/* 星海校友网络 — 设计稿 星海校友官网.dc.html 的生产实现
色板、字号、间距与设计稿一致；响应式与表单逻辑为设计稿之外新增。 */
:root{
--bg:#FAF8F5; --panel:#F3F0EA; --card:#FFFFFF; --slot:#EDE9E1;
--ink:#25333B; --brand:#174F7A; --brand-lite:#17679A; --brand-deep:#123E63;
--navy:#11395A; --gold:#B78A45; --rust:#C55240;
--line:rgba(37,51,59,.12); --line-strong:rgba(37,51,59,.16);
--sub:rgba(37,51,59,.7); --sub2:rgba(37,51,59,.55); --sub3:rgba(37,51,59,.45);
--serif:'Noto Serif SC','Songti SC','Source Han Serif SC','Noto Serif CJK SC',SimSun,serif;
--sans:'Noto Sans SC','PingFang SC','Hiragino Sans GB','Microsoft YaHei',system-ui,sans-serif;
--mono:Inter,'SF Pro Display',-apple-system,'Helvetica Neue',Arial,sans-serif;
--ease:cubic-bezier(.32,.72,0,1);
--maxw:1200px; --pad:40px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg)}
body{font-family:var(--sans);color:var(--ink);-webkit-font-smoothing:antialiased;text-wrap:pretty;overflow-x:hidden}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-lite)}
::selection{background:rgba(23,79,122,.14)}
input,textarea,select,button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-lite);outline-offset:2px}
img{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}
.eyebrow{margin:0;font-family:var(--mono);font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--sub3)}
.dot{width:3px;height:3px;border-radius:50%;background:rgba(37,51,59,.3);display:inline-block}
/* 入场动画 */
[data-reveal]{opacity:0;transform:translateY(16px);
transition:opacity .62s cubic-bezier(.22,.61,.36,1),transform .72s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
[data-reveal]{opacity:1;transform:none;transition:none}
*{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
/* ── 预览提示条 ───────────────────────────── */
.notice{background:var(--gold);color:#2B1F06;font-size:13px;line-height:1.6;text-align:center;padding:9px 20px}
.notice b{font-weight:600}
/* ── 顶栏 ─────────────────────────────────── */
.hdr{position:sticky;top:0;z-index:40;transition:background .3s ease,border-color .3s ease}
.hdr--home{background:rgba(17,57,90,.92);backdrop-filter:blur(20px) saturate(150%);-webkit-backdrop-filter:blur(20px) saturate(150%);border-bottom:1px solid rgba(250,248,245,.1)}
.hdr--inner{background:rgba(250,248,245,.82);backdrop-filter:blur(20px) saturate(160%);-webkit-backdrop-filter:blur(20px) saturate(160%);border-bottom:1px solid rgba(37,51,59,.09)}
.hdr__in{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);height:74px;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{display:flex;align-items:center;gap:12px;min-width:0;flex:none}
.brand img{width:34px;height:34px;object-fit:contain;display:block}
.hdr--home .brand img{filter:brightness(1.6) saturate(.9)}
.brand__cn{font-family:var(--serif);font-size:19px;font-weight:600;letter-spacing:.06em;display:block;line-height:1.15}
.brand__en{font-family:var(--mono);font-size:10px;letter-spacing:.18em;text-transform:uppercase;display:block;line-height:1.15;margin-top:2px}
.hdr--home .brand__cn{color:#FAF8F5} .hdr--home .brand__en{color:rgba(250,248,245,.55)}
.hdr--inner .brand__cn{color:var(--brand)} .hdr--inner .brand__en{color:rgba(37,51,59,.5)}
.nav{display:flex;align-items:center;gap:4px;min-width:0}
.nav a{padding:9px 14px;border-radius:8px;font-size:14.5px;font-weight:500;white-space:nowrap;
transition:background .16s var(--ease),color .16s ease}
.hdr--home .nav a{color:rgba(250,248,245,.86)}
.hdr--home .nav a:hover,.hdr--home .nav a[aria-current]{background:rgba(250,248,245,.1);color:#fff}
.hdr--inner .nav a{color:var(--ink)}
.hdr--inner .nav a:hover,.hdr--inner .nav a[aria-current]{background:rgba(23,79,122,.07);color:var(--brand)}
.nav__cta{margin-left:14px;padding:10px 20px!important;border-radius:10px;font-weight:500;letter-spacing:.02em;
transition:background .16s ease,transform .12s var(--ease)}
.hdr--home .nav__cta{background:#FAF8F5;color:var(--brand-deep)!important}
.hdr--home .nav__cta:hover{background:#fff;color:#0B2942!important}
.hdr--inner .nav__cta{background:var(--brand);color:#FAF8F5!important}
.hdr--inner .nav__cta:hover{background:var(--brand-lite);color:#FAF8F5!important}
.nav__cta:active{transform:scale(.975)}
/* ── 首页 hero ────────────────────────────── */
.hero{position:relative;overflow:hidden;
background:radial-gradient(130% 100% at 72% 0%,#1A5480 0%,#123E63 40%,#0B2A45 74%,#071D30 100%)}
.hero__stars,.hero__stars2,.hero__stars3{position:absolute;inset:0;pointer-events:none}
.hero__stars2{opacity:.9;background-size:170px 170px}
.hero__stars3{opacity:.8;background-size:420px 420px}
.hero__glow{position:absolute;left:-24%;right:-24%;bottom:-520px;height:780px;pointer-events:none;
border-radius:50% 50% 0 0/100% 100% 0 0;
background:linear-gradient(180deg,rgba(23,103,154,.34) 0%,rgba(183,138,69,.1) 30%,rgba(7,29,48,0) 62%)}
.spark{position:absolute;background:#FAF8F5;pointer-events:none;
clip-path:polygon(50% 0%,58% 42%,100% 50%,58% 58%,50% 100%,42% 58%,0% 50%,42% 42%)}
.hero__copy{position:relative;max-width:var(--maxw);margin:0 auto;padding:118px var(--pad) 132px}
.hero__copy>div{max-width:44rem}
.hero h1{margin:30px 0 0;font-family:var(--serif);font-size:82px;line-height:1.08;letter-spacing:-.03em;font-weight:600;color:#FAF8F5}
.hero__lede{margin:30px 0 0;max-width:30em;font-size:17px;line-height:1.9;color:rgba(250,248,245,.76);font-weight:300}
.hero__btns{margin:42px 0 0;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;border-radius:10px;font-size:15.5px;font-weight:500;cursor:pointer;border:none;
transition:background .18s ease,transform .12s var(--ease),border-color .18s ease,color .18s ease}
.btn:active{transform:scale(.98)}
.btn--light{padding:14px 28px;background:#FAF8F5;color:var(--brand-deep)}
.btn--light:hover{background:#fff;color:#0B2942}
.btn--outline{padding:14px 26px;border:1px solid rgba(250,248,245,.3);color:rgba(250,248,245,.92)}
.btn--outline:hover{border-color:rgba(250,248,245,.6);background:rgba(250,248,245,.08);color:#fff}
.btn--solid{padding:15px 32px;background:var(--brand);color:#FAF8F5;box-shadow:0 1px 3px rgba(23,79,122,.2)}
.btn--solid:hover{background:var(--brand-lite);color:#FAF8F5}
.btn--ghost{padding:11px 22px;border:1px solid rgba(37,51,59,.18);background:transparent;color:var(--ink);font-size:14.5px}
.btn--ghost:hover{border-color:rgba(23,79,122,.4);background:rgba(23,79,122,.05)}
.hero__nums{margin:54px 0 0;display:flex;gap:44px;flex-wrap:wrap}
.hero__num b{font-family:var(--mono);font-size:26px;font-weight:300;color:#FAF8F5;letter-spacing:-.01em;display:block}
.hero__num span{margin:6px 0 0;font-size:13px;color:rgba(250,248,245,.55);display:block}
.hero__img{position:relative}
.hero__img img{display:block;width:100%;height:620px;object-fit:cover;object-position:center 42%;background:#0B2A45}
.hero__scrim{position:absolute;inset:0;pointer-events:none;
background:linear-gradient(to bottom,#071D30 0%,rgba(7,29,48,.45) 12%,rgba(250,248,245,0) 34%,rgba(250,248,245,0) 70%,rgba(250,248,245,.94) 100%)}
.hero__cap{position:absolute;left:0;right:0;bottom:34px;pointer-events:none}
.hero__cap div{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);display:flex;justify-content:space-between;align-items:flex-end;gap:24px}
.hero__cap p{margin:0}
.hero__cap .a{font-family:var(--serif);font-size:15px;color:rgba(37,51,59,.72);letter-spacing:.02em}
.hero__cap .b{font-family:var(--mono);font-size:12px;color:var(--sub2);letter-spacing:.08em}
/* ── 通用版式 ─────────────────────────────── */
.sec{max-width:var(--maxw);margin:0 auto;padding:104px var(--pad) 0}
.sec--band{margin:108px 0 0;background:var(--panel);border-top:1px solid rgba(37,51,59,.08);border-bottom:1px solid rgba(37,51,59,.08)}
.sec--band>div{max-width:var(--maxw);margin:0 auto;padding:92px var(--pad)}
.page{max-width:var(--maxw);margin:0 auto;padding:86px var(--pad) 110px}
.page h1{margin:18px 0 0;font-family:var(--serif);font-size:52px;line-height:1.2;letter-spacing:-.02em;font-weight:600;color:var(--brand)}
.page__lede{margin:18px 0 0;max-width:36em;font-size:16px;line-height:1.9;color:rgba(37,51,59,.75);font-weight:300}
.h2{margin:0;font-family:var(--serif);font-size:30px;font-weight:500;color:var(--brand);letter-spacing:.01em}
.sechead{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.sechead--rule{padding-bottom:22px;border-bottom:1px solid rgba(37,51,59,.14)}
.more{font-size:14.5px;color:var(--brand);white-space:nowrap}
/* 原则 / 统计 / 说明 三列 */
.cols3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:52px}
.cols4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:44px}
.topcell{border-top:1px solid var(--line-strong);padding:24px 0 0}
.topcell__no{font-family:var(--mono);font-size:12px;color:var(--gold);letter-spacing:.12em}
.topcell h3{margin:16px 0 0;font-family:var(--serif);font-size:21px;font-weight:500;color:var(--ink);letter-spacing:.01em}
.topcell p{margin:12px 0 0;font-size:14.5px;line-height:1.8;color:var(--sub);font-weight:300}
.topcell__t{margin:12px 0 0;font-size:15.5px;font-weight:500;color:var(--ink)}
.topcell__b{margin:8px 0 0;font-size:13.5px;line-height:1.8;color:rgba(37,51,59,.68);font-weight:300}
.stat__v{font-family:var(--mono);font-size:44px;line-height:1;font-weight:300;color:var(--brand);letter-spacing:-.02em}
.stat__l{margin:14px 0 0;font-size:14px;color:var(--ink)}
.stat__n{margin:6px 0 0;font-size:12.5px;color:rgba(37,51,59,.5);font-weight:300}
/* 卡片 */
.card{border:1px solid var(--line);border-radius:12px;background:var(--card)}
.evcard{display:block;padding:28px;transition:transform .22s var(--ease),box-shadow .22s ease,border-color .22s ease}
.evcard:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(37,51,59,.07);border-color:rgba(23,79,122,.24)}
.evcard h3{margin:20px 0 0;font-family:var(--serif);font-size:24px;line-height:1.4;font-weight:500;color:var(--ink)}
.evcard p{margin:12px 0 0;font-size:14.5px;line-height:1.8;color:rgba(37,51,59,.68);font-weight:300}
.evcard__foot{margin:24px 0 0;padding-top:18px;border-top:1px solid rgba(37,51,59,.1);display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.tag{padding:4px 10px;border-radius:6px;font-size:12px;font-weight:500;letter-spacing:.04em;display:inline-block}
.tag--kind{background:rgba(197,82,64,.1);color:var(--rust)}
.tag--soft{background:rgba(23,79,122,.08);color:var(--brand);font-weight:400}
.tag--gold{background:rgba(183,138,69,.12);color:var(--gold);font-weight:400}
.rows{margin:24px 0 0;border-top:1px solid rgba(37,51,59,.1)}
.row{display:grid;grid-template-columns:110px minmax(0,1fr) 150px 84px;gap:20px;align-items:center;
padding:20px 8px;border-bottom:1px solid rgba(37,51,59,.1);transition:background .16s ease,padding-left .2s var(--ease)}
.row:hover{background:rgba(23,79,122,.04);padding-left:16px}
.row__d{font-family:var(--mono);font-size:14px;color:rgba(37,51,59,.6)}
.row__t{font-size:15.5px;color:var(--ink)}
.row__w{font-size:13.5px;color:var(--sub2)}
.row__s{font-size:13px;color:var(--brand);text-align:right}
/* 图片占位（未有实拍时的斜纹块） */
.slot{background-image:repeating-linear-gradient(135deg,rgba(23,79,122,.1) 0 2px,rgba(23,79,122,0) 2px 11px);
background-color:var(--slot);display:flex;align-items:flex-end}
.slot span{font-family:var(--mono);font-size:10px;letter-spacing:.08em;color:rgba(37,51,59,.5)}
/* 来信 */
.letters{margin:44px 0 0;display:grid;grid-template-columns:minmax(0,1.28fr) minmax(0,1fr);gap:24px}
.letter{display:block;background:var(--bg);border:1px solid var(--line);border-radius:12px;overflow:hidden;
transition:transform .22s var(--ease),box-shadow .22s ease}
.letter:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(37,51,59,.08)}
.letter__meta{display:flex;gap:8px;align-items:center}
.letter__yr{font-family:var(--mono);font-size:12px;color:var(--gold);letter-spacing:.1em}
.letter__mt{font-size:12.5px;color:var(--sub2)}
.letter--sm{padding:26px 28px}
.letter--sm h3{margin:14px 0 0;font-family:var(--serif);font-size:20px;line-height:1.5;font-weight:500;color:var(--ink)}
.letter--sm p{margin:10px 0 0;font-size:14px;line-height:1.8;color:rgba(37,51,59,.66);font-weight:300}
/* CTA 大块 */
.cta{position:relative;border-radius:12px;overflow:hidden;background:var(--brand);padding:74px 64px}
.cta__grid{position:absolute;inset:0;pointer-events:none;
background-image:repeating-linear-gradient(to right,rgba(250,248,245,.07) 0 1px,rgba(250,248,245,0) 1px 96px),
repeating-linear-gradient(to bottom,rgba(250,248,245,.07) 0 1px,rgba(250,248,245,0) 1px 96px)}
.cta__in{position:relative;display:flex;align-items:flex-end;justify-content:space-between;gap:48px;flex-wrap:wrap}
.cta h2{margin:0;font-family:var(--serif);font-size:40px;line-height:1.3;font-weight:500;color:#FAF8F5}
.cta p{margin:18px 0 0;max-width:34em;font-size:15.5px;line-height:1.85;color:rgba(250,248,245,.76);font-weight:300}
.cta .btn{background:#FAF8F5;color:var(--brand);padding:15px 30px;white-space:nowrap}
.cta .btn:hover{background:#fff;color:var(--brand)}
/* 筛选 chip */
.filters{padding:22px 0;border-top:1px solid rgba(37,51,59,.14);border-bottom:1px solid rgba(37,51,59,.14);display:grid;gap:16px;grid-template-columns:minmax(0,1fr)}
.filt{display:flex;align-items:center;gap:16px;min-width:0}
.filt__l{width:68px;flex:none;font-size:13px;color:rgba(37,51,59,.5)}
.chips{display:flex;flex-wrap:wrap;gap:8px;min-width:0;flex:1}
.chip{padding:7px 14px;border-radius:999px;border:1px solid rgba(37,51,59,.16);background:transparent;color:var(--ink);
font-weight:400;font-size:13.5px;cursor:pointer;transition:background .16s ease,border-color .16s ease,color .16s ease,transform .12s var(--ease)}
.chip:hover{border-color:rgba(23,79,122,.4);color:var(--brand)}
.chip:active{transform:scale(.96)}
.chip[aria-pressed="true"]{background:var(--brand);color:#FAF8F5;border-color:var(--brand);font-weight:500}
.chip--lg{padding:9px 18px;font-size:14px}
/* 故事列表 */
.story{display:grid;grid-template-columns:132px minmax(0,1fr) 240px;gap:40px;padding:34px 12px 34px 4px;
border-bottom:1px solid rgba(37,51,59,.1);align-items:start;transition:background .18s ease}
.story:hover{background:rgba(23,79,122,.035)}
.story__yr{font-family:var(--mono);font-size:20px;color:var(--brand);letter-spacing:.01em}
.story__meta{margin:6px 0 0;font-size:12.5px;color:rgba(37,51,59,.5)}
.story h2{margin:0;font-family:var(--serif);font-size:26px;line-height:1.45;font-weight:500;color:var(--ink)}
.story p{margin:12px 0 0;font-size:15px;line-height:1.9;color:var(--sub);font-weight:300}
.story__by{margin:18px 0 0;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.story__by .n{font-size:13.5px;color:var(--ink)}
.story__by .r{font-size:13px;color:rgba(37,51,59,.5)}
.story__img{height:132px;border-radius:10px;padding:12px}
/* 活动列表 */
.event{padding:32px;display:grid;grid-template-columns:128px minmax(0,1fr) 210px;gap:36px;align-items:center;
transition:border-color .2s ease,box-shadow .2s ease}
.event:hover{border-color:rgba(23,79,122,.22);box-shadow:0 6px 20px rgba(37,51,59,.05)}
.event__m{font-family:var(--mono);font-size:13px;letter-spacing:.1em;color:rgba(37,51,59,.5)}
.event__d{font-family:var(--mono);font-size:40px;line-height:1.05;font-weight:300;color:var(--brand);letter-spacing:-.02em}
.event__w{margin:4px 0 0;font-size:12.5px;color:rgba(37,51,59,.5)}
.event h2{margin:16px 0 0;font-family:var(--serif);font-size:25px;line-height:1.45;font-weight:500;color:var(--ink)}
.event p{margin:10px 0 0;font-size:14.5px;line-height:1.85;color:var(--sub);font-weight:300}
.event__facts{margin:16px 0 0;display:flex;gap:20px;flex-wrap:wrap;font-size:13px;color:rgba(37,51,59,.6)}
.event__act{display:grid;gap:10px}
.event__act .btn{padding:13px 20px;font-size:14.5px;width:100%}
.event__note{text-align:center;font-size:12.5px;color:var(--sub2)}
/* 目录 */
.bars{display:grid;gap:14px;margin:20px 0 0}
.bar{display:grid;grid-template-columns:76px minmax(0,1fr) 54px;gap:16px;align-items:center}
.bar__l{font-size:13px;color:rgba(37,51,59,.6)}
.bar__t{display:block;height:6px;border-radius:999px;background:rgba(23,79,122,.12);overflow:hidden}
.bar__f{display:block;height:6px;border-radius:999px;background:var(--brand)}
.bar--gold .bar__t{background:rgba(183,138,69,.16)} .bar--gold .bar__f{background:var(--gold)}
.bar__v{font-family:var(--mono);font-size:13px;color:var(--ink);text-align:right}
.dirgrid{margin:24px 0 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.dircard{padding:26px;display:flex;flex-direction:column;gap:18px;
transition:border-color .2s ease,box-shadow .2s ease,transform .22s var(--ease)}
.dircard:hover{border-color:rgba(23,79,122,.22);box-shadow:0 8px 22px rgba(37,51,59,.06);transform:translateY(-2px)}
.ava{flex:none;width:46px;height:46px;border-radius:50%;background:rgba(23,79,122,.1);color:var(--brand);
display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:20px;font-weight:500}
.dircard__n{font-family:var(--serif);font-size:19px;font-weight:500;color:var(--ink);display:block}
.dircard__m{display:block;margin:4px 0 0;font-size:12.5px;color:rgba(37,51,59,.58)}
.kv{display:flex;gap:10px;align-items:baseline}
.kv b{flex:none;width:52px;font-size:12.5px;color:var(--sub3);font-weight:400}
.kv span{font-size:13.5px;color:var(--ink)}
.dircard__note{margin:0;font-size:13.5px;line-height:1.8;color:rgba(37,51,59,.68);font-weight:300}
.dircard .btn{margin-top:auto;padding:12px 16px;font-size:14px;width:100%}
.banner{display:flex;align-items:flex-start;gap:14px;padding:20px 24px;border-radius:12px;
border:1px solid rgba(183,138,69,.35);background:rgba(183,138,69,.07);flex-wrap:wrap}
.banner__dot{width:7px;height:7px;border-radius:50%;background:var(--gold);margin:8px 0 0;flex:none}
.banner__t{display:block;font-size:14.5px;font-weight:500;color:var(--ink)}
.banner__b{display:block;margin:6px 0 0;font-size:13.5px;line-height:1.8;color:var(--sub);font-weight:300}
.banner .btn{flex:none;margin-left:auto;padding:11px 20px;font-size:14px}
.seg{display:inline-flex;padding:4px;border-radius:999px;border:1px solid var(--line-strong);background:var(--card)}
.seg button{padding:9px 18px;border-radius:999px;border:none;background:transparent;color:var(--ink);
font-size:13.5px;cursor:pointer;transition:background .16s ease,color .16s ease}
.seg button[aria-pressed="true"]{background:var(--brand);color:#FAF8F5;font-weight:500}
.empty{padding:64px 40px;border:1px dashed rgba(37,51,59,.2);border-radius:12px;text-align:center}
.empty h3{margin:0;font-family:var(--serif);font-size:21px;color:var(--ink);font-weight:500}
.empty p{margin:12px 0 0;font-size:14.5px;color:rgba(37,51,59,.62);font-weight:300}
.empty__btns{margin:26px 0 0;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
/* 表单 */
.form{padding:40px}
.form h2{margin:0;font-family:var(--serif);font-size:22px;font-weight:500;color:var(--brand)}
.form h2+p{margin:10px 0 0;font-size:13.5px;line-height:1.8;color:rgba(37,51,59,.62);font-weight:300}
.fields{margin:26px 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.field{display:grid;gap:8px}
.field--full{grid-column:span 2}
.field>span{font-size:13.5px;color:var(--ink)}
.req{color:var(--rust)}
.field input,.field select,.field textarea{padding:12px 14px;border-radius:10px;border:1px solid rgba(37,51,59,.18);
background:var(--bg);font-size:14.5px;color:var(--ink);width:100%}
.field textarea{resize:vertical;min-height:84px;line-height:1.7}
.field input:invalid:not(:placeholder-shown){border-color:rgba(197,82,64,.5)}
.hint{padding:18px;border:1px dashed rgba(37,51,59,.24);border-radius:10px;background:var(--bg);
font-size:13.5px;line-height:1.75;color:rgba(37,51,59,.66);font-weight:300}
.consent{display:flex;align-items:flex-start;gap:14px;padding:18px 20px;border:1px solid rgba(37,51,59,.14);
border-radius:10px;background:var(--bg);cursor:pointer;transition:border-color .16s ease,background .16s ease}
.consent:hover{border-color:rgba(23,79,122,.32);background:rgba(23,79,122,.03)}
.consent input{margin:3px 0 0;width:17px;height:17px;accent-color:var(--brand);flex:none}
.consent .t{font-size:14.5px;color:var(--ink);display:block}
.consent .b{font-size:13px;line-height:1.75;color:rgba(37,51,59,.62);font-weight:300;display:block;margin-top:6px}
.submitrow{margin:32px 0 0;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.submitrow span{font-size:13px;color:var(--sub2)}
.result{margin:22px 0 0;padding:20px 22px;border-radius:10px;display:flex;gap:14px;align-items:flex-start}
.result--ok{border:1px solid rgba(23,79,122,.25);background:rgba(23,79,122,.06)}
.result--err{border:1px solid rgba(197,82,64,.3);background:rgba(197,82,64,.07)}
.result__dot{width:8px;height:8px;border-radius:50%;background:var(--brand);margin:7px 0 0;flex:none}
.result--err .result__dot{background:var(--rust)}
.result__t{display:block;font-size:14.5px;font-weight:500;color:var(--brand)}
.result--err .result__t{color:var(--rust)}
.result__b{display:block;margin:6px 0 0;font-size:13.5px;line-height:1.75;color:var(--sub);font-weight:300}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.62fr);gap:56px;align-items:start;margin:60px 0 0}
.split--about{grid-template-columns:minmax(0,1fr) minmax(0,.72fr);gap:72px;margin:56px 0 0}
.aside{display:grid;gap:24px;align-content:start}
.panel{border:1px solid var(--line);border-radius:12px;padding:30px}
.panel--warm{background:var(--panel)} .panel--white{background:var(--card)}
.panel h3{margin:0;font-family:var(--serif);font-size:19px;font-weight:500;color:var(--brand)}
.rolelink{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 18px;border-radius:10px;
background:var(--bg);border:1px solid rgba(37,51,59,.1);transition:transform .2s var(--ease),border-color .2s ease}
.rolelink:hover{transform:translateX(3px);border-color:rgba(23,79,122,.3)}
.rolelink .t{display:block;font-size:14.5px;color:var(--ink)}
.rolelink .b{display:block;margin:4px 0 0;font-size:12.5px;color:rgba(37,51,59,.6);font-weight:300}
.note{display:flex;gap:12px;align-items:flex-start}
.note__dot{width:5px;height:5px;border-radius:50%;background:var(--gold);margin:8px 0 0;flex:none}
.note span{font-size:13.5px;line-height:1.8;color:rgba(37,51,59,.72);font-weight:300}
.prose h2{margin:48px 0 0;font-family:var(--serif);font-size:22px;font-weight:500;color:var(--ink)}
.prose h2:first-child{margin-top:0}
.prose p{margin:16px 0 0;font-size:16px;line-height:1.95;color:rgba(37,51,59,.78);font-weight:300}
.pledge{padding-bottom:20px;border-bottom:1px solid rgba(37,51,59,.1)}
.pledge:last-child{border-bottom:none;padding-bottom:0}
.pledge b{font-size:15px;font-weight:500;color:var(--ink);display:block}
.pledge span{margin:8px 0 0;font-size:13.5px;line-height:1.8;color:rgba(37,51,59,.66);font-weight:300;display:block}
/* 页脚 */
.foot{border-top:1px solid var(--line);background:var(--panel);margin-top:0}
.foot__in{max-width:var(--maxw);margin:0 auto;padding:64px var(--pad) 40px}
.foot__grid{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:48px}
.foot__about{margin:18px 0 0;max-width:26em;font-size:13.5px;line-height:1.85;color:rgba(37,51,59,.62);font-weight:300}
.foot__ct{font-size:13px;color:rgba(37,51,59,.5);letter-spacing:.04em}
.foot__links{margin:16px 0 0;display:grid;gap:10px}
.foot__links a{font-size:14px;color:var(--ink)}
.foot__links a:hover{color:var(--brand-lite)}
.foot__bar{margin:56px 0 0;padding-top:24px;border-top:1px solid rgba(37,51,59,.1);
display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;
font-size:12.5px;color:rgba(37,51,59,.5)}
.foot__bar .en{font-family:var(--mono)}
/* ── 响应式（设计稿之外新增；微信内多为手机访问）──────── */
@media (max-width:1100px){
:root{--pad:32px}
.hero h1{font-size:64px}
.hero__img img{height:480px}
.page h1{font-size:44px}
.cta{padding:56px 44px} .cta h2{font-size:34px}
.dirgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
.cols4{gap:32px}
}
@media (max-width:880px){
.cols3,.cols4{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
.letters{grid-template-columns:1fr}
.split,.split--about{grid-template-columns:1fr;gap:40px}
.story{grid-template-columns:96px minmax(0,1fr);gap:24px}
.story__img{display:none}
.event{grid-template-columns:96px minmax(0,1fr);gap:24px}
.event__act{grid-column:1/-1}
.row{grid-template-columns:72px minmax(0,1fr) 76px;gap:12px}
.row__w{display:none}
.foot__grid{grid-template-columns:1fr 1fr;gap:32px}
.foot__grid>div:first-child{grid-column:1/-1}
}
@media (max-width:640px){
:root{--pad:20px}
.hdr__in{height:64px;gap:12px}
.brand img{width:30px;height:30px}
.brand__cn{font-size:17px} .brand__en{font-size:9px}
/* 导航横向滚动，不做汉堡：一屏放不下就滑，微信里更好点 */
.nav{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;flex:1;justify-content:flex-end}
.nav::-webkit-scrollbar{display:none}
.nav a{padding:8px 10px;font-size:13.5px}
.nav__cta{margin-left:6px;padding:8px 14px!important;font-size:13.5px}
.hero__copy{padding:64px var(--pad) 72px}
.hero h1{font-size:40px;line-height:1.15;margin-top:0}
.hero__lede{font-size:15.5px;line-height:1.85;margin-top:22px}
.hero__btns{margin-top:30px;gap:10px}
.btn--light,.btn--outline{padding:13px 22px;font-size:14.5px}
.hero__nums{margin-top:38px;gap:26px}
.hero__num b{font-size:22px}
.hero__img img{height:300px}
.hero__cap{bottom:16px}
.hero__cap .b{display:none}
.spark{display:none}
.sec{padding:64px var(--pad) 0}
.sec--band{margin-top:64px} .sec--band>div{padding:56px var(--pad)}
.page{padding:48px var(--pad) 72px}
.page h1{font-size:34px}
.page__lede{font-size:15px}
.h2{font-size:24px}
.cols3,.cols4{grid-template-columns:1fr;gap:28px}
.letters{gap:16px}
.cta{padding:40px 26px} .cta h2{font-size:26px;line-height:1.35}
.cta p{font-size:14.5px} .cta__in{gap:26px}
.cta .btn{width:100%;text-align:center}
.filt{flex-direction:column;align-items:stretch;gap:10px}
.filt__l{width:auto}
.chips{overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px;scrollbar-width:none;
min-width:0;width:100%;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{display:none}
.chip{white-space:nowrap}
.story{grid-template-columns:1fr;gap:10px;padding:26px 0}
.story__yr{font-size:16px}
.story h2{font-size:21px}
.story p{font-size:14.5px}
.event{grid-template-columns:1fr;gap:18px;padding:24px}
.event__d{font-size:32px}
.event h2{font-size:21px}
.dirgrid{grid-template-columns:1fr}
.bar{grid-template-columns:64px minmax(0,1fr) 48px;gap:12px}
.banner .btn{margin-left:0;width:100%;text-align:center}
.form{padding:24px 20px}
.fields{grid-template-columns:1fr;gap:16px}
.field--full{grid-column:span 1}
.btn--solid{width:100%;text-align:center}
.foot__in{padding:44px var(--pad) 32px}
.foot__grid{grid-template-columns:1fr;gap:28px}
.foot__bar{margin-top:36px}
}
/* hero 星空三层（照搬设计稿的渐变星点） */
.hero__stars{background-image:
radial-gradient(1.7px 1.7px at 6% 16%,rgba(255,255,255,.9),rgba(255,255,255,0) 62%),
radial-gradient(1.2px 1.2px at 12% 44%,rgba(255,255,255,.5),rgba(255,255,255,0) 62%),
radial-gradient(1.4px 1.4px at 18% 9%,rgba(255,255,255,.72),rgba(255,255,255,0) 62%),
radial-gradient(1px 1px at 23% 66%,rgba(255,255,255,.45),rgba(255,255,255,0) 62%),
radial-gradient(1.9px 1.9px at 30% 26%,rgba(255,255,255,.88),rgba(255,255,255,0) 62%),
radial-gradient(1.1px 1.1px at 36% 54%,rgba(255,255,255,.4),rgba(255,255,255,0) 62%),
radial-gradient(1.5px 1.5px at 43% 12%,rgba(255,255,255,.7),rgba(255,255,255,0) 62%),
radial-gradient(1.2px 1.2px at 48% 36%,rgba(255,255,255,.5),rgba(255,255,255,0) 62%),
radial-gradient(2px 2px at 55% 20%,rgba(255,255,255,.85),rgba(255,255,255,0) 62%),
radial-gradient(1px 1px at 60% 60%,rgba(255,255,255,.38),rgba(255,255,255,0) 62%),
radial-gradient(1.4px 1.4px at 66% 32%,rgba(255,255,255,.65),rgba(255,255,255,0) 62%),
radial-gradient(1.1px 1.1px at 71% 10%,rgba(255,255,255,.5),rgba(255,255,255,0) 62%),
radial-gradient(2.1px 2.1px at 77% 46%,rgba(255,255,255,.8),rgba(255,255,255,0) 62%),
radial-gradient(1.2px 1.2px at 82% 24%,rgba(255,255,255,.5),rgba(255,255,255,0) 62%),
radial-gradient(1.5px 1.5px at 87% 58%,rgba(255,255,255,.55),rgba(255,255,255,0) 62%),
radial-gradient(1.1px 1.1px at 92% 30%,rgba(255,255,255,.45),rgba(255,255,255,0) 62%),
radial-gradient(1.4px 1.4px at 96% 14%,rgba(255,255,255,.6),rgba(255,255,255,0) 62%),
radial-gradient(1px 1px at 8% 76%,rgba(255,255,255,.32),rgba(255,255,255,0) 62%),
radial-gradient(1.2px 1.2px at 52% 78%,rgba(255,255,255,.3),rgba(255,255,255,0) 62%),
radial-gradient(1.3px 1.3px at 89% 80%,rgba(255,255,255,.34),rgba(255,255,255,0) 62%)}
.hero__stars2{background-image:
radial-gradient(1.1px 1.1px at 14px 26px,rgba(255,255,255,.7),rgba(255,255,255,0) 60%),
radial-gradient(.9px .9px at 62px 12px,rgba(255,255,255,.5),rgba(255,255,255,0) 60%),
radial-gradient(1.3px 1.3px at 104px 74px,rgba(255,255,255,.72),rgba(255,255,255,0) 60%),
radial-gradient(.9px .9px at 148px 40px,rgba(255,255,255,.45),rgba(255,255,255,0) 60%),
radial-gradient(1.1px 1.1px at 34px 92px,rgba(255,255,255,.55),rgba(255,255,255,0) 60%),
radial-gradient(.8px .8px at 82px 132px,rgba(255,255,255,.42),rgba(255,255,255,0) 60%),
radial-gradient(1.2px 1.2px at 130px 150px,rgba(255,255,255,.6),rgba(255,255,255,0) 60%),
radial-gradient(.9px .9px at 6px 150px,rgba(255,255,255,.4),rgba(255,255,255,0) 60%)}
.hero__stars3{background-image:
radial-gradient(1.8px 1.8px at 48px 62px,rgba(255,255,255,.9),rgba(255,255,255,0) 62%),
radial-gradient(2.1px 2.1px at 210px 148px,rgba(216,235,252,.9),rgba(216,235,252,0) 62%),
radial-gradient(1.6px 1.6px at 330px 44px,rgba(255,255,255,.8),rgba(255,255,255,0) 62%),
radial-gradient(2px 2px at 128px 300px,rgba(255,255,255,.75),rgba(255,255,255,0) 62%),
radial-gradient(1.7px 1.7px at 386px 268px,rgba(216,235,252,.8),rgba(216,235,252,0) 62%),
radial-gradient(1.9px 1.9px at 268px 386px,rgba(255,255,255,.7),rgba(255,255,255,0) 62%)}
/* ── 移动端汉堡菜单 ─────────────────────────
375px 下 5 个导航项 + CTA 放不下；横滚会把「首页」推出屏幕外，
用户既看不见也不知道能滑，所以改成明确的展开菜单。 */
.burger{display:none;width:40px;height:40px;flex:none;border:none;background:transparent;
cursor:pointer;padding:10px 8px;flex-direction:column;justify-content:space-between}
.burger span{display:block;height:2px;border-radius:2px;transition:transform .28s var(--ease),opacity .2s ease}
.hdr--home .burger span{background:#FAF8F5}
.hdr--inner .burger span{background:var(--ink)}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(9px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}
@media (max-width:640px){
.burger{display:flex}
/* 去掉毛玻璃：backdrop-filter 会把顶栏合成为独立层，
使溢出到顶栏之外的下拉菜单背景失效（菜单会变透明）。移动端也不需要这个效果。 */
.hdr--home{background:#11395A;backdrop-filter:none;-webkit-backdrop-filter:none}
.hdr--inner{background:var(--bg);backdrop-filter:none;-webkit-backdrop-filter:none}
.nav{position:absolute;left:0;right:0;top:100%;z-index:50;box-shadow:0 12px 28px rgba(7,29,48,.18);flex-direction:column;align-items:stretch;
gap:0;padding:8px 20px 20px;overflow:visible;justify-content:flex-start;
opacity:0;visibility:hidden;transform:translateY(-8px);
transition:opacity .22s ease,transform .28s var(--ease),visibility .22s}
.hdr--home .nav{background:#11395A;border-bottom:1px solid rgba(250,248,245,.12)}
.hdr--inner .nav{background:var(--bg);border-bottom:1px solid var(--line)}
.nav.open{opacity:1;visibility:visible;transform:none}
.nav a{padding:15px 4px;font-size:16px;border-radius:0}
.hdr--home .nav a+a{border-top:1px solid rgba(250,248,245,.1)}
.hdr--inner .nav a+a{border-top:1px solid var(--line)}
.nav__cta{margin:14px 0 0!important;padding:14px!important;text-align:center;font-size:15px!important;border-radius:10px}
.hdr--home .nav a+.nav__cta,.hdr--inner .nav a+.nav__cta{border-top:none}
.hdr{position:sticky}
.hdr__in{position:relative}
}
/* 两列容器（原设计稿写在 inline style 里，媒体查询无法覆盖，改到这里） */
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.cols2dist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:56px}
@media (max-width:880px){
.cols2dist{gap:36px}
}
@media (max-width:700px){
/* 分布条最小需要 76+54+32=162px，两列在手机上必然裁掉内容 */
.grid2,.cols2dist{grid-template-columns:1fr;gap:20px}
.cols2dist{gap:32px}
}