var(--c-line);margin:0}
::selection{background:var(--c-aqua-300);color:var(--c-navy-900)}
:focus-visible{outline:3px solid var(--c-aqua-400);outline-offset:2px;border-radius:3px}

/* -------- 3. Layout helpers -------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 28px}
.wrap-narrow{max-width:860px}
.sec{padding:58px 0}
.sec-sm{padding:40px 0}
.sec-soft{background:var(--c-bg-soft)}
.sec-tint{background:linear-gradient(180deg,#F6FAF9 0%,#EAF4F2 100%)}
.sec-dark{background:var(--grad-band);color:#D6E4EA}
.sec-dark h2,.sec-dark h3,.sec-dark h4{color:#fff}
.grid{display:grid;gap:20px}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.g-2-1{grid-template-columns:2fr 1fr}
.g-1-2{grid-template-columns:1fr 2fr}
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.center{text-align:center}
.mt-0{margin-top:0}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}
.mt-32{margin-top:32px}.mt-40{margin-top:40px}.mt-56{margin-top:56px}
.hide{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* -------- 4. Typography atoms -------- */
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  color:var(--c-ocean-600);margin-bottom:16px;
}
.kicker::before{content:"";width:26px;height:2px;background:var(--grad-accent);border-radius:2px}
.kicker.on-dark{color:var(--c-aqua-300)}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-head.center{margin-left:auto;margin-right:auto}
.sec-head h2{font-size:clamp(26px,3.2vw,38px);letter-spacing:-.02em}
.sec-head .en{
  display:block;margin-top:10px;font-size:13px;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--c-muted);
}
.sec-head .lead{margin-top:18px;font-size:16.5px;color:var(--c-body)}
.sec-dark .sec-head .en{color:var(--c-aqua-300)}
.sec-dark .sec-head .lead{color:#C3D6DE}
.eyebrow-en{display:block;font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--c-muted);margin-bottom:8px}
.rule-gold{width:56px;height:3px;border-radius:2px;background:var(--grad-gold);margin:22px 0 0}
.rule-gold.center{margin-left:auto;margin-right:auto}
.lead-lg{font-size:18px;line-height:1.8;color:var(--c-body)}

/* -------- 5. Buttons & chips -------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:999px;font-size:14.5px;font-weight:600;letter-spacing:.02em;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background:var(--grad-accent);color:#fff;box-shadow:0 8px 22px rgba(28,111,178,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(28,111,178,.42)}
.btn-gold{background:var(--grad-gold);color:#2A1F05;box-shadow:0 8px 22px rgba(185,139,46,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(185,139,46,.4)}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-line{border-color:var(--c-line);color:var(--c-navy-800);background:#fff}
.btn-line:hover{border-color:var(--c-ocean-500);color:var(--c-ocean-600);box-shadow:var(--shadow-s)}
.btn-sm{padding:10px 18px;font-size:13.5px}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

.chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 15px;border-radius:999px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.24);color:#EAF4F7;
  backdrop-filter:blur(6px);
}
.chip svg{width:15px;height:15px;flex:0 0 auto}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-block;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--c-bg-tint);color:var(--c-ocean-600);letter-spacing:.04em;
}
.tag-gold{background:#FBF3DF;color:#8A6516}
.tag-live{background:#FDECEC;color:#C0392B}

/* -------- 6. Header / Nav -------- */
/* 上排：会议名称（+ 届次信息 / 语言切换 / 注册按钮）；下排：完整导航栏 */
.masthead{max-height:150px;overflow:hidden;transition:max-height .3s ease,opacity .22s ease}
.masthead .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:92px}
.masthead .brand-mark{width:54px;height:54px}
.masthead .brand-zh{font-size:clamp(19px,1.7vw,23px);line-height:1.25;white-space:nowrap}
.masthead .brand-en{margin-top:4px}
.mast-meta{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.mast-info{font-size:12.5px;letter-spacing:.03em;color:var(--c-muted);white-space:nowrap}
.lang-switch{display:inline-flex;border:1px solid rgba(255,255,255,.22);border-radius:999px;overflow:hidden}
.lang-switch button{padding:3px 12px;font-size:12px;font-weight:600;letter-spacing:.08em;color:#9FB6C0}
.lang-switch button[aria-pressed="true"]{background:var(--c-aqua-400);color:var(--c-navy-900)}
.lang-switch.on-light{border-color:var(--c-line);background:var(--c-bg-soft)}
.lang-switch.on-light button{color:var(--c-muted)}
.lang-switch.on-light button[aria-pressed="true"]{background:var(--c-ocean-600);color:#fff}

.header{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.96);
  backdrop-filter:blur(14px);transition:box-shadow .25s ease;
}
.header.is-stuck{box-shadow:0 6px 26px rgba(10,42,74,.09)}
.navbar{background:#fff;border-top:1px solid var(--c-line-soft);border-bottom:1px solid var(--c-line-soft)}
.navbar .wrap{display:flex;justify-content:center}

.brand{display:flex;align-items:center;gap:13px;flex:0 0 auto}
.brand-mark{width:46px;height:46px;flex:0 0 auto}
.brand-txt{display:flex;flex-direction:column;line-height:1.15}
.brand-zh{font-size:15.5px;font-weight:700;color:var(--c-ink);letter-spacing:.01em}
.brand-en{font-size:9.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--c-muted);margin-top:3px}

.nav{display:flex;align-items:center;justify-content:center;gap:1px}
.nav>li{position:relative}
.nav>li>a{
  position:relative;display:block;padding:16px 13px;font-size:14.5px;font-weight:600;
  color:var(--c-navy-800);transition:color .16s;
}
.nav>li>a:hover{color:var(--c-ocean-600)}
.nav>li>a.active{color:var(--c-ocean-600)}
.nav>li>a.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:0;height:2.5px;
  border-radius:2px;background:var(--grad-accent);
}
.burger{display:none;width:44px;height:44px;border-radius:8px;align-items:center;justify-content:center}
.burger span{display:block;width:20px;height:2px;background:var(--c-navy-800);position:relative;border-radius:2px}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--c-navy-800);border-radius:2px}
.burger span::before{top:-6px}.burger span::after{top:6px}
.drawer{
  position:fixed;inset:0 0 0 auto;width:min(88vw,360px);background:#fff;z-index:120;
  transform:translateX(100%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px;overflow-y:auto;box-shadow:var(--shadow-l);
}
.drawer.open{transform:none}
.drawer a{padding:13px 8px;border-bottom:1px solid var(--c-line-soft);font-size:16px;font-weight:600;color:var(--c-navy-800)}
.drawer .d-sub a{padding-left:22px;font-size:14.5px;font-weight:500;color:var(--c-body)}
.scrim{position:fixed;inset:0;background:rgba(4,32,46,.5);z-index:110;opacity:0;visibility:hidden;transition:.25s}
.scrim.open{opacity:1;visibility:visible}

/* -------- 7. Hero -------- */
.hero{
  position:relative;overflow:hidden;color:#fff;background:var(--grad-hero);
  padding:56px 0 66px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.11) 1px,transparent 1px);
  background-size:24px 24px;opacity:.5;
}
.hero::after{
  content:"";position:absolute;right:-180px;top:-140px;width:660px;height:660px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,189,192,.32) 0%,rgba(57,189,192,0) 62%);
}
.hero .wrap{position:relative;z-index:2}
.hero-inner{max-width:800px}
.hero h1{
  color:#fff;font-size:clamp(26px,3.6vw,44px);line-height:1.2;letter-spacing:-.01em;margin:14px 0 0;
  white-space:nowrap;
}
@media (max-width:640px){.hero h1{white-space:normal;font-size:clamp(24px,6.4vw,30px)}}
.hero h1 .l2{
  display:block;margin-top:12px;font-size:clamp(14px,1.55vw,19px);font-weight:600;
  letter-spacing:.1em;text-transform:uppercase;color:var(--c-aqua-300);line-height:1.5;
}
.hero-theme{
  margin-top:20px;padding-left:18px;border-left:3px solid var(--c-gold-400);
  font-size:clamp(17px,2vw,23px);font-weight:600;color:#fff;
}
.hero-theme small{display:block;margin-top:6px;font-size:13px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:#A9C4CF}
.hero .chip-row{margin-top:22px}
.hero .btn-row{margin-top:26px}
.hero-note{margin-top:16px;font-size:13px;color:#9FBDC9}
.hero-panel{
  position:absolute;right:0;bottom:0;z-index:3;width:min(330px,34vw);
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.2);
  border-radius:var(--r-l);padding:22px;backdrop-filter:blur(14px);
}
.hero-panel h4{color:#fff;font-size:13px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;margin-bottom:14px}
.cd{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center}
.cd b{display:block;font-size:26px;font-weight:700;color:#fff;font-family:var(--f-num);letter-spacing:-.02em}
.cd span{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:#A9C4CF}

/* -------- 8. Cards -------- */
.card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);padding:26px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:var(--c-aqua-300)}
.card-ico{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:20px;
  background:var(--c-bg-tint);color:var(--c-ocean-600);
}
.card-ico svg{width:23px;height:23px}
.card-ico.gold{background:#FBF3DF;color:var(--c-gold-500)}
.card h3{font-size:19px;margin-bottom:10px}
.card .en-sub{display:block;font-size:11px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--c-muted);margin:-4px 0 12px}
.card p{font-size:14.8px;color:var(--c-body)}
.card-num{
  font-family:var(--f-num);font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--c-aqua-400);margin-bottom:14px;
}
.card.flush{padding:0;overflow:hidden}
.card.flush .card-body{padding:26px}
.ph{
  position:relative;aspect-ratio:16/10;background:
    linear-gradient(135deg,#2AA48F 0%,#1E93A8 55%,#1C6FB2 100%);
  display:grid;place-items:center;color:rgba(255,255,255,.72);overflow:hidden;
}
.ph::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);background-size:18px 18px}
.ph span{position:relative;font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase}
.ph.tall{aspect-ratio:4/5}
.ph.wide{aspect-ratio:21/9}
.ph.alt{background:linear-gradient(135deg,#0E3A66 0%,#1573A0 55%,#25A5A5 100%)}
.ph.gold{background:linear-gradient(135deg,#6B4E12 0%,#B98B2E 60%,#D8B25B 100%)}

/* -------- 9. Lists -------- */
.news-list{display:grid;gap:0}
.news-item{
  display:grid;grid-template-columns:104px 1fr auto;gap:26px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--c-line);
}
.news-item:first-child{padding-top:0}
.news-date{display:flex;flex-direction:column;line-height:1}
.news-date b{font-family:var(--f-num);font-size:30px;font-weight:700;color:var(--c-ocean-600)}
.news-date span{font-size:11.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--c-muted);margin-top:6px}
.news-item h3{font-size:17.5px;margin-bottom:8px;transition:color .16s}
.news-item:hover h3{color:var(--c-ocean-600)}
.news-item p{font-size:14.5px;margin:0}
.news-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:10px}
.news-arrow{align-self:center;color:var(--c-aqua-400);transition:transform .18s}
.news-item:hover .news-arrow{transform:translateX(5px)}
.check-list{display:grid;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px}
.check-list li::before{
  content:"";flex:0 0 auto;width:20px;height:20px;margin-top:5px;border-radius:50%;
  background:var(--c-bg-tint) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230E6E88' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/12px no-repeat;
}
.dot-list{display:grid;gap:10px}
.dot-list li{position:relative;padding-left:18px;font-size:15px}
.dot-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--c-aqua-400)}
.sec-dark .dot-list li::before{background:var(--c-gold-400)}

/* -------- 10. Timeline -------- */
.timeline{position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;background:var(--c-line)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-29px;top:5px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--c-aqua-400);box-shadow:0 0 0 4px #fff;
}
.tl-item.done::before{background:var(--c-ocean-500);border-color:var(--c-ocean-500)}
.tl-item.next::before{border-color:var(--c-gold-400);background:var(--c-gold-400)}
.tl-year{font-family:var(--f-num);font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--c-ocean-600)}
.tl-item h3{font-size:17.5px;margin:8px 0 8px}
.tl-item p{font-size:14.6px;margin:0}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}

/* -------- 11. People -------- */
.person{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);overflow:hidden;height:100%;transition:.22s;display:flex;flex-direction:column}
.person:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:var(--c-aqua-300)}
.person .ph{aspect-ratio:1/1}
.person-body{padding:22px}
.person h3{font-size:17px;margin-bottom:4px}
.person .role{font-size:13px;font-weight:600;color:var(--c-ocean-600)}
.person .org{font-size:13px;color:var(--c-muted);margin-top:6px}
.person .topic{font-size:13.5px;margin-top:12px;padding-top:12px;border-top:1px solid var(--c-line-soft)}
.monogram{font-family:var(--f-num);font-size:34px;font-weight:700;color:rgba(255,255,255,.9);letter-spacing:.04em}

/* -------- 12. Tables -------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--c-line);border-radius:var(--r-m);background:#fff}
.tbl{width:100%;border-collapse:collapse;min-width:640px}
.tbl th{
  background:var(--c-bg-soft);text-align:left;font-size:12.5px;font-weight:700;
  letter-spacing:.09em;text-transform:uppercase;color:var(--c-navy-800);
  padding:15px 18px;border-bottom:1px solid var(--c-line);white-space:nowrap;
}
.tbl td{padding:15px 18px;border-bottom:1px solid var(--c-line-soft);font-size:14.8px;vertical-align:top}
.tbl tr:last-child td{border-bottom:0}
.tbl tbody tr:hover{background:#FAFCFD}
.tbl .strong{font-weight:700;color:var(--c-ink)}
.tbl .num{font-family:var(--f-num);font-weight:600;white-space:nowrap}

/* -------- 13. Program / accordion / tabs -------- */
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.tabs button{
  padding:10px 20px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  font-size:14px;font-weight:600;color:var(--c-body);transition:.18s;
}
.tabs button[aria-selected="true"]{background:var(--c-navy-800);border-color:var(--c-navy-800);color:#fff}
.acc-item{border:1px solid var(--c-line);border-radius:var(--r-m);background:#fff;margin-bottom:12px;overflow:hidden}
.acc-item summary{
  list-style:none;cursor:pointer;padding:19px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.acc-item summary::-webkit-details-marker{display:none}
.acc-item summary::after{content:"+";font-size:20px;color:var(--c-ocean-600);font-weight:400;line-height:1}
.acc-item[open] summary::after{content:"–"}
.acc-item .acc-body{padding:0 22px 20px;font-size:15px;color:var(--c-body)}

/* -------- 14. Forms -------- */
.form-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);padding:36px;box-shadow:var(--shadow-s)}
.field{margin-bottom:20px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--c-navy-800);margin-bottom:8px}
.field label .req{color:#C0392B;margin-left:3px}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid var(--c-line);border-radius:var(--r-s);
  font:inherit;font-size:15px;color:var(--c-ink);background:#fff;transition:.16s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-ocean-500);box-shadow:0 0 0 3px rgba(18,141,166,.14);outline:none;
}
.field .hint{font-size:12.5px;color:var(--c-muted);margin-top:6px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.radio-row{display:flex;flex-wrap:wrap;gap:12px}
.radio-row label{
  display:inline-flex;align-items:center;gap:8px;padding:11px 16px;border:1px solid var(--c-line);
  border-radius:var(--r-s);font-size:14.5px;font-weight:500;cursor:pointer;margin:0;
}
.radio-row input{width:auto}
.consent{display:flex;gap:11px;align-items:flex-start;font-size:13.5px;color:var(--c-body)}
.consent input{width:auto;margin-top:4px;flex:0 0 auto}

/* -------- 15. CTA band -------- */
.cta{
  position:relative;overflow:hidden;background:var(--grad-band);color:#D6E4EA;
  border-radius:var(--r-xl);padding:52px 56px;
}
.cta::after{
  content:"";position:absolute;right:-90px;top:-90px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,189,192,.3),transparent 65%);
}
.cta .cta-in{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta h2{color:#fff;font-size:clamp(22px,2.6vw,31px);margin-bottom:12px}
.cta p{color:#BCD3DC;margin:0;max-width:620px}

/* -------- 16. Page hero -------- */
.phero{
  position:relative;overflow:hidden;background:var(--grad-band);color:#fff;padding:48px 0 44px;
}
.phero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.1) 1px,transparent 1px);background-size:22px 22px;opacity:.45;
}
.phero::after{
  content:"";position:absolute;right:-140px;bottom:-180px;width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,189,192,.26),transparent 64%);
}
.phero .wrap{position:relative;z-index:2}
.phero h1{color:#fff;font-size:clamp(27px,3.6vw,42px);letter-spacing:-.02em}
.phero .en{display:block;margin-top:12px;font-size:12.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--c-aqua-300)}
.crumbs{display:flex;gap:9px;align-items:center;font-size:12.5px;color:#9FBDC9;margin-bottom:18px;letter-spacing:.03em;flex-wrap:wrap}
.crumbs a:hover{color:#fff}
.crumbs .sep{opacity:.5}

/* -------- 17. Footer -------- */
.footer{background:var(--c-navy-900);color:#93AEB9;padding:52px 0 0;font-size:14px}
.footer a{color:#93AEB9}
.footer a:hover{color:#fff}
.footer h4{color:#fff;font-size:13px;letter-spacing:.14em;text-transform:uppercase;margin-bottom:18px}
.f-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:38px}
.f-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.f-brand .brand-zh{color:#fff}
.f-brand .brand-en{color:#7F9BA7}
.footer .dot-list li{padding-left:16px;font-size:13.6px;margin-bottom:9px}
.footer .dot-list li::before{background:var(--c-aqua-400);width:5px;height:5px;top:10px}
.f-org{font-size:13.4px;line-height:1.9}
.f-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;align-items:center;
  justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:12.8px;color:#7F9BA7;
}
.f-bottom .fb-links{display:flex;gap:20px;flex-wrap:wrap}
.f-bottom .foot-icp{white-space:nowrap}
.f-bottom .foot-icp a{color:inherit;text-decoration:none}
.f-bottom .foot-icp a:hover{color:#C8DEE6;text-decoration:underline}

/* -------- 18. Motion -------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

.to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;width:46px;height:46px;border-radius:50%;
  background:var(--c-navy-800);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow-m);
  opacity:0;visibility:hidden;transition:.25s;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--c-ocean-600)}

/* -------- 19. Responsive -------- */
@media (max-width:1080px){
  .navbar{display:none}
  .burger{display:flex}
  .masthead .wrap{min-height:72px}
  .hero-panel{position:static;width:auto;margin:36px 28px 0}
  .f-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:820px){
  .wrap{padding:0 20px}
  .sec{padding:42px 0}
  .split{grid-template-columns:1fr;gap:28px}
  .g-2,.g-3,.g-4,.g-2-1,.g-1-2{grid-template-columns:1fr}
  .sec-head{margin-bottom:26px}
  .news-item{grid-template-columns:74px 1fr;gap:18px}
  .news-arrow{display:none}
  .cta{padding:36px 28px}
  .form-card{padding:26px 22px}
  .field-row{grid-template-columns:1fr}
  .mast-info{display:none}
  .masthead .brand-zh{font-size:17px}
  .mast-meta{gap:10px}
}
@media (max-width:520px){
  .f-grid{grid-template-columns:1fr}
  .cd b{font-size:22px}
}

/* -------- 20. Print -------- */
@media print{
  .header,.navbar,.to-top,.drawer,.scrim,.cta{display:none!important}
  .hero,.phero{background:#0E3A66!important;-webkit-print-color-adjust:exact}
  body{font-size:12pt}
}

/* -------- 21. 双语切换 -------- */
html[data-lang="zh"] .l-en{display:none!important}
html[data-lang="en"] .l-zh{display:none!important}
html[data-lang="en"] body{font-size:15.5px}

/* -------- 22. 补充组件 -------- */
.note{
  display:flex;gap:11px;align-items:flex-start;padding:15px 19px;border-radius:var(--r-m);
  background:#FBF3DF;border:1px solid #EFE2C0;color:#7A5B12;font-size:13.5px;line-height:1.72;
}
.note::before{
  content:"!";flex:0 0 auto;width:19px;height:19px;border-radius:50%;background:var(--c-gold-400);
  color:#3A2A00;font-weight:700;font-size:12px;display:grid;place-items:center;margin-top:3px;
}
.hint{font-size:12.5px;color:var(--c-muted);margin-top:8px}
.logos{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.logo-ph{
  border:1px dashed #CBD9E0;border-radius:var(--r-m);background:#fff;min-height:84px;
  display:grid;place-items:center;text-align:center;padding:12px 10px;
  font-size:11.5px;font-weight:600;letter-spacing:.05em;color:var(--c-muted);line-height:1.6;
}
.count-note{font-size:13.5px;color:var(--c-muted)}
@media (max-width:820px){
  .logos{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:520px){
  .logos{grid-template-columns:repeat(2,1fr)}
}

/* -------- 26. 内容矩阵组件（定位 / 单位 / 附件 / 二维码 / 收费标准） -------- */

/* 定位宣言条 */
.stance{
  margin-top:24px;padding:28px 32px;border-radius:var(--r-l);position:relative;overflow:hidden;
  background:var(--grad-band);color:#DCE9EE;font-size:18.5px;line-height:1.85;
}
.stance::after{
  content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(57,189,192,.34),transparent 68%);
}
.stance p{margin:0;position:relative;z-index:2;max-width:960px}
.stance strong{color:#fff;font-weight:700;border-bottom:2px solid var(--c-gold-400);padding-bottom:2px}

/* 分组标题（主办 / 承办 / 协办单位） */
.grp-count{
  margin-left:auto;font-family:var(--f-num);font-size:12.5px;font-weight:700;color:var(--c-ocean-600);
  background:var(--c-bg-tint);border-radius:999px;padding:4px 13px;
}

/* 单位卡（LOGO 占位 + 简介） */
.unit-logo{
  flex:0 0 96px;width:96px;height:96px;border:1px dashed #CBD9E0;border-radius:var(--r-m);
  background:var(--c-bg-soft);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  color:var(--c-muted);font-weight:700;letter-spacing:.16em;
}
.unit-logo span{font-size:12px;letter-spacing:.2em}
.unit-logo i{
  font-style:normal;font-size:10px;letter-spacing:.02em;font-weight:600;line-height:1.3;
  text-align:center;padding:0 6px;
}
.unit-note{font-size:12.5px;color:var(--c-muted);margin-top:8px}

/* 附件 / 文件下载列表 */
.dl-list{display:grid;gap:10px;margin-top:6px}
.dl-item{
  display:flex;align-items:center;gap:13px;padding:13px 15px;border:1px solid var(--c-line);
  border-radius:var(--r-m);background:#fff;transition:.18s;
}
.dl-item:hover{border-color:var(--c-aqua-300);box-shadow:var(--shadow-s)}
.dl-ico{
  flex:0 0 44px;width:44px;height:44px;border-radius:9px;background:var(--c-bg-tint);color:var(--c-ocean-600);
  display:grid;place-items:center;font-family:var(--f-num);font-size:11px;font-weight:800;letter-spacing:.03em;
}
.dl-tt{min-width:0;flex:1}
.dl-tt b{display:block;font-size:14px;color:var(--c-ink);font-weight:600;line-height:1.5}
.dl-tt i{display:block;font-style:normal;font-size:12px;color:var(--c-muted);margin-top:3px}
.dl-go{flex:none;font-size:12.5px;font-weight:700;color:var(--c-aqua-400);white-space:nowrap}
.dl-empty{
  font-size:13px;color:var(--c-muted);background:var(--c-bg-soft);border:1px dashed var(--c-line);
  border-radius:var(--r-m);padding:14px 16px;line-height:1.7;
}

/* 往期盛况四模块 */
.ed-mods{margin-top:22px;gap:18px!important}
.mod{border:1px solid var(--c-line);border-radius:var(--r-l);background:#fff;padding:20px}
.mod-head{
  display:flex;align-items:baseline;gap:10px;border-bottom:1px solid var(--c-line-soft);
  padding-bottom:11px;margin-bottom:14px;
}
.mod-head b{font-size:15px;color:var(--c-navy-800)}
.mod-head i{font-style:normal;font-size:10.5px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--c-muted)}
.mod .dl-list{margin-top:0}
.mod .ed-guests{margin-top:0}
.ed-facts--row{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px}
.ed-facts--row li{flex:1 1 280px;border-bottom:0;background:var(--c-bg-soft);border-radius:var(--r-m);padding:12px 16px}

/* 二维码矩阵 */
.qr{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);padding:26px 22px;
  text-align:center;transition:.22s;height:100%;
}
.qr:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:var(--c-aqua-300)}
.qr-box{
  width:132px;height:132px;margin:0 auto 18px;border:1px dashed #CBD9E0;border-radius:var(--r-m);
  background:var(--c-bg-soft);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  color:var(--c-muted);font-size:10.5px;font-weight:700;letter-spacing:.1em;
}
.qr-box svg{width:38px;height:38px;color:var(--c-aqua-400)}
.qr h3{font-size:16.5px}
.qr .en-sub{margin:8px 0 10px}
.qr p{font-size:13.4px}

/* 收费标准三档 */
.fee-price{
  font-family:var(--f-num);font-size:26px;font-weight:800;color:var(--c-ocean-600);
  letter-spacing:-.02em;margin:6px 0 16px;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;
}
.fee-price i{
  font-style:normal;font-family:var(--f-sans);font-size:11.5px;font-weight:600;
  color:var(--c-muted);letter-spacing:.02em;
}
.fee-price.gold{color:var(--c-gold-500)}
.fee-row{border-top:1px solid var(--c-line-soft);padding-top:14px;margin-top:14px}
.fee-row>b{display:block;font-size:12.5px;letter-spacing:.06em;color:var(--c-navy-800);margin-bottom:10px}
.fee-row p{font-size:13.6px;margin:0}
.fee-row .dot-list li,.fee-row .check-list li{font-size:13.6px}
.fee-row .check-list{gap:10px}

@media (max-width:820px){
  .stance{padding:26px 22px;font-size:16.5px}
  .unit{flex-direction:column}
  .unit-logo{width:100%;height:78px;flex:0 0 auto}
  .grp-head h3{font-size:17px}
  .grp-count{margin-left:0}
  .ed-facts--row li{flex:1 1 100%}
}


/* -------- 21. Past editions -------- */
.ed-quick{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}
.ed-quick a{font-size:13.5px;padding:8px 18px;border:1px solid var(--c-line);border-radius:999px;color:var(--c-body);background:#fff;transition:.2s}
.ed-quick a:hover{border-color:var(--c-aqua-400);color:var(--c-ocean-600)}
.ed-card{display:flex;flex-direction:column}
.ed-card .card-body{display:flex;flex-direction:column;height:100%}
.ed-card h3{display:flex;align-items:center;gap:8px;font-size:14.5px;margin:0 0 10px;color:var(--c-navy-800)}
.ed-card h3 .ico{width:26px;height:26px;flex:none;border-radius:8px;background:var(--c-navy-800);color:#fff;display:flex;align-items:center;justify-content:center}
.ed-card h3 .ico svg{width:14px;height:14px}
.ed-card p{font-size:13.5px;color:var(--c-body);line-height:1.8;margin:0}
.ed-card ul{list-style:none;margin:0;padding:0}
.ed-card li{font-size:13.5px;color:var(--c-body);line-height:1.65;padding:6px 0;border-bottom:1px dashed var(--c-line)}
.ed-card li:last-child{border-bottom:0;padding-bottom:0}
.ed-card li b{color:var(--c-ink);font-weight:600}
.ed-card .mt-auto{margin-top:auto;padding-top:12px}
.ed-tags{display:flex;flex-wrap:wrap;gap:8px}
.ed-meta{font-size:12.5px;color:var(--c-muted);margin-top:10px}
.ed-theme{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;margin-top:14px}

/* -------- 22. Homepage editions switcher -------- */
.ed-facts{list-style:none;margin:16px 0 0;padding:0}
.ed-facts li{display:flex;gap:12px;align-items:flex-start;padding:8px 0;border-bottom:1px dashed var(--c-line);font-size:13.5px;color:var(--c-body);line-height:1.7}
.ed-facts li:last-child{border-bottom:0}
.ed-facts li b{flex:none;color:#fff;background:var(--c-navy-800);border-radius:6px;font-size:12px;font-weight:600;padding:2px 10px;margin-top:2px}
.ed-hl{font-size:13.5px;color:var(--c-muted);line-height:1.85;margin:14px 0 0}
.note-inline{font-size:13px;color:var(--c-muted)}

/* -------- 23. Edition articles -------- */
.ed-sub{font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--c-ocean-600);margin:18px 0 2px;text-transform:uppercase}
.ed-arts,.ed-guests{list-style:none;margin:0;padding:0}
.ed-arts li,.ed-guests li{padding:8px 0;border-bottom:1px dashed var(--c-line)}
.ed-arts li:last-child,.ed-guests li:last-child{border-bottom:0}
.ed-arts a{font-size:13.5px;color:var(--c-ink);font-weight:600;text-decoration:none;line-height:1.6}
.ed-arts a:hover{color:var(--c-ocean-600)}
.ed-art-link{font-size:13.5px;color:var(--c-ink);font-weight:600;text-decoration:none;line-height:1.6}
.ed-art-link:hover{color:var(--c-ocean-600)}
.ed-guests b{color:var(--c-ink);font-size:13.5px}
.ed-arts span,.ed-guests span{display:block;font-size:12.5px;color:var(--c-muted);margin-top:3px;line-height:1.65}
.ed-guests em{color:var(--c-body);font-style:normal}
.ed-empty{color:var(--c-muted)!important;font-size:13px!important}
.ed-role{font-size:13px;color:var(--c-muted);line-height:1.6}

/* -------- 27. 页头导航栏 · 机构目录 · 首页简介与列表 -------- */

/* 首页主视觉（原 facts 数据条已并入「大会简介」板块） */
.hero{padding:52px 0 62px}

/* 首页「大会简介」统计块 */
.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:16px}
.stat{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:20px 22px;display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;
}
.stat b{font-family:var(--f-num);font-size:30px;font-weight:700;color:var(--c-ocean-600);letter-spacing:-.02em;line-height:1}
.stat b em{font-style:normal;font-size:.52em;font-weight:700;color:var(--c-muted);margin-left:3px}
.stat span{font-size:13.5px;font-weight:600;color:var(--c-navy-800)}

/* 列表条目里的姓氏缩写与身份 */
.news-date .ini{font-size:19px;letter-spacing:0}
.news-item .role{font-style:normal;font-weight:600;color:var(--c-ocean-600);margin-right:6px}

/* 组织机构目录：左侧名称列表 + 右侧机构简介 */
.org-dir{display:grid;grid-template-columns:352px 1fr;gap:34px;align-items:start}
.org-list{display:grid;gap:26px;position:sticky;top:96px}
.org-grp-head{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;padding-bottom:10px;border-bottom:2px solid var(--c-line)}
.org-grp-head b{font-size:16px;color:var(--c-ink)}
.org-grp-head .en{font-size:10.5px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--c-muted)}
.org-names{margin-top:10px;display:grid;gap:6px}
.org-name{
  display:flex;justify-content:space-between;align-items:baseline;gap:10px;
  padding:12px 14px;border-radius:var(--r-m);border:1px solid transparent;
  background:var(--c-bg-soft);font-size:14.5px;font-weight:600;color:var(--c-navy-800);
  transition:background .16s,color .16s,border-color .16s;
}
.org-name em{font-style:normal;font-size:10px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--c-muted);flex:0 0 auto}
.org-name:hover{background:var(--c-bg-tint);color:var(--c-ocean-600)}
.org-name.active{background:var(--c-navy-800);color:#fff;border-color:var(--c-navy-800)}
.org-name.active em{color:var(--c-aqua-300)}
.org-panel{min-width:0}
.org-detail{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);padding:30px}
.org-detail + .org-detail{margin-top:18px}
.org-dir[data-ready] .org-detail{display:none}
.org-dir[data-ready] .org-detail.is-on{display:block;animation:orgIn .3s ease}
@keyframes orgIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.org-detail-head{display:flex;gap:22px;align-items:center;margin-bottom:18px}
.org-detail-head .unit-logo{flex:0 0 110px;width:110px;height:110px}
.org-detail-tt{min-width:0}
.org-detail-tt h3{font-size:19px;margin:10px 0 4px}
.org-detail-tt .en-sub{margin:0}
.org-detail p{font-size:15px;color:var(--c-body)}

@media (max-width:1080px){
  .org-dir{grid-template-columns:1fr;gap:24px}
  .org-list{position:static}
}
@media (max-width:820px){
  .hero{padding:38px 0 48px;margin-top:0}
  .hero-panel{margin:26px 20px 0}
  .org-detail{padding:22px}
  .org-detail-head{flex-direction:column;align-items:flex-start;gap:14px}
  .org-detail-head .unit-logo{flex:0 0 auto;width:100%;height:80px}
}


/* -------- 28. 首页栏目：鼠标移入切换页签 -------- */
.htabs{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--shadow-m);overflow:hidden}
.ht-bar{display:flex;align-items:stretch;border-bottom:1px solid var(--c-line-soft);background:var(--c-bg-soft)}
.ht-tab{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:15px 10px 12px;position:relative;background:none;border:0;cursor:pointer;font-family:inherit;color:var(--c-navy-800);transition:background .18s ease,color .18s ease}
.ht-tab b{font-size:17px;font-weight:700;letter-spacing:.05em}
.ht-tab span{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--c-muted);transition:color .18s ease}
.ht-tab::after{content:"";position:absolute;left:22%;right:22%;bottom:-1px;height:3px;border-radius:3px 3px 0 0;background:var(--grad-accent);opacity:0;transform:scaleX(.4);transition:opacity .18s ease,transform .18s ease}
.ht-tab:hover,.ht-tab.active{background:#fff;color:var(--c-ocean-600)}
.ht-tab:hover span,.ht-tab.active span{color:var(--c-ocean-600)}
.ht-tab.active::after{opacity:1;transform:scaleX(1)}
.ht-panels{position:relative}
/* 无 JS 退化：所有面板依次展开；有 JS 时单面板切换 */
.ht-ready .ht-panel{display:none}
.ht-ready .ht-panel.active{display:block;animation:htIn .28s ease}
@keyframes htIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.ht-lead{padding:20px 28px 0;color:var(--c-muted);font-size:14.5px}
.ht-panel .news-list{padding:8px 18px 0}
.ht-foot{padding:14px 28px 24px;display:flex;justify-content:flex-end}
@media (max-width:760px){
  .ht-bar{flex-direction:column}
  .ht-tab{flex-direction:row;justify-content:center;gap:10px;padding:13px 10px}
  .ht-tab::after{left:-1px;right:auto;top:18%;bottom:18%;width:3px;height:auto;border-radius:3px 0 0 3px;transform:scaleY(.4)}
  .ht-tab.active::after{transform:scaleY(1)}
  .ht-lead{padding:18px 18px 0}
  .ht-panel .news-list{padding:6px 6px 0}
  .ht-foot{padding:12px 18px 22px}
}


/* -------- 29. 往期回顾：届次页签模块 -------- */
.ht-pad{padding:16px 28px 22px}
.ht-full{font-weight:600;color:var(--c-navy-800);margin-left:6px}
.ht-panel .ed-theme{margin:0 0 16px}
.ht-panel .ed-facts--row{margin:0 0 18px}
.ht-panel .ed-mods{margin-bottom:4px}
.ht-panel .ed-hl{margin:18px 0 0}
@media (max-width:760px){
  /* 覆盖第 28 节的竖排页签：5 个届次改为两行换行排列 */
  .ht-bar{flex-direction:row;flex-wrap:wrap}
  .ht-tab{flex:1 1 40%;flex-direction:row;justify-content:center;gap:8px;padding:12px 8px}
  .ht-tab span{display:none}
  .ht-tab::after{left:20%;right:20%;bottom:-1px;height:3px;border-radius:3px 3px 0 0;transform:scaleX(.4)}
  .ht-tab.active::after{transform:scaleX(1)}
  .ht-pad{padding:14px 16px 20px}
}


/* -------- 30. 届次面板 CTA -------- */
.ht-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
@media (max-width:760px){
  .ht-cta{margin-top:16px}
  .ht-cta .btn{flex:1 1 auto;justify-content:center}
}


/* -------- 31. 首页：五届速览 / 领军卡 / 导航微调 -------- */
.ed-mini-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.ed-mini{
  display:flex;flex-direction:column;gap:10px;padding:22px 18px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-m);transition:transform .18s,box-shadow .18s,border-color .18s;
}
.ed-mini:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:var(--c-aqua-400)}
.ed-mini-top{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.ed-mini-top b{font-size:20px;color:var(--c-navy-900);letter-spacing:.02em}
.ed-mini p{font-size:13px;color:var(--c-muted);line-height:1.6;margin:0;min-height:42px}
.ed-mini-go{margin-top:auto;font-size:12.5px;font-weight:700;color:var(--c-ocean-600);display:inline-flex;align-items:center;gap:6px}
.lead-card{display:flex;flex-direction:column;align-items:flex-start}
.lead-card p{margin-bottom:0}
.lead-card .btn-row{margin-top:auto}
.lead-card .chip{
  background:var(--c-bg-soft);border-color:var(--c-line);color:var(--c-ocean-600);
  backdrop-filter:none;padding:5px 12px;font-size:12px;
}
.nav>li>a{padding:16px 11.5px;font-size:14px}
@media (max-width:1080px){
  .ed-mini-grid{grid-template-columns:repeat(2,1fr)}
  .ed-mini p{min-height:0}
}
@media (max-width:520px){
  .ed-mini-grid{grid-template-columns:1fr}
}


/* -------- 32. 首页：征文 / 注册 / 联系 板块 -------- */
.chip-lite{
  background:var(--c-bg-soft);border-color:var(--c-line);color:var(--c-ocean-600);
  backdrop-filter:none;padding:6px 13px;font-size:12.5px;
}
.mini-dates{list-style:none;margin:12px 0 0;padding:0;border-top:1px solid var(--c-line-soft)}
.mini-dates li{
  display:flex;align-items:baseline;justify-content:space-between;gap:14px;
  padding:9px 0;border-bottom:1px solid var(--c-line-soft);font-size:13.5px;
}
.mini-dates li b{font-weight:600;color:var(--c-ink)}
.mini-dates li span{color:var(--c-ocean-600);font-weight:600;font-size:13px;white-space:nowrap}
.tag-price{
  display:inline-block;margin:12px 0 14px;padding:8px 18px;border-radius:10px;
  font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--c-navy-900);
  background:var(--c-bg-tint);border:1px solid var(--c-line);
}
.card.ct-tile{display:flex;flex-direction:column;align-items:flex-start}
.ct-mail{
  margin:auto 0 0;padding-top:14px;font-size:13.5px;font-weight:600;color:var(--c-ocean-600);
  word-break:break-all;
}
@media (max-width:520px){
  .mini-dates li{flex-direction:column;gap:2px}
  .tag-price{font-size:17px}
}


/* -------- 33. 视觉打磨：字体节奏 · 阅读舒适度 · 微交互 -------- */

/* 1) 中文标题不使用负字距（负字距只对西文有效，中文会挤），英文小标题保留字距 */
h1,h2,h3,h4,h5{letter-spacing:0;line-height:1.3}
.hero h1,.phero h1{letter-spacing:-.005em;line-height:1.22}
.sec-head h2{letter-spacing:-.01em}

/* 2) 正文节奏：中文长文行高略松，段间距匀称 */
body{font-size:16px;line-height:1.82}
p{margin:0 0 1.05em}
.card p,.tl-item p,.news-item p,.org-detail p,.ed-card p,.fee-row p,
.ed-hl,.ed-role,.mod p,.qr p,.stance p{line-height:1.86}
.check-list li,.dot-list li{line-height:1.82}

/* 3) 阅读行宽（measure）：超长段落自动换到易读宽度，避免一行扫视过远 */
.sec-head .lead,.lead-lg,.stance p{max-width:64ch}
.org-detail p,.card p,.ed-hl,.fee-row p{max-width:68ch}

/* 4) 数字等宽对齐：倒计时 / 日期 / 统计 / 价格 不再左右抖动 */
.cd b,.stat b,.fee-price,.tag-price,.news-date b,.news-date .ini,
.card-num,.tl-year,.num,.monogram,.mini-dates li span,[data-year]{
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;
}

/* 5) 锚点跳转预留吸顶页头高度，跳转后标题不被遮挡 */
[id]{scroll-margin-top:104px}
.ht-tab,.org-name{scroll-margin-top:120px}

/* 6) 卡片微交互统一：更柔和的位移与阴影曲线 */
.card,.person,.qr,.ed-mini,.mod,.tbl-wrap,.htabs{
  transition:transform .26s cubic-bezier(.2,.7,.3,1),box-shadow .26s ease,border-color .26s ease;
}
.card:hover,.person:hover,.qr:hover,.ed-mini:hover{
  transform:translateY(-3px);box-shadow:0 14px 34px rgba(10,42,74,.10);
}

/* 7) 列表条目悬停：整行浅底 + 标题变色，指针位置一眼可辨 */
.news-item{
  padding:24px 18px;margin:0 -18px;border-radius:var(--r-m);
  transition:background .2s ease,border-color .2s ease;
}
.news-item:first-child{padding-top:24px}
.news-item:hover{background:var(--c-bg-soft)}
.news-item h3{line-height:1.45}

/* 8) 列表与表格：连续内容更易扫读 */
.ed-arts li,.ed-guests li,.ed-facts li,.dl-item{transition:background .18s ease}
.ed-arts li:hover,.ed-guests li:hover{background:var(--c-bg-soft);border-radius:var(--r-s)}
.tbl tbody tr:hover{background:#F7FBFC}

/* 9) 区块标题与内容之间的呼吸感，节奏更整齐 */
.sec-head{margin-bottom:32px}
.sec-head .en{margin-top:8px}
.sec-head .lead{margin-top:16px}
.rule-gold{margin-top:20px}

/* 10) 按钮/标签的按压反馈，点击更有"手感" */
.btn:active{transform:translateY(0) scale(.99)}
.btn-line:active{transform:none}

/* 11) 顶部区块渐变过渡更柔和，避免色带生硬 */
.sec-tint{background:linear-gradient(180deg,#F6FAF9 0%,#EDF5F4 100%)}

@media (max-width:820px){
  body{line-height:1.8}
  [id]{scroll-margin-top:86px}
  .news-item{padding:20px 0;margin:0;border-radius:0}
  .news-item:first-child{padding-top:20px}
  .news-item:hover{background:none}
  .org-detail p,.card p,.sec-head .lead,.lead-lg,.stance p{max-width:100%}
  .sec-head{margin-bottom:26px}
}


/* -------- 34. 手机端页头收窄：修复整页被撑宽、汉堡按钮按不到 -------- */

/* 全局保险：任何意外溢出不再把页面撑宽出横向滚动 */
html,body{overflow-x:clip}

@media (max-width:820px){
  .hero h1{white-space:normal}
}

@media (max-width:820px){
  /* 品牌区允许收缩换行，不再固定宽度 */
  .masthead .wrap{gap:12px;min-height:64px}
  .masthead .brand-mark{width:40px;height:40px}
  .brand{flex:1 1 auto;min-width:0}
  .brand-txt{min-width:0}
  .masthead .brand-zh{white-space:normal;font-size:15px;line-height:1.32}
  .brand-en{white-space:normal;font-size:8.5px;letter-spacing:.08em;margin-top:2px}

  /* 右侧按钮组压缩：语言切换与注册按钮变小，汉堡始终可见可点 */
  .mast-meta{gap:8px;flex:0 0 auto}
  .lang-switch button{padding:3px 9px;font-size:11px}
  .mast-meta .btn{padding:9px 13px;font-size:12.5px;white-space:nowrap}
  .burger{flex:0 0 auto}
}

@media (max-width:520px){
  /* 小屏隐藏英文副标题，行高进一步收紧 */
  .brand-en{display:none}
  .masthead .wrap{min-height:56px;gap:10px}
  .masthead .brand-mark{width:36px;height:36px}
  .masthead .brand-zh{font-size:14.5px}
  .mast-meta .btn{padding:8px 11px;font-size:12px}
  .lang-switch button{padding:3px 6px;font-size:10px}
}


/* -------- 35. 50 人论坛：专家卡（照片 / 姓名 / 单位 / 职务 / 职称） -------- */
.ex-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.ex-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .26s cubic-bezier(.2,.7,.3,1),box-shadow .26s ease,border-color .26s ease;
}
.ex-card:hover{transform:translateY(-3px);box-shadow:0 14px 34px rgba(10,42,74,.10);border-color:var(--c-aqua-300)}
.ex-photo{
  position:relative;aspect-ratio:1/1;display:grid;place-items:center;overflow:hidden;
  background:linear-gradient(140deg,#2AA48F 0%,#1E93A8 55%,#1C6FB2 100%);
}
.ex-photo::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);background-size:18px 18px;
}
.ex-photo .no{
  position:absolute;left:10px;top:10px;z-index:2;padding:2px 9px;border-radius:999px;
  background:rgba(6,32,52,.28);color:#fff;font-family:var(--f-num);font-size:10.5px;font-weight:700;letter-spacing:.08em;
}
.ex-photo .ini{
  position:relative;z-index:2;font-family:var(--f-num);font-size:34px;font-weight:700;
  color:rgba(255,255,255,.9);letter-spacing:.04em;
}
.ex-body{padding:16px 18px 18px;display:flex;flex-direction:column}
.ex-body h3{font-size:16px;margin:10px 0 0}
.ex-body .en-sub{margin-top:3px}
.ex-fields{margin-top:12px;padding-top:11px;border-top:1px solid var(--c-line-soft);display:grid;gap:6px}
.ex-fields li{display:flex;gap:9px;font-size:12.8px;color:var(--c-body);line-height:1.6}
.ex-fields li b{flex:0 0 2.9em;font-weight:600;color:var(--c-muted)}

@media (max-width:1080px){.ex-grid{grid-template-columns:repeat(3,1fr);gap:16px}}
@media (max-width:820px){
  .ex-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .ex-photo .ini{font-size:28px}
  .ex-body{padding:13px 14px 15px}
  .ex-fields li{font-size:12.2px}
}


/* -------- 36. 语言切换：中文 / 繁体 / 英文 -------- */
.lang-switch button{padding:3px 11px}
.lg-short{display:none}
/* 界面标签（bi）：三选一 */
html[data-lang="zh"] .l-tw{display:none!important}
html[data-lang="zh"] .l-en{display:none!important}
html[data-lang="en"] .l-zh{display:none!important}
html[data-lang="en"] .l-tw{display:none!important}
html[data-lang="zh-tw"] .l-zh{display:none!important}
html[data-lang="zh-tw"] .l-en{display:none!important}
/* 正文纯中文段落（t-*）：简体模式与英文模式显示简体，仅繁体模式显示繁体 */
html[data-lang="zh"] .t-tw,html[data-lang="en"] .t-tw{display:none!important}
html[data-lang="zh-tw"] .t-zh{display:none!important}
html[data-lang="zh-tw"] body{font-size:16px}

@media (max-width:820px){
  .lang-switch button{padding:3px 7px;font-size:10.5px}
}
@media (max-width:520px){
  /* 小屏用「简 / 繁 / EN」短标签，页头更省空间 */
  .lg-full{display:none}
  .lg-short{display:inline}
  .lang-switch button{padding:3px 8px;font-size:11px}
}


/* -------- 37. 组织机构：单位类别页签 + 单位名称展开简介 -------- */
.otabs{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-l);box-shadow:var(--shadow-m)}
.ot-panel{padding:0 0 6px}
.ot-lead{
  margin:16px 24px 0;font-size:13.5px;line-height:1.6;color:var(--c-muted);
  padding-bottom:12px;border-bottom:1px dashed var(--c-line);
}
.ot-list{display:grid;gap:10px;margin:14px 24px 20px}
.ot-item{
  border:1px solid var(--c-line);border-radius:var(--r-m);background:#fff;overflow:hidden;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.ot-item:hover{border-color:#C6DCE5}
.ot-item.open{border-color:var(--c-ocean-600);box-shadow:var(--shadow-s)}
.ot-name{
  width:100%;display:flex;align-items:center;gap:14px;text-align:left;
  padding:15px 20px;border:0;background:none;cursor:pointer;font-family:inherit;
  color:var(--c-navy-800);transition:background .18s ease,color .18s ease;
}
.ot-name:hover,.ot-item.open .ot-name{background:var(--c-bg-soft);color:var(--c-ocean-600)}
.ot-idx{
  flex:0 0 auto;font-family:var(--f-num);font-size:12.5px;font-weight:700;letter-spacing:.04em;
  color:var(--c-ocean-600);opacity:.7;
}
.ot-nmt{min-width:0;display:flex;flex-direction:column;gap:2px}
.ot-nmt b{font-size:15.5px;font-weight:700;line-height:1.4;color:inherit}
.ot-nmt em{
  font-style:normal;font-size:10.5px;font-weight:600;letter-spacing:.11em;text-transform:uppercase;
  color:var(--c-muted);transition:color .18s ease;
}
.ot-name:hover .ot-nmt em,.ot-item.open .ot-nmt em{color:var(--c-ocean-500)}
/* 展开指示：+ / − */
.ot-plus{
  flex:0 0 auto;margin-left:auto;position:relative;width:26px;height:26px;border-radius:50%;
  background:var(--c-bg-tint);transition:background .18s ease,transform .18s ease;
}
.ot-plus::before,.ot-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-ocean-600);
  transform:translate(-50%,-50%);border-radius:2px;transition:opacity .18s ease,transform .18s ease;
}
.ot-plus::before{width:11px;height:2px}
.ot-plus::after{width:2px;height:11px}
.ot-item.open .ot-plus{background:var(--c-navy-800);transform:rotate(180deg)}
.ot-item.open .ot-plus::before,.ot-item.open .ot-plus::after{background:#fff}
.ot-item.open .ot-plus::after{opacity:0;transform:translate(-50%,-50%) scaleY(.2)}
.ot-body{padding:0}
.ot-body .org-detail{
  margin:0;border:0;border-top:1px solid var(--c-line-soft);border-radius:0;
  background:var(--c-bg-soft);padding:24px;
}
.ot-ready .ot-body{display:none}
.ot-item.open .ot-body{display:block;animation:otIn .26s ease}
@keyframes otIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.ot-ready .ot-panel{display:none}
.ot-ready .ot-panel.active{display:block;animation:htIn .28s ease}

@media (max-width:760px){
  /* 4 个类别保持单行；届次页签的两行换行规则不适用于本模块 */
  .otabs .ht-bar{flex-direction:row;flex-wrap:nowrap}
  .otabs .ht-tab{flex:1 1 0;min-width:0;padding:12px 4px;gap:0}
  .otabs .ht-tab b{font-size:13.5px;letter-spacing:0;white-space:nowrap}
  .otabs .ht-tab::after{left:16%;right:16%;bottom:-1px;height:3px;top:auto;width:auto;transform:scaleX(.4)}
  .otabs .ht-tab.active::after{transform:scaleX(1)}
}
@media (max-width:820px){
  .ot-lead{margin:14px 16px 0}
  .ot-list{margin:12px 16px 18px;gap:9px}
  .ot-name{padding:14px 16px;gap:11px}
  .ot-nmt b{font-size:15px}
  .ot-body .org-detail{padding:18px}
}


/* -------- 38. 首页三栏目页签：字体统一 + 三色背景（通知公告·绿 / 行业动态·蓝 / 学术分享·金） -------- */
#channels .ht-tab{
  --tab-bg:#F1F6F8;--tab-accent:var(--c-ocean-600);
  background:var(--tab-bg);
}
#channels .ht-tab.t-g{--tab-bg:#EAF5EE;--tab-accent:#22855D}
#channels .ht-tab.t-b{--tab-bg:#E8F1F9;--tab-accent:#1C6FB2}
#channels .ht-tab.t-y{--tab-bg:#FAF3E1;--tab-accent:#A97F22}
/* 字体三页签完全一致（不随悬停 / 选中变化） */
#channels .ht-tab b{font-size:17px;font-weight:700;letter-spacing:.04em;line-height:1.4}
#channels .ht-tab span{font-size:11.5px;letter-spacing:.14em}
#channels .ht-tab::after{background:var(--tab-accent)}
#channels .ht-tab:hover,
#channels .ht-tab.active{background:var(--tab-bg);color:var(--tab-accent)}
#channels .ht-tab:hover span,
#channels .ht-tab.active span{color:var(--tab-accent)}
/* 面板顶边与页签底色自然衔接 */
#channels .htabs{overflow:hidden}
@media (max-width:760px){
  #channels .ht-bar{flex-direction:column}
  #channels .ht-tab{flex:1 1 auto;flex-direction:row;justify-content:center;gap:10px;padding:13px 12px}
  #channels .ht-tab b{font-size:15.5px}
  #channels .ht-tab span{font-size:10.5px}
  #channels .ht-tab::after{left:-1px;right:auto;top:18%;bottom:18%;width:3px;height:auto;border-radius:3px 0 0 3px;transform:scaleY(.4)}
  #channels .ht-tab.active::after{transform:scaleY(1)}
}