:root{--deep:#075b65;--teal:#078b98;--aqua:#1bb8c5;--mint:#dff4ef;--pale:#f4fbf8;--ink:#183b3e;--muted:#5d7778;--line:#cce6df;--gold:#e8b85c;--white:#fff;--shadow:0 8px 22px rgba(16,95,91,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{margin:0;background:linear-gradient(180deg,#eef8f3 0%,#f8fcfa 45%,#eef8f5 100%);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;line-height:1.8;overflow-x:hidden}img,svg{max-width:100%}a{ -webkit-tap-highlight-color:transparent }
.wrap{width:100%;max-width:780px;margin:0 auto;padding:14px 14px 76px;overflow-wrap:anywhere}
.topline{display:flex;align-items:center;justify-content:space-between;gap:10px;color:var(--deep);font-size:12px;font-weight:700;letter-spacing:.04em}.brand{display:flex;align-items:center;gap:8px;min-width:0}.brand span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.drop{width:24px;height:30px;flex:0 0 24px;display:inline-block;background:linear-gradient(150deg,#41d5d8,#087c91);clip-path:path('M12 0 C8 8 1 16 1 21 C1 28 6 30 12 30 C18 30 23 26 23 21 C23 15 16 6 12 0 Z')}
.top-actions a,.source a,.jumpbar a{color:var(--teal);text-decoration:none}
.hero{position:relative;overflow:hidden;margin-top:14px;padding:24px 20px 22px;border-radius:24px;background:linear-gradient(135deg,#087e8a,#13aab4 56%,#62d2c9);color:white;box-shadow:0 12px 30px rgba(7,91,101,.14)}.hero:before,.hero:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.28);border-radius:50%;width:300px;height:130px;right:-65px;top:-65px;transform:rotate(-12deg);box-shadow:0 0 0 9px rgba(255,255,255,.045),0 0 0 20px rgba(255,255,255,.035)}.hero:after{width:220px;height:96px;right:-22px;top:-34px}.eyebrow{position:relative;z-index:1;font-size:11px;letter-spacing:.1em;opacity:.9;font-weight:700}.hero h1{position:relative;z-index:1;font-size:clamp(25px,7.5vw,40px);line-height:1.25;margin:10px 0 9px;letter-spacing:.01em}.hero p{position:relative;z-index:1;margin:0;max-width:580px;color:rgba(255,255,255,.94);font-size:15px}.hero .pill{position:relative;z-index:1;display:inline-block;margin-top:15px;padding:6px 12px;border:1px solid rgba(255,255,255,.45);border-radius:99px;font-size:12px;background:rgba(255,255,255,.12)}
.jumpbar{position:relative;z-index:1;display:flex;gap:7px;flex-wrap:wrap;margin-top:14px}.jumpbar a{padding:7px 10px;border-radius:999px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.26);color:#fff;font-size:12px;line-height:1.3}.jumpbar a.active{background:#fff;color:var(--deep);font-weight:700}
.section{margin-top:20px;min-width:0}.section h2{font-size:18px;line-height:1.45;margin:0 0 12px;color:var(--deep);display:flex;align-items:center;gap:10px}.section h2:before{content:"";width:6px;height:22px;flex:0 0 6px;border-radius:6px;background:linear-gradient(var(--aqua),var(--deep))}
.card{min-width:0;padding:17px;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.9);box-shadow:var(--shadow)}.lead{font-size:15px;color:#294d50;margin:0}
.stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:15px}.stat{min-width:0;padding:15px 13px;border-radius:17px;background:rgba(255,255,255,.94);border:1px solid var(--line);box-shadow:0 5px 16px rgba(16,95,91,.045)}.stat strong{display:block;font-size:clamp(22px,6.5vw,31px);line-height:1.15;color:var(--teal);font-weight:800;letter-spacing:-.02em;overflow-wrap:anywhere}.stat span{display:block;margin-top:6px;font-size:12px;color:var(--muted);line-height:1.55}
.photo-card{min-width:0;padding:10px;border-radius:20px;background:rgba(255,255,255,.94);border:1px solid var(--line);box-shadow:var(--shadow)}.photo-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:14px}.photo-grid figure{min-width:0;margin:0}.photo-picture{display:block;width:100%;overflow:hidden;border-radius:14px;background:#e5f3ef}.photo{display:block;width:100%;max-width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;border-radius:14px;background:#d7ece6}.photo-picture img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover}.caption{font-size:12px;color:var(--muted);margin:8px 2px 0;line-height:1.65}.caption b{color:var(--deep)}figure .caption{margin-bottom:2px}
.grid2{display:grid;grid-template-columns:minmax(0,1fr);gap:11px}.tag{display:inline-block;padding:4px 9px;border-radius:99px;background:#e0f4ef;color:#08737d;font-size:11px;font-weight:700;margin-bottom:9px}.small{font-size:13px;color:var(--muted);line-height:1.7}
.flow{display:grid;grid-template-columns:minmax(0,1fr);gap:8px}.step{position:relative;min-width:0;padding:12px 14px 12px 48px;border:1px solid #c7e5df;border-radius:14px;background:linear-gradient(100deg,#f9fffc,#eaf8f4)}.step b{position:absolute;left:13px;top:12px;width:25px;height:25px;display:grid;place-items:center;border-radius:50%;background:#0d98a4;color:#fff;font-size:12px}.step strong{display:block;color:var(--deep);font-size:14px}.step span{display:block;font-size:12px;color:var(--muted);margin-top:2px}.arrow{text-align:center;color:#37aeb0;font-size:18px;line-height:1}
.quote{font-size:15px;font-weight:700;color:var(--deep);padding:16px 17px;border-radius:16px;background:linear-gradient(110deg,#e1f6f0,#f6fcf9);border:1px solid var(--line)}.warning{font-size:13px;color:#795d2a;background:#fff7e7;border:1px solid #f1dfb6;border-radius:12px;padding:12px 13px;margin-top:12px;line-height:1.75}.note{padding:15px 16px;border-radius:16px;background:#e8f6f1;border-left:4px solid #16a5a8;font-size:13px;color:#31575a}.mobile-tip{padding:11px 13px;border-radius:14px;background:#edf8f5;color:#356064;font-size:12px;border:1px solid var(--line)}
.diagram{width:100%;display:block;border-radius:16px;border:1px solid var(--line);background:#f7fcfa}.source{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:18px;line-height:1.8}.source ul{padding-left:18px;margin:8px 0}.source li{margin:6px 0}.source a{word-break:break-all}
.case-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin-top:18px}.case-nav a{display:block;min-width:0;padding:12px 10px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--deep);text-decoration:none;font-size:13px;font-weight:700;text-align:center;box-shadow:var(--shadow)}.case-nav a.active{background:var(--deep);color:#fff;border-color:var(--deep)}.back{display:inline-flex;align-items:center;gap:6px;color:var(--deep);font-size:13px;text-decoration:none;font-weight:700;margin-top:16px}.footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:24px;padding-top:15px;border-top:1px solid var(--line);font-size:11px;color:#6c8887}
@media(min-width:620px){.wrap{padding:24px 24px 56px}.hero{padding:32px 30px 28px}.stats{grid-template-columns:repeat(4,minmax(0,1fr))}.photo-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grid2{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.case-nav{grid-template-columns:repeat(4,minmax(0,1fr))}.flow{grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}.step{padding:13px 11px}.step b{position:static;margin-bottom:7px}.arrow{display:none}}
@media(max-width:380px){.wrap{padding-left:11px;padding-right:11px}.hero{padding:21px 16px 19px;border-radius:20px}.hero h1{font-size:25px}.section h2{font-size:17px}.stat{padding:13px 11px}.stat span{font-size:11px}}