/* ====== 明性合育 · 设计系统 v5 — 视觉审计修正版 ====== */
:root {
  --mars: #01847F; --mars-dark: #015e5a; --mars-light: rgba(1,132,127,0.08);
  --rose: #E8A6BD; --rose-light: #F9D2E4; --rose-soft: rgba(249,210,228,0.28);
  --bg: #FDFBF7; --bg-warm: #f5efe5; --card: #FFFFFF;
  --text: #2C3E50; --text-mid: #5a6c7a; --text-light: #7F8C8D;
  --border: #e8e3d8;
  --shadow: 0 4px 24px rgba(1,132,127,0.06);
  --shadow-lg: 0 12px 48px rgba(1,132,127,0.1);
  --radius: 16px;
  --font-serif: "Noto Serif SC","Songti SC",serif;
  --font-sans: "Noto Sans SC","PingFang SC",sans-serif;
  --ease: cubic-bezier(0.16,1,0.3,1);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html:not(.js) .fade-up{opacity:1;transform:none}
html.js .fade-up{opacity:0;transform:translateY(32px)}
html.js .fade-up.visible{opacity:1;transform:translateY(0)}
body{font-family:var(--font-serif);background:var(--bg);color:var(--text);line-height:1.7;font-size:17px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(ellipse 50% 30% at 20% 15%,var(--rose-soft) 0%,transparent 65%),
             radial-gradient(ellipse 40% 35% at 78% 55%,rgba(1,132,127,0.05) 0%,transparent 60%),
             radial-gradient(ellipse 60% 25% at 50% 90%,var(--rose-soft) 0%,transparent 55%)}

/* NAV */
.nav{position:sticky;top:0;z-index:100;backdrop-filter:blur(16px) saturate(160%);-webkit-backdrop-filter:blur(16px) saturate(160%);background:rgba(253,251,247,.88);border-bottom:1px solid var(--border)}
.nav-inner{max-width:1440px;margin:0 auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between;height:64px}
.nav-brand{font-family:var(--font-serif);font-size:22px;font-weight:800;letter-spacing:4px;color:var(--mars)}
.nav-links{display:flex;gap:36px;list-style:none}
.nav-links a{font-family:var(--font-sans);font-size:15px;font-weight:500;color:var(--text-mid);text-decoration:none;letter-spacing:1px;padding:4px 0;position:relative;transition:color .25s}
.nav-links a::after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--mars);border-radius:1px;transition:width .3s var(--ease)}
.nav-links a:hover{color:var(--mars)}
.nav-links a:hover::after{width:100%}

/* CONTAINER */
.w{max-width:1440px;margin:0 auto;padding:0 40px}
.section-pad{padding:64px 0}

/* HERO — 1.333 golden ratio */
.hero{text-align:center;padding:72px 24px 48px;position:relative}
.hero-tag{display:inline-block;padding:6px 22px;background:var(--mars-light);color:var(--mars);border-radius:14px;font-family:var(--font-sans);font-size:14px;font-weight:500;letter-spacing:5px;margin-bottom:36px}
.hero h1{font-family:var(--font-serif);font-size:64px;font-weight:900;letter-spacing:12px;color:var(--text);margin-bottom:12px;line-height:1.1}
.hero h1 span{color:var(--mars)}
.hero-sub{font-size:32px;font-weight:600;color:var(--text);margin-bottom:12px;letter-spacing:2px}
.hero-main{font-size:20px;font-weight:300;color:var(--text-mid);letter-spacing:6px}

/* SECTION TITLE */
.sec-tit{text-align:center;margin-bottom:40px;font-family:var(--font-sans);font-size:14px;font-weight:500;letter-spacing:8px;color:var(--mars);text-transform:uppercase;display:flex;align-items:center;justify-content:center;gap:20px}
.sec-tit::before,.sec-tit::after{content:"";display:block;width:40px;height:1px;background:var(--border)}

/* CARDS */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:36px 32px;box-shadow:var(--shadow);transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .35s var(--ease);position:relative;overflow:hidden}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(1,132,127,.18)}
.card .num{position:absolute;top:16px;right:24px;font-family:var(--font-serif);font-size:52px;font-weight:900;color:rgba(1,132,127,.05);pointer-events:none;line-height:1}
.card.green{border-top:3px solid var(--mars)}
.card.pink{border-top:3px solid var(--rose)}
.card.green-subtle{border-top:3px solid var(--mars);background:linear-gradient(135deg,#f8fcfa,#f5faf7)}
.card.pink-subtle{border-top:3px solid var(--rose);background:linear-gradient(135deg,#fffafb,#fdf5f7)}
.card h3{font-family:var(--font-serif);font-size:20px;font-weight:700;margin-bottom:10px;color:var(--text)}
.card h4{font-size:16px;font-weight:700;margin-bottom:10px;color:var(--text)}
.card .tag-row{display:flex;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.card .tag{padding:3px 12px;border-radius:8px;font-family:var(--font-sans);font-size:12px;font-weight:500}
.card .tag.green{background:var(--mars-light);color:var(--mars)}
.card .tag.pink{background:rgba(232,166,189,.2);color:#a0405e}
.card p{color:var(--text-mid);font-size:15px;line-height:1.85;margin-bottom:6px}
.card p:last-child{margin-bottom:0}
.card ul{list-style:none;margin:0}
.card li{padding:5px 0;color:var(--text-mid);font-size:14px;line-height:1.8;display:flex;align-items:flex-start;gap:8px}
.card li::before{content:"·";color:var(--mars);font-weight:700;flex-shrink:0}
.card.pink li::before{color:#a0405e}

/* STAGGER */
.stagger{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.stagger .card:first-child{margin-top:-28px}
.stagger .card:last-child{margin-top:28px}

/* FEATURED — bigger SVG area */
.feat{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;background:linear-gradient(135deg,#fffefb,#fcf7ef);border:1.5px solid rgba(1,132,127,.14);padding:56px 52px;border-radius:var(--radius)}
.feat .feat-visual{display:flex;align-items:center;justify-content:center;min-width:320px}
.feat p{font-size:15px}
.feat .tag-row{margin-top:14px;margin-bottom:14px}

/* TIMELINE — horizontal progress bar */
.tline{position:relative;padding:20px 0 8px}
.tline-track{height:3px;background:linear-gradient(90deg,var(--rose),var(--mars),var(--rose));border-radius:2px;position:relative;margin:0 8%}
.tline-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:16px}
.tnode{text-align:center;padding:0 12px;position:relative}
.tnode::before{content:"";display:block;width:12px;height:12px;border-radius:50%;margin:0 auto 10px;position:relative;z-index:1}
.tnode.green-node::before{background:var(--mars);box-shadow:0 0 12px rgba(1,132,127,.4)}
.tnode.pink-node::before{background:var(--rose);box-shadow:0 0 10px rgba(232,166,189,.5)}
.tnode h4{font-family:var(--font-serif);font-size:15px;font-weight:700;margin-bottom:3px;color:var(--text)}
.tnode .time{font-family:var(--font-sans);font-size:11px;font-weight:500;color:var(--mars);letter-spacing:2px;margin-bottom:4px}
.tnode p{font-size:12px;color:var(--text-light);line-height:1.5}

/* CRAFT-ROW */
.craft-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px;align-items:stretch}
.craft-row .card{display:flex;flex-direction:column;text-align:center}
.craft-row .card:nth-child(1){border-top:3px solid var(--border)}
.craft-row .card:nth-child(2){border-top:3px solid var(--rose);background:linear-gradient(135deg,#fffafb,#fdf5f7)}
.craft-row .card:nth-child(3){background:rgba(1,132,127,0.08);border:1.5px solid var(--mars);box-shadow:0 0 40px rgba(1,132,127,0.12);z-index:2;position:relative;transform:scale(1.05);border-top:3px solid var(--rose)}
.craft-row .card:nth-child(3):hover{transform:scale(1.07)}
.craft-row .card:nth-child(3) .num{color:rgba(1,132,127,.08)}
.craft-row .craft-icon{width:56px;height:56px;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;border-radius:14px;flex-shrink:0}
.craft-row .craft-icon svg{width:28px;height:28px}
.craft-row .card:nth-child(1) .craft-icon{background:var(--mars-light)}
.craft-row .card:nth-child(2) .craft-icon{background:rgba(232,166,189,.2)}
.craft-row .card:nth-child(3) .craft-icon{background:rgba(1,132,127,.15)}
.craft-row .craft-tag{display:inline-block;padding:2px 12px;border-radius:8px;font-family:var(--font-sans);font-size:12px;font-weight:500;margin-bottom:10px;letter-spacing:1px;align-self:center}
.craft-row .card:nth-child(1) .craft-tag,.craft-row .card:nth-child(2) .craft-tag{background:var(--mars-light);color:var(--mars)}
.craft-row .card:nth-child(3) .craft-tag{background:rgba(232,166,189,.25);color:#a0405e}

/* OVERLAP — narrower overlap, padded container */
.overlap{display:grid;grid-template-columns:1fr 1fr;position:relative;padding:0 8px}
.overlap .card:first-child{z-index:2;transform:translateX(8px)}
.overlap .card:last-child{z-index:1;transform:translateX(-8px);margin-top:20px;background:linear-gradient(135deg,#fffefb,#fef7f9);border-color:rgba(232,166,189,.2)}
.overlap ul{list-style:none}
.overlap li{padding:5px 0;color:var(--text-mid);font-size:14px;border-bottom:1px solid rgba(232,227,216,.5);display:flex;gap:8px}
.overlap li::before{content:"·";color:var(--mars);font-weight:700;flex-shrink:0}
.overlap li:last-child{border-bottom:none}

/* PROPOSITION BANNER */
.prop-banner{text-align:center;padding:80px 24px;background:linear-gradient(170deg,var(--mars-dark),var(--mars));color:#fff;margin-left:calc(-50vw + 50%);margin-right:calc(-50vw + 50%)}
.prop-banner .sec-tit{color:rgba(255,255,255,.55)}
.prop-banner .sec-tit::before,.prop-banner .sec-tit::after{background:rgba(255,255,255,.2)}
.prop-banner .big{font-family:var(--font-serif);font-size:24px;font-weight:600;line-height:2.3;letter-spacing:3px;max-width:700px;margin:0 auto}
.prop-banner .sub{font-size:14px;color:rgba(255,255,255,.6);margin-top:20px;letter-spacing:1px}

/* GOLDEN */
.golden{text-align:center;padding:64px 0}
.golden .card{border-top:3px solid var(--mars);background:linear-gradient(135deg,#fffefb,#fcfbf5);padding:44px 40px}
.golden p{font-family:var(--font-serif);font-size:18px;font-weight:600;color:var(--text);line-height:2.2;letter-spacing:1px;margin:0}

/* SLOGAN */
.slogan-wrap{text-align:center;padding:80px 24px;background:linear-gradient(135deg,var(--rose-light),rgba(249,210,228,.4),var(--rose-light))}
.slogan-wrap .txt{font-family:var(--font-serif);font-size:28px;font-weight:700;letter-spacing:3px;color:var(--mars-dark)}

/* FOOTER */
.ft{text-align:center;padding:52px 24px;color:var(--text-light);font-size:13px;border-top:1px solid var(--border)}
.ft p{margin-bottom:4px;letter-spacing:.5px}

/* INLINE HIGHLIGHTS */
.mars-hl{color:var(--mars);font-weight:600}
.bold{font-weight:600}
.feat-author{font-size:14px;color:var(--mars);letter-spacing:2px;margin-bottom:16px}
.relay-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);border-top:3px solid var(--mars);padding:20px 28px;text-align:center;margin-top:18px;box-shadow:var(--shadow)}
.relay-card p{font-size:16px;font-weight:600;color:var(--mars);margin:0}
.flow-bg{background:var(--bg-warm);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.ft-year{font-size:11px;color:var(--text-light);margin-top:8px}

/* ANIMATION */
.fade-up{opacity:0;transform:translateY(32px);transition:opacity .75s var(--ease),transform .75s var(--ease)}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* RESPONSIVE */
@media(max-width:768px){
  .stagger,.overlap,.feat,.craft-row{grid-template-columns:1fr}
  .craft-row .card{border-radius:var(--radius)!important;border:1px solid var(--border)!important}
  .craft-row .card:nth-child(2),.craft-row .card:nth-child(3){margin-top:16px;transform:none!important}
  .craft-row .card:nth-child(3):hover{transform:translateY(-4px)!important}
  .craft-row .card:nth-child(3){background:rgba(1,132,127,0.08)!important}
  .feat{gap:24px;padding:36px 28px}
  .stagger .card:first-child,.stagger .card:last-child{margin-top:0}
  .overlap .card:first-child,.overlap .card:last-child{transform:none;margin-top:0}
  .hero h1{font-size:40px;letter-spacing:4px}.hero-sub{font-size:22px}.hero-main{font-size:15px}
  .nav-links{display:none}
  .tline-grid{grid-template-columns:repeat(2,1fr);gap:12px}.tnode::before{display:none}
  .prop-banner .big{font-size:18px}.slogan-wrap .txt{font-size:22px}
  .section-pad{padding:44px 0}.w{padding:0 20px}
  .card li{white-space:normal}
}