:root{--bg:#f7f4ed;--paper:#fffdf8;--ink:#22332e;--muted:#6b746e;--line:#d8cfbf;--green:#315c4f;--gold:#b8843d;--blue:#36516b}
*{box-sizing:border-box} body{margin:0;background:var(--bg);color:var(--ink);font-family:"Songti SC","Noto Serif CJK SC",serif;line-height:1.72} a{color:inherit;text-decoration:none} .topbar{position:sticky;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;padding:16px 5vw;background:rgba(247,244,237,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.brand{font-weight:800;letter-spacing:.04em}.topbar nav{display:flex;gap:18px;font-family:"PingFang SC",sans-serif;color:var(--muted);font-size:14px}main{width:min(1180px,90vw);margin:0 auto;padding:44px 0 72px}.hero{display:grid;grid-template-columns:1.5fr .85fr;gap:36px;align-items:stretch;padding:54px 0}.hero h1{font-size:clamp(52px,8vw,98px);line-height:.95;margin:14px 0}.lead{font-size:21px;color:#46554e;max-width:760px}.eyebrow{font-family:"PingFang SC",sans-serif;font-size:12px;text-transform:uppercase;letter-spacing:.16em;color:var(--gold);font-weight:700}.hero-panel,.panel,.card,.deep-card,.sidebar,.plate-detail{background:var(--paper);border:1px solid var(--line);border-radius:24px;box-shadow:0 18px 50px rgba(42,32,17,.07)}.hero-panel{padding:28px}.button{display:inline-flex;padding:12px 18px;margin-right:10px;border-radius:999px;background:var(--green);color:white;font-family:"PingFang SC",sans-serif}.button.secondary{background:transparent;color:var(--green);border:1px solid var(--green)}section{margin:42px 0}h1,h2,h3{line-height:1.2}h2{font-size:28px}.route-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.route-grid div{padding:18px;border-radius:18px;background:#e8eee8;text-align:center;font-weight:700}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{display:block;padding:24px;transition:.18s transform,.18s box-shadow}.card:hover{transform:translateY(-3px);box-shadow:0 22px 60px rgba(42,32,17,.1)}.chapter-card small{color:var(--muted);font-family:"PingFang SC",sans-serif}.concept-grid{grid-template-columns:repeat(4,1fr)}.plate-band{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.plate-mini,.side-plate{display:block;background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:10px;font-family:"PingFang SC",sans-serif;color:var(--muted)}.plate-mini img,.side-plate img,.plate-card img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#f3efe6;border-radius:14px;padding:6px}.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px}.content>section{margin:30px 0}.panel{padding:24px}.tag-row{display:flex;flex-wrap:wrap;gap:10px}.tag{display:inline-flex;padding:8px 12px;border-radius:999px;background:#e8eee8;color:#2b5548;font-family:"PingFang SC",sans-serif;font-size:14px;margin:4px}.deep-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.deep-card{padding:22px}.deep-card blockquote{margin:14px 0 0;padding-left:14px;border-left:4px solid var(--gold);color:#5e625d}.sidebar{position:sticky;top:86px;align-self:start;padding:20px}.side-plate{margin-bottom:14px}.two{display:grid;grid-template-columns:1fr 1fr;gap:18px}.path{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}.path a{padding:10px 14px;border-radius:14px;background:#eef2ea;color:#2f574a;font-family:"PingFang SC",sans-serif}.plate-grid{grid-template-columns:repeat(4,1fr)}.plate-card{padding:14px}.plate-detail{padding:18px}.plate-detail img{width:100%;max-height:620px;object-fit:contain;background:#f3efe6;border-radius:18px}table{width:100%;border-collapse:collapse;background:var(--paper);border:1px solid var(--line);border-radius:20px;overflow:hidden}th,td{padding:16px;border-bottom:1px solid var(--line);text-align:left}th{background:#ece7dc;font-family:"PingFang SC",sans-serif}
@media (max-width:900px){.hero,.layout{grid-template-columns:1fr}.grid,.concept-grid,.plate-grid{grid-template-columns:1fr}.plate-band,.route-grid{grid-template-columns:repeat(2,1fr)}.sidebar{position:static}.deep-grid,.two{grid-template-columns:1fr}.topbar{align-items:flex-start;gap:10px;flex-direction:column}}