/* ============================================================
   星晴 LumineEdu · v7 共享视觉系统
   基础：V6 白皮书全亮风
   定型：V0.7 PATCH-19（去创始人 IP 化、研究团队轻量化）
   适用：所有顶级页面（首页 / 研究中心 / 媒体墙 / 14 维系统 / 校区 / 案例 / 家庭支持 / 试听 等）
   引用方式：
     <link rel="stylesheet" href="lumineedu-v7-shared.css" />
     <link rel="stylesheet" href="https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@300;400;500;700;900&family=Noto+Sans+SC:wght@300;400;500;700&family=IBM+Plex+Mono:wght@400;500&display=swap" />
   最后更新：2026-05-19
   ============================================================ */

:root{
  /* 主色：象牙白系 */
  --paper:#FDFCF8;
  --bg-soft:#F5F5F0;
  --bg-cool:#F1F4F9;

  /* 深蓝主标题色 */
  --tech:#0A192F;
  --tech-soft:#1E3A5F;
  --tech-light:#E2E8F0;

  /* 4 色 accent */
  --gold:#C5A059;
  --gold-soft:#F4ECD8;
  --gold-deep:#A48343;
  --orange:#F97316;
  --orange-soft:#FFEDD5;
  --info:#1D4ED8;
  --info-soft:#DBEAFE;
  --warn:#DC2626;
  --warn-soft:#FEE2E2;

  /* 14 维 4 大领域分色 */
  --d-blue:#3B82F6;
  --d-green:#10B981;
  --d-orange:#F97316;
  --d-purple:#8B5CF6;

  /* 文字 + 边框 */
  --ink:#0F172A;
  --text:#1F2937;
  --muted:#64748B;
  --line:#E5E7EB;
  --line-strong:#CBD5E1;
}

/* ===== 基础排版 ===== */
*{box-sizing:border-box}
html,body{margin:0;background:var(--paper);color:var(--text);
  font-family:"Noto Sans SC","PingFang SC",sans-serif;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
@media(min-width:768px){html,body{font-size:17px}}
::selection{background:var(--gold);color:#fff}
a{color:var(--tech);text-decoration:none;transition:.15s}
a:hover{color:var(--gold-deep)}
.container{max-width:1100px;margin:0 auto;padding:0 24px}
.serif{font-family:"Noto Serif SC",serif}
.mono{font-family:"IBM Plex Mono",monospace;font-feature-settings:"tnum"}

h1,h2,h3,h4{font-family:"Noto Serif SC",serif;color:var(--tech);font-weight:700;line-height:1.25;letter-spacing:-.005em}
h1{font-size:36px;margin:0 0 18px;font-weight:500}
@media(min-width:768px){h1{font-size:54px;line-height:1.1;font-weight:400;letter-spacing:-.015em}}
h2{font-size:30px;margin:80px 0 24px;font-weight:700}
h3{font-size:18px;margin:24px 0 10px;font-weight:700}
p{margin:0 0 14px}

.lead{font-size:18px;color:var(--tech-soft);max-width:680px;line-height:1.75;margin:8px 0 24px;font-weight:300}
.eyebrow{display:flex;align-items:center;gap:14px;font-family:"IBM Plex Mono",monospace;font-size:12px;font-weight:500;letter-spacing:.22em;color:var(--info);text-transform:uppercase;margin-bottom:14px}
.eyebrow .cn{font-family:"Noto Sans SC",sans-serif;letter-spacing:.08em;color:var(--muted);text-transform:none;font-weight:400}
.eyebrow .sep{color:var(--line-strong);font-weight:300}

.deco-line{display:flex;align-items:center;justify-content:center;gap:16px;font-family:"Noto Serif SC",serif;color:var(--gold-deep);font-size:14px;margin:48px 0;letter-spacing:.06em;font-style:italic}
.deco-line::before,.deco-line::after{content:"";width:48px;height:1px;background:var(--gold)}

.h-orange{color:var(--orange);font-weight:700}
.h-blue{color:var(--info);font-weight:700}
.h-gold{background:linear-gradient(180deg,transparent 60%,rgba(197,160,89,.4) 60%);font-weight:700;color:var(--tech);padding:0 2px}
.strike{background:#F1F5F9;color:#94A3B8;text-decoration:line-through;padding:1px 8px;font-weight:700;border-radius:3px}

/* ===== 顶部条 + 导航 ===== */
.topbar{background:var(--tech);color:#CBD5E1;font-size:13px}
.topbar .container{display:flex;justify-content:space-between;align-items:center;padding:10px 24px;flex-wrap:wrap;gap:12px}
.topbar .brand-line{font-family:"Noto Serif SC",serif;color:var(--gold);letter-spacing:.08em}
.topbar a{color:#CBD5E1}
.navbar{background:var(--paper);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.navbar .container{display:flex;align-items:center;justify-content:space-between;padding:16px 24px}
.brand{display:flex;align-items:baseline;gap:10px}
.brand .logo{font-family:"Noto Serif SC",serif;font-weight:900;font-size:26px;color:var(--tech);letter-spacing:.04em}
.brand .sub{font-size:11px;color:var(--muted);letter-spacing:.16em;text-transform:uppercase}
.nav-links{display:none;gap:32px;font-size:14px}
@media(min-width:900px){.nav-links{display:flex}}
.nav-links a{color:var(--tech-soft);font-weight:500}
.nav-links a.active{color:var(--gold-deep);position:relative}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-22px;height:2px;background:var(--gold)}

/* ===== Hero（全亮版）===== */
.hero{background:linear-gradient(180deg,var(--paper) 0%,var(--bg-soft) 100%);position:relative;overflow:hidden;padding:48px 0 72px;border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;top:0;left:0;width:80px;height:1px;background:var(--gold)}
.hero .case-tag{display:flex;align-items:center;gap:14px;margin-bottom:24px;font-family:"IBM Plex Mono",monospace;font-size:11px;font-weight:700;letter-spacing:.22em;color:var(--gold-deep);text-transform:uppercase;flex-wrap:wrap}
.hero .case-tag .stamp{background:var(--tech);color:var(--gold);padding:6px 14px;letter-spacing:.16em;border-radius:3px}
.hero h1 .em{background:linear-gradient(135deg,var(--tech) 0%,var(--gold-deep) 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-title-main,.hero-title-sub{display:block}
.hero-title-sub{font-size:.72em;line-height:1.32;color:var(--tech);font-weight:300}
.hero-title-sub.strong{font-weight:500;letter-spacing:.01em}
.hero-lead{display:flex;flex-direction:column;gap:8px}
.hero-lead .lead-kicker{display:block;font-size:1.03em;color:var(--tech)}
.hero-lead .lead-line{display:block}
.hero-grid{display:grid;grid-template-columns:1fr;gap:48px;margin-top:24px;align-items:center}
@media(min-width:900px){.hero-grid{grid-template-columns:1.3fr 1fr;gap:72px}}
@media(max-width:767px){.hero-title-sub{font-size:.82em}}
.hero-quote{margin-top:32px;padding:18px 24px;border-left:3px solid var(--gold);background:rgba(197,160,89,.06);font-family:"Noto Serif SC",serif;color:var(--tech-soft);font-size:15px;line-height:1.85;font-style:italic;border-radius:0 8px 8px 0}
.hero-quote::before{content:"\201C ";color:var(--gold);font-weight:700;font-size:24px;font-style:normal}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 28px;font-size:14px;letter-spacing:.04em;border-radius:6px;font-weight:500;min-height:48px;transition:.15s;cursor:pointer;border:1px solid transparent}
.btn.gold{background:var(--gold);color:#fff}
.btn.gold:hover{background:var(--gold-deep)}
.btn.tech{background:var(--tech);color:#fff}
.btn.tech:hover{background:var(--tech-soft)}
.btn.outline{background:transparent;color:var(--tech);border-color:var(--tech)}
.btn.outline:hover{background:var(--tech);color:#fff}
.arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(3px)}

/* ===== Hero 视觉变体：螺旋光绳树（V6）===== */
.spiral-light{aspect-ratio:3/4;position:relative;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse at 50% 30%,rgba(197,160,89,.08) 0%,rgba(255,255,255,0) 60%);border-radius:12px}
.spiral-light svg{width:100%;height:100%;max-width:380px;display:block}
.spiral-light .star-top{position:absolute;top:8%;left:50%;transform:translateX(-50%);width:32px;height:32px;background:radial-gradient(circle,var(--gold) 0%,rgba(197,160,89,.3) 60%,transparent 75%);border-radius:50%;box-shadow:0 0 24px rgba(197,160,89,.5);animation:twinkle 3s ease-in-out infinite}
@keyframes twinkle{0%,100%{opacity:1}50%{opacity:.6}}
.spiral-labels{position:absolute;left:0;top:0;width:100%;height:100%;pointer-events:none}
.spiral-labels .lbl{position:absolute;font-family:"Noto Sans SC",sans-serif;font-size:12px;color:var(--tech-soft);font-weight:400;max-width:140px;text-align:left}
.spiral-labels .lbl.left{left:-4px;text-align:left}
.spiral-labels .lbl.right{right:-4px;text-align:right}
.spiral-labels .lbl .en{display:block;font-family:"IBM Plex Mono",monospace;font-size:9px;letter-spacing:.16em;color:var(--gold-deep);text-transform:uppercase;margin-bottom:2px}
.spiral-labels .lbl strong{font-weight:600;color:var(--tech)}
.l1{top:14%}
.l2{top:24%}
.l3{top:34%}
.l4{top:44%}
.l5{top:54%}
.l6{top:64%}
.l7{top:74%}
.l8{top:84%}
.l9{top:20%}
.l10{top:30%}
.l11{top:40%}
.l12{top:50%}
.l13{top:60%}
.l14{top:70%}
.spiral-light .ultimate{position:absolute;top:14px;right:14px;display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--gold-soft),rgba(197,160,89,.15));border:1px solid var(--gold);color:var(--gold-deep);padding:6px 12px;border-radius:18px;font-size:11px;letter-spacing:.06em}

/* ===== Hero 视觉变体：体系演化时间轴（PATCH-18 新增）===== */
.timeline-visual{aspect-ratio:3/4;position:relative;background:radial-gradient(ellipse at 50% 30%,rgba(29,78,216,.06) 0%,rgba(255,255,255,0) 60%);border-radius:12px;padding:24px;display:flex;flex-direction:column;justify-content:center}
.tlv-row{display:flex;align-items:center;gap:14px;padding:16px 14px;border-radius:8px;background:#fff;border:1px solid var(--line);margin-bottom:14px;box-shadow:0 4px 16px rgba(10,25,47,.04);transition:.2s}
.tlv-row:hover{transform:translateX(4px);border-color:var(--gold)}
.tlv-year{font-family:"Noto Serif SC",serif;font-size:24px;font-weight:900;color:var(--gold-deep);min-width:64px;line-height:1}
.tlv-meta{flex:1}
.tlv-meta .ver{font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--info);letter-spacing:.18em;text-transform:uppercase;font-weight:700}
.tlv-meta .desc{font-size:13px;color:var(--tech-soft);margin-top:3px;line-height:1.5}
.tlv-row.featured{background:linear-gradient(90deg,var(--gold-soft) 0%,#fff 100%);border-color:var(--gold)}
.tlv-row.featured .tlv-year{color:var(--gold-deep)}

/* ===== 数据墙 ===== */
.stats-wall{padding:64px 0;background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-wall .eyebrow-w{display:flex;justify-content:center;align-items:center;gap:14px;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.22em;color:var(--gold-deep);margin-bottom:32px}
.stats-wall .eyebrow-w::before,.stats-wall .eyebrow-w::after{content:"";width:48px;height:1px;background:var(--gold)}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden}
@media(min-width:768px){.stats-grid{grid-template-columns:repeat(4,1fr)}}
.stat{background:var(--paper);padding:32px 24px;text-align:center}
.stat .num{font-family:"Noto Serif SC",serif;font-size:56px;color:var(--tech);font-weight:300;line-height:1;letter-spacing:-.02em}
.stat .num .unit{font-family:"IBM Plex Mono",monospace;font-size:18px;color:var(--gold);margin-left:6px;font-weight:500}
.stat .lbl{font-size:14px;color:var(--tech-soft);margin-top:14px;line-height:1.5}
.stat .sub{font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--gold-deep);margin-top:8px;letter-spacing:.16em;text-transform:uppercase}

/* ===== 价格表 ===== */
.price-table{margin:8px 0;border-top:2px solid var(--tech);border-bottom:1px solid var(--line);background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 4px 24px rgba(10,25,47,.04)}
.price-row{display:grid;grid-template-columns:1fr;gap:8px;padding:28px 32px;border-bottom:1px solid var(--line)}
.price-row:last-child{border-bottom:none}
@media(min-width:768px){.price-row{grid-template-columns:1.4fr 1fr 2fr;gap:32px;align-items:baseline}}
.price-row .name{font-family:"Noto Serif SC",serif;font-size:20px;color:var(--tech);font-weight:700}
.price-row .name .sub{display:block;font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--muted);font-weight:400;letter-spacing:.12em;margin-top:4px;text-transform:uppercase}
.price-row .price{font-family:"Noto Serif SC",serif;font-size:32px;color:var(--tech);font-weight:700}
.price-row .price small{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--muted);font-weight:400;margin-left:6px}
.price-row .desc{font-size:14px;color:var(--muted);line-height:1.75}
.price-row.featured{background:linear-gradient(90deg,var(--gold-soft) 0%,#fff 100%)}
.price-row.featured .name,.price-row.featured .price{color:var(--gold-deep)}
.price-row.featured .name::before{content:"●  ";color:var(--gold)}
.policy-note{background:var(--gold-soft);border-left:3px solid var(--gold);padding:18px 24px;font-size:14px;color:var(--tech);margin-top:16px;line-height:1.75;border-radius:0 6px 6px 0}

/* ===== 痛点 CHECKLIST ===== */
.checklist-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px;display:grid;grid-template-columns:1fr;gap:24px;box-shadow:0 4px 24px rgba(10,25,47,.04);margin-top:8px}
@media(min-width:768px){.checklist-card{grid-template-columns:160px 1fr}}
.cl-icon{width:140px;height:140px;background:linear-gradient(135deg,#EFF4FB,#F8FAFC);border:1px solid var(--line);border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:14px}
.cl-icon .age{background:var(--tech);color:#fff;font-family:"IBM Plex Mono",monospace;font-size:11px;padding:4px 10px;border-radius:3px;letter-spacing:.06em;margin-bottom:8px}
.cl-icon .stage{font-family:"Noto Serif SC",serif;font-size:13px;color:var(--gold-deep);font-weight:700;margin-top:8px}
.cl-body .cl-eyebrow{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted);letter-spacing:.18em;text-transform:uppercase;margin-bottom:12px}
.cl-list{list-style:none;padding:0;margin:0 0 18px}
.cl-list li{display:flex;align-items:flex-start;gap:12px;padding:6px 0;font-size:14px;color:var(--tech-soft);line-height:1.7}
.cl-list li::before{content:"";width:10px;height:10px;background:var(--warn);flex-shrink:0;margin-top:8px;border-radius:2px}
.cl-list li strong{color:var(--warn);font-weight:700;margin-right:6px}
.cl-relate{font-size:14px;color:var(--info);background:var(--info-soft);border-left:3px solid var(--info);padding:10px 14px;border-radius:0 6px 6px 0;font-weight:500}
.cl-resolve{margin-top:14px;font-size:14px;color:var(--text);line-height:1.75}
.cl-resolve strong{color:var(--tech);font-weight:700}

/* ===== 案例时间锚 ===== */
.case-list{margin-top:8px}
.case-item{padding:48px 0;border-top:1px solid var(--line)}
.case-item:last-child{border-bottom:1px solid var(--line)}
.case-header{display:flex;align-items:center;gap:14px;margin-bottom:24px;flex-wrap:wrap}
.case-no{background:var(--tech);color:#fff;font-family:"IBM Plex Mono",monospace;font-size:11px;padding:5px 14px;letter-spacing:.18em;border-radius:3px}
.case-stamp{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.2em;color:var(--gold-deep);text-transform:uppercase;display:flex;align-items:center;gap:10px}
.case-stamp::before{content:"";width:32px;height:1px;background:var(--gold)}
.case-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
@media(min-width:900px){.case-grid{grid-template-columns:1.4fr 1fr;gap:48px}}
.case-content h3{margin:0 0 8px;font-size:26px;line-height:1.3;color:var(--tech)}
.case-content h3 .sub{display:block;font-family:"Noto Serif SC",serif;font-size:18px;color:var(--muted);font-weight:400;margin-top:6px;font-style:italic}
.case-content .meta{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 28px}

.tag{font-family:"IBM Plex Mono",monospace;font-size:11px;background:#fff;color:var(--tech);border:1px solid var(--line-strong);padding:4px 10px;border-radius:4px;letter-spacing:.04em}
.tag.dark{background:var(--tech);color:#fff;border-color:var(--tech)}
.tag.gold{background:var(--gold-soft);color:var(--gold-deep);border-color:var(--gold)}
.tag.info{background:var(--info-soft);color:var(--info);border-color:var(--info)}

.tline{display:flex;gap:20px;align-items:flex-start;padding:14px 0;position:relative}
.tline::before{content:"";position:absolute;left:9px;top:30px;bottom:-14px;width:1px;background:var(--line)}
.tline:last-child::before{display:none}
.tdot{width:18px;height:18px;border-radius:50%;border:3px solid #fff;flex-shrink:0;margin-top:5px;position:relative;z-index:1;box-shadow:0 0 0 1px var(--line)}
.tline.warn .tdot{background:var(--warn);box-shadow:0 0 0 1px var(--warn),0 0 12px rgba(220,38,38,.25)}
.tline.gold .tdot{background:var(--gold);box-shadow:0 0 0 1px var(--gold),0 0 12px rgba(197,160,89,.35)}
.tline.info .tdot{background:var(--info);box-shadow:0 0 0 1px var(--info),0 0 12px rgba(29,78,216,.25)}
.tcontent{flex:1}
.tstep{font-family:"IBM Plex Mono",monospace;font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;margin-bottom:6px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tline.warn .tstep{color:var(--warn)}
.tline.gold .tstep{color:var(--gold-deep)}
.tline.info .tstep{color:var(--info)}
.anchor{display:inline-block;color:#fff;padding:3px 10px;letter-spacing:.06em;border-radius:3px}
.tline.warn .anchor{background:var(--warn)}
.tline.gold .anchor{background:var(--gold)}
.tline.info .anchor{background:var(--info)}
.tcontent p{font-size:14px;color:var(--text);line-height:1.8;margin:0}

/* ===== 家长引言卡 ===== */
.qcard{background:#fff;border:1px solid var(--line);padding:32px 28px 28px 36px;position:relative;border-radius:8px;box-shadow:0 4px 24px rgba(10,25,47,.04)}
.qcard::before{content:"\201C";position:absolute;top:-12px;left:18px;font-family:"Noto Serif SC",Georgia,serif;font-size:96px;line-height:1;color:var(--gold);opacity:.6;font-weight:900}
.qcard .text{font-family:"Noto Serif SC",serif;font-size:16px;color:var(--tech-soft);line-height:1.95;font-weight:400;padding-top:8px}
.qcard .text .key{color:var(--tech);font-weight:700;background:linear-gradient(180deg,transparent 60%,rgba(197,160,89,.4) 60%);padding:0 2px}
.qcard .text .keyline{display:block;font-family:"Noto Serif SC",serif;font-style:normal;color:var(--tech);font-weight:700;font-size:20px;margin:14px 0;line-height:1.4}
.qcard .attr{display:flex;align-items:center;gap:14px;margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}
.qcard .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--gold-soft),var(--gold));display:flex;align-items:center;justify-content:center;font-family:"Noto Serif SC",serif;font-weight:700;color:#fff;font-size:16px}
.qcard .by{font-family:"Noto Serif SC",serif;font-size:14px;font-weight:700;color:var(--tech)}
.qcard .by .role{display:block;font-family:"IBM Plex Mono",monospace;font-size:9px;color:var(--muted);font-weight:400;letter-spacing:.14em;text-transform:uppercase;margin-top:3px}

/* ===== Italic 升华段 ===== */
.italic-section{margin:48px auto;text-align:center;padding:32px 24px}
.italic-section .text{font-family:"Noto Serif SC",serif;font-size:24px;color:var(--tech);line-height:1.7;font-weight:400;font-style:italic;letter-spacing:.02em}
@media(min-width:768px){.italic-section .text{font-size:28px}}
.italic-section .text .h{color:var(--gold-deep);font-style:normal;font-weight:700;background:linear-gradient(180deg,transparent 60%,rgba(197,160,89,.32) 60%);padding:0 4px}
.italic-section .sign{font-family:"Noto Serif SC",serif;font-size:15px;color:var(--gold-deep);margin-top:18px;letter-spacing:.16em;font-style:normal}

/* ===== 14 维元素周期表 ===== */
.periodic-light{background:var(--bg-cool);padding:80px 0;margin:80px calc(50% - 50vw) 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.periodic-light .container{position:relative;z-index:2}
.periodic-light h2{font-weight:300}
.periodic-light .lead strong{color:var(--gold-deep);font-weight:700}
.domain-grid{display:grid;grid-template-columns:1fr;gap:40px;margin-top:48px}
@media(min-width:768px){.domain-grid{grid-template-columns:repeat(2,1fr)}}
.domain-grid.one-row{grid-template-columns:1fr}
@media(min-width:900px){.domain-grid.one-row{grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}}
.domain{display:flex;flex-direction:column;gap:14px}
.domain-title{display:flex;align-items:center;gap:10px;font-family:"Noto Serif SC",serif;font-size:20px;font-weight:700;padding-bottom:14px;border-bottom:2px solid;margin-bottom:8px}
.domain.d1 .domain-title{color:var(--d-blue);border-color:var(--d-blue)}
.domain.d2 .domain-title{color:var(--d-green);border-color:var(--d-green)}
.domain.d3 .domain-title{color:var(--d-orange);border-color:var(--d-orange)}
.domain.d4 .domain-title{color:var(--d-purple);border-color:var(--d-purple)}
.domain-title .dot{width:14px;height:14px;border-radius:3px;background:currentColor}
.element{background:#fff;border:1px solid var(--line);padding:18px 20px;border-radius:8px;transition:.2s;border-top:3px solid}
.domain.d1 .element{border-top-color:var(--d-blue)}
.domain.d2 .element{border-top-color:var(--d-green)}
.domain.d3 .element{border-top-color:var(--d-orange)}
.domain.d4 .element{border-top-color:var(--d-purple)}
.element:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(10,25,47,.08)}
.element .code{font-family:"Noto Serif SC",serif;font-size:32px;font-weight:900;line-height:1;letter-spacing:-.02em}
.domain.d1 .element .code{color:var(--d-blue)}
.domain.d2 .element .code{color:var(--d-green)}
.domain.d3 .element .code{color:var(--d-orange)}
.domain.d4 .element .code{color:var(--d-purple)}
.element .name{color:var(--tech);font-weight:700;font-size:15px;margin:6px 0 8px}
.element ul{margin:0;padding:0;list-style:none}
.element li{font-size:12px;color:var(--muted);line-height:1.65;padding-left:14px;position:relative}
.element li::before{content:"·";position:absolute;left:4px;color:var(--gold);font-weight:700}
.periodic-light .pagefoot{margin-top:48px;font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--gold-deep);letter-spacing:.24em}

/* ===== 研究中心 · 方法论 4 篇入口卡（PATCH-18） ===== */
.method-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-top:32px}
@media(min-width:768px){.method-grid{grid-template-columns:repeat(2,1fr)}}
.method-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px;box-shadow:0 4px 24px rgba(10,25,47,.04);transition:.2s;display:flex;flex-direction:column;border-top:3px solid var(--gold)}
.method-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(10,25,47,.08)}
.method-card .stamp{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.22em;color:var(--gold-deep);text-transform:uppercase;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.method-card .stamp::before{content:"";width:24px;height:1px;background:var(--gold)}
.method-card h3{margin:0 0 8px;font-size:22px;color:var(--tech);font-weight:700}
.method-card .sub{font-family:"Noto Serif SC",serif;font-size:14px;color:var(--muted);font-style:italic;margin-bottom:14px}
.method-card .desc{color:var(--tech-soft);font-size:14px;line-height:1.75;margin-bottom:16px;flex:1}
.method-card .meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px}
.method-card .read-link{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--info);letter-spacing:.12em;text-transform:uppercase;font-weight:500;display:flex;align-items:center;gap:8px}
.method-card .read-link:hover{color:var(--gold-deep)}

/* ===== 白皮书 featured（PATCH-18） ===== */
.whitepaper-featured{background:linear-gradient(135deg,var(--tech) 0%,var(--tech-soft) 100%);color:#fff;border-radius:12px;padding:48px 40px;margin-top:32px;position:relative;overflow:hidden;box-shadow:0 16px 48px rgba(10,25,47,.18)}
.whitepaper-featured::before{content:"";position:absolute;top:0;right:0;width:200px;height:200px;background:radial-gradient(circle,rgba(197,160,89,.18) 0%,transparent 70%);pointer-events:none}
.wf-grid{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;position:relative;z-index:1}
@media(min-width:768px){.wf-grid{grid-template-columns:1fr 240px;gap:48px}}
.wf-stamp{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.22em;color:var(--gold);text-transform:uppercase;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.wf-stamp::before{content:"";width:24px;height:1px;background:var(--gold)}
.wf-grid h3{font-size:28px;color:#fff;margin:0 0 14px;font-weight:500}
.wf-grid p{color:rgba(255,255,255,.75);font-size:15px;line-height:1.85;margin:0 0 18px}
.wf-meta{display:flex;flex-wrap:wrap;gap:24px;font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--gold);letter-spacing:.06em;margin-bottom:18px}
.wf-meta span strong{color:#fff;font-weight:500}
.wf-cover{aspect-ratio:3/4;background:linear-gradient(165deg,rgba(255,255,255,.08) 0%,rgba(197,160,89,.18) 100%);border-radius:8px;padding:24px 18px;border:1px solid rgba(197,160,89,.4);display:flex;flex-direction:column;justify-content:space-between}
.wf-cover .top{font-family:"IBM Plex Mono",monospace;font-size:9px;color:var(--gold);letter-spacing:.18em}
.wf-cover .title{font-family:"Noto Serif SC",serif;font-size:20px;color:#fff;font-weight:300;line-height:1.3}
.wf-cover .footer{font-family:"IBM Plex Mono",monospace;font-size:9px;color:rgba(255,255,255,.5);letter-spacing:.12em}

/* ===== 行业观察列表（PATCH-18） ===== */
.paper-list{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-top:24px}
.paper-item{background:#fff;padding:24px 28px;display:grid;grid-template-columns:80px 1fr auto;gap:20px;align-items:center;transition:.15s}
.paper-item:hover{background:var(--bg-soft)}
.paper-no{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--gold-deep);letter-spacing:.16em;font-weight:700;text-align:left}
.paper-content h4{margin:0 0 6px;font-size:16px;color:var(--tech);font-weight:700;line-height:1.4}
.paper-content .meta{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted);letter-spacing:.06em}
.paper-content .meta .by{color:var(--gold-deep);font-weight:500}
.paper-action{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--info);letter-spacing:.12em}

/* ===== 研究团队 · 轻量化（PATCH-19 定型） ===== */
.team-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-top:32px}
@media(min-width:768px){.team-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.team-grid{grid-template-columns:repeat(3,1fr)}}
.team-card{background:#fff;padding:28px 24px;display:grid;grid-template-columns:64px 1fr;gap:18px;align-items:start;transition:.15s}
.team-card:hover{background:var(--bg-soft)}
.team-av{width:64px;height:64px;background:linear-gradient(135deg,var(--tech) 0%,var(--tech-soft) 100%);display:flex;align-items:center;justify-content:center;font-family:"Noto Serif SC",serif;font-size:28px;font-weight:900;color:var(--gold);border-radius:8px;position:relative}
.team-av::after{content:"";position:absolute;bottom:0;left:6px;right:6px;height:2px;background:var(--gold);border-radius:1px}
.team-card .name{font-family:"Noto Serif SC",serif;font-size:18px;color:var(--tech);margin:0;font-weight:700}
.team-card .role{font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--gold-deep);letter-spacing:.16em;margin:4px 0 10px;text-transform:uppercase;font-weight:700}
.team-card .hours{display:inline-flex;align-items:center;gap:6px;font-family:"IBM Plex Mono",monospace;font-size:11px;background:var(--tech);color:var(--gold);padding:3px 10px;border-radius:3px;letter-spacing:.06em;margin-bottom:10px}
.team-card .specs{display:flex;flex-wrap:wrap;gap:4px}
.team-card .spec-tag{font-family:"IBM Plex Mono",monospace;font-size:10px;background:var(--info-soft);color:var(--info);padding:2px 8px;border-radius:3px;letter-spacing:.04em;font-weight:500}

/* ===== 学术顾问（PATCH-18） ===== */
.advisor-grid{display:grid;grid-template-columns:1fr;gap:24px;margin-top:32px}
@media(min-width:768px){.advisor-grid{grid-template-columns:repeat(2,1fr)}}
.advisor-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px;box-shadow:0 4px 24px rgba(10,25,47,.04);border-left:3px solid var(--info)}
.advisor-card .stamp{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.22em;color:var(--info);text-transform:uppercase;font-weight:700;margin-bottom:14px}
.advisor-card .name{font-family:"Noto Serif SC",serif;font-size:20px;color:var(--tech);font-weight:700;margin:0 0 4px}
.advisor-card .title{font-size:13px;color:var(--tech-soft);margin-bottom:14px}
.advisor-card .focus{font-family:"IBM Plex Mono",monospace;font-size:11px;background:var(--info-soft);color:var(--info);padding:4px 10px;border-radius:3px;display:inline-block;letter-spacing:.04em;margin-right:6px;margin-bottom:6px;font-weight:500}
.advisor-card .collab{font-size:13px;color:var(--text);line-height:1.75;border-top:1px solid var(--line);padding-top:14px;margin-top:14px}
.advisor-card .collab strong{color:var(--tech);font-weight:700}

/* ===== 媒体看星晴 · 梯队墙（PATCH-18） ===== */
.news-tier-wall{margin-top:32px}
.tier-row{padding:24px 0;border-top:1px solid var(--line)}
.tier-row:last-child{border-bottom:1px solid var(--line)}
.tier-head{display:flex;align-items:baseline;gap:14px;margin-bottom:14px;flex-wrap:wrap}
.tier-badge{font-family:"IBM Plex Mono",monospace;font-size:10px;padding:5px 12px;border-radius:3px;letter-spacing:.16em;font-weight:700;text-transform:uppercase}
.tier-badge.tier1{background:var(--warn);color:#fff}
.tier-badge.tier2{background:var(--orange);color:#fff}
.tier-badge.tier3{background:var(--info);color:#fff}
.tier-name{font-family:"Noto Serif SC",serif;font-size:18px;color:var(--tech);font-weight:700}
.tier-count{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted);letter-spacing:.06em}
.news-list{display:grid;grid-template-columns:1fr;gap:14px;margin-top:8px}
@media(min-width:768px){.news-list{grid-template-columns:repeat(2,1fr)}}
.news-card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:18px 20px;transition:.15s}
.news-card:hover{border-color:var(--gold);box-shadow:0 4px 16px rgba(10,25,47,.06)}
.news-card .pub{font-family:"IBM Plex Mono",monospace;font-size:10px;color:var(--gold-deep);letter-spacing:.12em;text-transform:uppercase;font-weight:700;margin-bottom:8px}
.news-card .title{font-family:"Noto Serif SC",serif;font-size:15px;color:var(--tech);font-weight:500;line-height:1.5;margin-bottom:8px}
.news-card .date{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--muted)}

/* ===== 折叠 FAQ ===== */
details{border-bottom:1px solid var(--line);padding:20px 0}
details:first-of-type{border-top:1px solid var(--line)}
summary{cursor:pointer;font-family:"Noto Serif SC",serif;font-weight:700;font-size:18px;color:var(--tech);list-style:none;display:flex;justify-content:space-between;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:"IBM Plex Mono",monospace;color:var(--gold);font-weight:500;font-size:20px;margin-left:16px}
details[open] summary::after{content:"−"}
details > div{margin-top:14px;color:var(--text);font-size:15px;line-height:1.85}
details > div strong{color:var(--tech)}

/* ===== 联系区 ===== */
.contact-light{background:linear-gradient(180deg,var(--paper) 0%,var(--bg-soft) 100%);color:var(--tech);padding:80px 0;margin-top:96px;position:relative;border-top:1px solid var(--line)}
.contact-light::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:120px;height:1px;background:var(--gold)}
.contact-light .eyebrow-c{display:flex;justify-content:center;align-items:center;gap:14px;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.22em;color:var(--gold-deep);margin-bottom:14px}
.contact-light h2{color:var(--tech);font-size:36px;text-align:center;margin:0 0 48px;font-weight:300}
.contact-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media(min-width:768px){.contact-grid{grid-template-columns:repeat(3,1fr);gap:48px}}
.c-item{text-align:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:32px 24px;box-shadow:0 4px 24px rgba(10,25,47,.04)}
.c-item strong{display:block;font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-deep);margin-bottom:14px}
.c-item .val{font-family:"Noto Serif SC",serif;font-size:18px;color:var(--tech);line-height:1.4;font-weight:700}
.c-item small{color:var(--muted);display:block;margin-top:8px;font-size:13px}
.c-item .btn{margin-top:18px}

/* ===== 首页 4 大入口卡（PATCH-17） ===== */
.path-cards{display:grid;grid-template-columns:1fr;gap:20px;margin-top:32px}
@media(min-width:768px){.path-cards{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.path-cards{grid-template-columns:repeat(4,1fr)}}
.path-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px 24px;transition:.2s;display:flex;flex-direction:column;border-top:3px solid var(--info)}
.path-card.gold{border-top-color:var(--gold)}
.path-card.orange{border-top-color:var(--orange)}
.path-card.purple{border-top-color:var(--d-purple)}
.path-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(10,25,47,.08)}
.path-card .stamp{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;font-weight:700;margin-bottom:10px}
.path-card .stamp.gold{color:var(--gold-deep)}
.path-card .stamp.orange{color:var(--orange)}
.path-card .stamp.purple{color:var(--d-purple)}
.path-card h3{margin:0 0 8px;font-size:18px;color:var(--tech)}
.path-card .desc{color:var(--tech-soft);font-size:13px;line-height:1.6;margin-bottom:14px;flex:1}
.path-card .arrow-link{font-family:"IBM Plex Mono",monospace;font-size:11px;color:var(--info);letter-spacing:.12em;font-weight:500}

/* ===== 权威与研究段 2 卡（PATCH-19 调整为 2 卡） ===== */
.authority-cards{display:grid;grid-template-columns:1fr;gap:24px;margin-top:32px}
@media(min-width:768px){.authority-cards{grid-template-columns:repeat(2,1fr)}}
.auth-card{background:linear-gradient(135deg,#fff 0%,var(--gold-soft) 100%);border:1px solid var(--gold);border-radius:12px;padding:36px 32px;transition:.2s;box-shadow:0 4px 24px rgba(10,25,47,.04)}
.auth-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(10,25,47,.08)}
.auth-card .stamp{font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.22em;color:var(--gold-deep);text-transform:uppercase;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:10px}
.auth-card .stamp::before{content:"";width:32px;height:1px;background:var(--gold)}
.auth-card h3{margin:0 0 12px;font-size:24px;color:var(--tech)}
.auth-card .desc{color:var(--tech-soft);font-size:14px;line-height:1.75;margin-bottom:16px}
.auth-card .arrow-link{font-family:"IBM Plex Mono",monospace;font-size:12px;color:var(--gold-deep);letter-spacing:.12em;font-weight:500}

/* ===== 校区列表 ===== */
.store-grid{display:grid;grid-template-columns:1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-top:24px}
@media(min-width:768px){.store-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.store-grid{grid-template-columns:repeat(3,1fr)}}
.store-card{background:#fff;padding:24px;transition:.15s}
.store-card:hover{background:var(--bg-soft)}
.store-card .city{font-family:"IBM Plex Mono",monospace;font-size:10px;letter-spacing:.18em;color:var(--gold-deep);text-transform:uppercase;font-weight:700;margin-bottom:8px}
.store-card .name{font-family:"Noto Serif SC",serif;font-size:18px;color:var(--tech);font-weight:700;margin:0 0 6px}
.store-card .addr{font-size:13px;color:var(--muted);line-height:1.6;margin-bottom:10px}
.store-card .badge-row{display:flex;flex-wrap:wrap;gap:4px}

/* ===== Footer ===== */
footer{font-size:13px;color:var(--muted);padding:32px 0 48px;text-align:center;background:var(--paper);font-family:"IBM Plex Mono",monospace;letter-spacing:.04em;border-top:1px solid var(--line)}
footer .gold{color:var(--gold-deep);font-weight:700}