:root{
  --ink:#143A61;--ink-deep:#0E2A49;--text:#4E6279;--paper:#FFFFFF;--line:#E2EAF2;
  --gold:#A9773C;--gold-bright:#C89B5A;
  --blue:#2E7CD6;--blue-deep:#1B5FAE;--blue-soft:#EAF3FC;
  --shadow-soft:0 2px 6px rgba(20,58,97,.05),0 18px 44px rgba(20,58,97,.07);
  --shadow-card:0 1px 2px rgba(20,58,97,.04),0 10px 30px rgba(20,58,97,.06);
  --shadow-lift:0 6px 14px rgba(20,58,97,.07),0 26px 54px rgba(20,58,97,.11);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--paper);line-height:1.8}
::selection{background:rgba(46,124,214,.18)}
a{color:inherit;text-decoration:none}
a:focus-visible{outline:3px solid #7FB3E8;outline-offset:5px;border-radius:2px}
img{max-width:100%;height:auto}
h1,h2,h3,p{margin:0}
h1,h2,h3{font-weight:600;line-height:1.4}
button,a{-webkit-tap-highlight-color:transparent}
.wrap{max-width:1200px;margin:auto;padding:0 40px}
.skip{position:absolute;left:20px;top:-90px;background:white;padding:10px;z-index:99}
.skip:focus{top:10px}

/* ===== 按钮 ===== */
.button{display:inline-flex;align-items:center;gap:10px;padding:13px 28px;border-radius:999px;font-size:13px;font-weight:600;letter-spacing:1px;transition:transform .2s,box-shadow .2s,background .2s}
.button.primary{color:#fff;background:linear-gradient(135deg,#3E8FE3,#2E7CD6 55%,#1F6AC0);box-shadow:0 10px 24px rgba(46,124,214,.32),inset 0 1px 0 rgba(255,255,255,.35)}
.button.primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(46,124,214,.4),inset 0 1px 0 rgba(255,255,255,.35)}
.button.primary.small{padding:10px 22px;font-size:12px}
.button.ghost{color:var(--ink);background:rgba(255,255,255,.85);border:1px solid #D5E2EE;box-shadow:0 4px 14px rgba(20,58,97,.06)}
.button.ghost:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
.button.light{color:var(--ink-deep);background:#fff;box-shadow:0 14px 34px rgba(6,26,48,.28),inset 0 1px 0 rgba(255,255,255,.8)}
.button.light:hover{transform:translateY(-2px);box-shadow:0 20px 44px rgba(6,26,48,.34)}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;border-bottom:1px solid transparent;transition:color .2s}
.text-link:hover{color:var(--blue)}

/* ===== 头部 ===== */
.header{
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:saturate(1.5) blur(16px);backdrop-filter:saturate(1.5) blur(16px);
  border-bottom:1px solid rgba(226,234,242,.9);
  position:sticky;top:0;z-index:20;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:88px;gap:30px;position:relative}
.brand img{width:172px;vertical-align:middle}
.header nav{display:flex;align-items:center;gap:30px;font-size:13px;font-weight:500;white-space:nowrap;margin-left:auto}
.header nav a{position:relative;padding:4px 0;transition:color .2s}
.header nav a:not(.nav-action)::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1.5px;width:0;
  background:var(--blue);transition:width .25s ease;
}
.header nav a:not(.nav-action):hover::after{width:100%}
.header nav a:hover{color:var(--blue)}
.nav-action{
  border:1px solid #B9CDDF;padding:9px 20px;border-radius:999px;
  transition:border-color .2s,color .2s,background .2s,box-shadow .2s;
}
.nav-action:hover{border-color:var(--blue);background:rgba(46,124,214,.07);box-shadow:0 4px 14px rgba(46,124,214,.14)}
.nav-action span{margin-left:14px}
.login-link{white-space:nowrap;font-size:12px;padding:9px 0 9px 23px;border-left:1px solid #DCE3E8;transition:color .2s}
.login-link span{margin-left:9px}
.login-link:hover{color:var(--blue)}

/* ===== 首屏 ===== */
.hero{
  position:relative;overflow:hidden;
  background:url(assets/hero-bg.jpg) right top/cover no-repeat;
  padding:110px 0 120px;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(255,255,255,.92) 0%,rgba(255,255,255,.78) 30%,rgba(255,255,255,.25) 55%,rgba(255,255,255,0) 75%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center}
.eyebrow{display:flex;align-items:center;gap:12px;letter-spacing:2.5px;font-size:11px;color:#66798A;font-weight:600}
.eyebrow span{width:6px;height:6px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px rgba(46,124,214,.16)}
h1{font-size:clamp(40px,5vw,64px);letter-spacing:4px;margin:30px 0 26px;line-height:1.3;color:var(--ink-deep)}
h1 em{
  font-style:normal;font-family:"Songti SC","STSong",serif;font-weight:500;color:var(--gold);
  background:linear-gradient(transparent 64%,rgba(169,119,60,.16) 0);
}
.hero-intro{font-size:14.5px;color:var(--text);line-height:2.1}
.hero-actions{display:flex;align-items:center;gap:18px;margin-top:36px;flex-wrap:wrap}
.hero-art{position:relative;min-height:420px}
.orbit{position:absolute;border:1px solid rgba(46,124,214,.22);border-radius:50%;pointer-events:none}
.orbit-one{width:420px;height:420px;left:50%;top:50%;transform:translate(-50%,-50%)}
.orbit-two{width:520px;height:520px;left:50%;top:50%;transform:translate(-50%,-50%);border-color:rgba(46,124,214,.12)}
.glass-card{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:218px;height:258px;border-radius:26px;
  background:linear-gradient(160deg,rgba(255,255,255,.82),rgba(255,255,255,.55));
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:0 24px 60px rgba(20,58,97,.18),inset 0 1px 0 rgba(255,255,255,.95);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
}
.glass-card strong{font-size:26px;letter-spacing:6px;color:var(--ink-deep)}
.glass-card span{font-size:12.5px;color:var(--text);text-align:center;line-height:2;letter-spacing:2px}
.pill{
  position:absolute;display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.9);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.95);border-radius:999px;padding:8px 18px;
  font-size:11.5px;font-weight:500;color:var(--ink);letter-spacing:1.5px;
  box-shadow:0 10px 26px rgba(20,58,97,.14);
}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--blue)}
.pill-one{top:12%;left:16%}
.pill-two{top:42%;right:2%}
.pill-three{bottom:8%;left:24%}

/* ===== 通用区块 ===== */
.section{padding:92px 0}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:44px}
.section-heading h2{font-size:clamp(26px,2.8vw,36px);letter-spacing:2.5px;margin-top:20px}
.section-heading>p,.heading-link{font-size:12.5px;color:#7A8A99;text-align:right;line-height:2;flex-shrink:0}
.heading-link{transition:color .2s;white-space:nowrap}
.heading-link:hover{color:var(--blue)}

/* ===== 01 关于汇智岛 ===== */
.about{background:linear-gradient(180deg,#F5FAFE 0%,#FFFFFF 88%)}
.about-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:70px;align-items:center}
.about-lead{margin-top:26px;font-size:13.5px;color:var(--text);line-height:2.1}
.dash{display:inline-block;width:34px;height:2px;background:var(--ink);margin-top:30px}
.about-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow-card);padding:38px 40px;
}
.about-card-head{font-size:13.5px;font-weight:600;line-height:2;color:var(--ink-deep)}
.about-trio{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:28px}
.about-trio>div{display:flex;flex-direction:column;align-items:center;text-align:center;gap:8px;padding:18px 8px;border-radius:14px;transition:background .2s}
.about-trio>div:hover{background:var(--blue-soft)}
.about-trio svg{width:34px;height:34px;fill:none;stroke:var(--blue);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.about-trio strong{font-size:13px;letter-spacing:1px}
.about-trio small{font-size:11px;color:#8A98A6;letter-spacing:1px}

/* ===== 02 我们的服务 ===== */
.programs{background:#fff}
.tag{display:inline-block;font-size:11px;color:var(--blue);letter-spacing:2px;font-weight:600;background:var(--blue-soft);border-radius:999px;padding:5px 14px}
.featured-program{
  display:flex;align-items:center;justify-content:space-between;gap:50px;
  background:linear-gradient(120deg,#F4FAFF 0%,#FFFFFF 60%);
  border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow-soft);
  padding:46px 52px;
}
.featured-copy .program-number{margin:18px 0 4px}
.program-number{font-size:13px;font-weight:700;color:#9AB3C8;letter-spacing:2px}
.featured-copy h3{font-size:clamp(22px,2.4vw,30px);letter-spacing:2px;margin:6px 0 14px;color:var(--ink-deep)}
.featured-copy>p:not(.tag):not(.program-number){font-size:13.5px;color:var(--text);line-height:2.05}
.featured-copy .button{margin-top:26px}
.featured-art{display:flex;flex-direction:column;align-items:center;gap:2px;flex-shrink:0}
.featured-art img{width:200px;height:200px;object-fit:cover;border-radius:20px;mix-blend-mode:multiply}
.featured-art .ai-word{font-family:Georgia,"Times New Roman",serif;font-size:64px;font-weight:700;color:var(--blue);letter-spacing:4px;line-height:1.1;margin-top:-30px}
.featured-art .ai-caption{font-size:11.5px;color:#7A8A99;letter-spacing:3px}
.program-trio{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:22px}
.program-trio article{
  background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-card);
  padding:30px 30px 28px;transition:transform .25s,box-shadow .25s;position:relative;
}
.program-trio article:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.card-icon{width:32px;height:32px;fill:none;stroke:var(--blue);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;margin-bottom:14px}
.program-trio h3{font-size:17px;letter-spacing:1.5px;margin:4px 0 10px;color:var(--ink-deep)}
.program-trio p:not(.program-number){font-size:12.5px;color:var(--text);line-height:1.95;min-height:48px}
.program-trio .text-link{margin-top:14px;font-size:12.5px}
.article-links{display:flex;gap:22px;margin-top:14px}
.article-links .text-link{margin-top:0}

/* ===== 03 成长学习 ===== */
.learning{background:linear-gradient(180deg,#F5FAFE 0%,#FFFFFF 90%)}
.learning-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.learning-grid article{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:18px;
  box-shadow:var(--shadow-card);padding:30px 24px 26px;display:flex;flex-direction:column;gap:16px;
  transition:transform .25s,box-shadow .25s;
}
.learning-grid article:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift)}
.learning-grid img{width:54px;height:54px;object-fit:cover;border-radius:12px;mix-blend-mode:multiply}
.learning-grid strong{display:block;font-size:14.5px;letter-spacing:1.5px;color:var(--ink-deep)}
.learning-grid small{font-size:11.5px;color:#8A98A6;letter-spacing:1px}
.learning-grid .go{position:absolute;right:20px;bottom:18px;font-size:14px;color:#B9C8D4;transition:color .2s,transform .2s}
.learning-grid article:hover .go{color:var(--blue);transform:translateX(3px)}

/* ===== 04 精彩活动 ===== */
.events{background:#fff}
.event-list{display:flex;flex-direction:column;gap:18px}
.event-row{
  display:flex;align-items:center;gap:30px;
  background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-card);
  padding:22px 30px;transition:transform .25s,box-shadow .25s;
}
.event-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.event-date{display:flex;flex-direction:column;align-items:center;min-width:52px;line-height:1.35}
.event-date b{font-size:19px;font-weight:700;color:var(--ink-deep);font-variant-numeric:tabular-nums}
.event-date i{font-style:normal;font-size:10.5px;color:#8A98A6;margin-top:4px}
.event-info{flex:1;min-width:0}
.event-info strong{display:block;font-size:15.5px;letter-spacing:1px;color:var(--ink-deep)}
.event-info small{display:block;font-size:11.5px;color:#8A98A6;margin-top:8px;letter-spacing:.5px}
.event-info em{font-style:normal;color:var(--blue);background:var(--blue-soft);border-radius:4px;padding:2px 8px;margin-right:10px;font-size:10.5px}
.event-row img{width:172px;height:100px;object-fit:cover;border-radius:12px;flex-shrink:0}
.event-arrow{font-size:26px;color:#B9C8D4;flex-shrink:0;transition:color .2s,transform .2s}
.event-row:hover .event-arrow{color:var(--blue);transform:translateX(4px)}

/* ===== 05 调查表入口 ===== */
.surveys{background:linear-gradient(180deg,#F5FAFE 0%,#FFFFFF 90%)}
.survey-list{display:flex;flex-direction:column;gap:14px}
.survey-list>a{
  display:flex;align-items:center;gap:24px;padding:22px 28px;background:#fff;
  border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-card);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.survey-list>a:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:#BFD8EF}
.survey-index{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;flex-shrink:0;
  background:var(--blue-soft);color:var(--blue);font-size:11px;font-weight:700;letter-spacing:1px;
}
.survey-list strong{display:block;font-size:15px;letter-spacing:1px;color:var(--ink-deep)}
.survey-list small{display:block;font-size:11.5px;color:#8A98A6;margin-top:6px}
.survey-arrow{margin-left:auto;font-size:22px;color:#B9C8D4;transition:color .2s,transform .2s}
.survey-list>a:hover .survey-arrow{color:var(--blue);transform:translate(3px,-3px)}

/* ===== 收尾 ===== */
.closing{
  position:relative;padding:110px 0;text-align:center;color:#fff;
  background:url(assets/closing-bg.jpg) center/cover no-repeat;
}
.closing::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,32,56,.55),rgba(10,32,56,.42))}
.closing .wrap{position:relative}
.closing p{font-size:10.5px;letter-spacing:3.5px;color:rgba(255,255,255,.82)}
.closing h2{font-size:clamp(26px,3.2vw,38px);letter-spacing:4px;margin:22px 0 38px;color:#fff;text-shadow:0 2px 18px rgba(6,26,48,.35)}

/* ===== 页脚 ===== */
footer{padding:34px 0;background:#F5F8FA;border-top:1px solid var(--line)}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:44px}
.f-brand{display:flex;align-items:center;gap:18px;min-width:0}
.f-name{font-size:17px;font-weight:700;letter-spacing:3px;color:var(--ink-deep);white-space:nowrap}
.f-name i{font-style:normal;font-size:9px;font-weight:500;letter-spacing:2px;color:#8A98A6;display:block;margin-top:2px}
.f-brand p{font-size:11px;line-height:1.9;color:#5D6B7A;white-space:nowrap;border-left:1px solid #D5DEE6;padding-left:18px}
.f-brand p span{display:block;font-size:9.5px;color:#8A969D;letter-spacing:1.2px}
.f-links{display:flex;flex-wrap:nowrap;justify-content:center;gap:8px 24px;font-size:12px;flex-shrink:0}
.f-links a{color:#5D6B7A;transition:color .2s;position:relative;white-space:nowrap}
.f-links a:not(:last-child)::after{content:"";position:absolute;right:-13px;top:50%;width:1px;height:11px;margin-top:-5.5px;background:#CBD4DB}
.f-links a:hover{color:var(--blue)}
.f-meta{display:flex;flex-direction:column;align-items:flex-end;gap:7px;font-size:11px;color:#7E8B94;white-space:nowrap}
.f-meta-row{display:flex;gap:18px}
.f-meta a{transition:color .2s}
.f-meta a:hover{color:var(--blue)}
@media(max-width:1120px){
  footer{padding:36px 0}
  .footer-inner{flex-direction:column;gap:22px;text-align:center}
  .f-brand{flex-direction:column;gap:10px}
  .f-brand p{white-space:normal;font-size:10.5px;border-left:none;padding-left:0}
  .f-links{flex-wrap:wrap;gap:8px 18px;font-size:11px}
  .f-links a:not(:last-child)::after{right:-10px}
  .f-meta{align-items:center;font-size:10.5px}
}

/* ===== 响应式 ===== */
@media(max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero{padding:80px 0 90px}
  .hero::before{background:linear-gradient(180deg,rgba(255,255,255,.88) 0%,rgba(255,255,255,.72) 45%,rgba(255,255,255,.35) 100%)}
  .hero-art{min-height:360px}
  .about-grid{grid-template-columns:1fr;gap:44px}
  .featured-program{flex-direction:column;align-items:flex-start;gap:34px;padding:38px 34px}
  .featured-art{flex-direction:row;align-items:center;gap:18px}
  .featured-art img{width:120px;height:120px}
  .featured-art .ai-word{margin-top:0;font-size:46px}
  .program-trio{grid-template-columns:1fr;gap:16px}
  .program-trio p:not(.program-number){min-height:0}
  .learning-grid{grid-template-columns:repeat(2,1fr)}
  .event-row{flex-wrap:wrap;gap:18px}
  .event-row img{width:100%;height:150px;order:4}
  .event-arrow{display:none}
}
@media(max-width:900px){
  .wrap{padding-left:28px;padding-right:28px}
  .header-inner{min-height:80px;gap:18px}
  .brand img{width:150px}
  .header nav{gap:16px;font-size:11px}
  .nav-action{padding:8px 12px}
  .login-link{padding-left:17px;font-size:11px}
  .section{padding:64px 0}
  .section-heading{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px}
  .section-heading>p,.heading-link{text-align:left}
  h1{letter-spacing:3px}
  .f-brand .brand img{width:140px}
  .f-meta{font-size:10px}
  .f-meta-row{gap:14px}
}
@media(max-width:640px){
  .header nav a:not(.nav-action){display:none}
  .header nav{gap:0;margin-left:0}
  .login-link{position:absolute;right:20px;top:20px;padding:0 0 0 15px;font-size:11px}
  .hero{padding:64px 0 72px}
  .hero-art{min-height:300px}
  .orbit-one{width:290px;height:290px}
  .orbit-two{width:350px;height:350px}
  .glass-card{width:180px;height:216px}
  .pill{padding:6px 13px;font-size:10.5px}
  .pill-two{right:0}
  .about-card{padding:28px 22px}
  .about-trio{grid-template-columns:1fr;gap:8px}
  .about-trio>div{flex-direction:row;text-align:left;padding:12px 14px;gap:14px}
  .featured-program{padding:30px 22px}
  .learning-grid{grid-template-columns:1fr 1fr;gap:14px}
  .event-row{padding:18px 20px;gap:14px}
  .survey-list>a{gap:14px;padding:16px;border-radius:12px}
  .survey-index{width:34px;height:34px;font-size:10px}
  .survey-list strong{font-size:13px}
  .survey-list small{font-size:10px}
  .closing{padding:80px 0}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}