:root{--bg:#F4F1F8;--deep:#E4DEEC;--paper:#FBF8FF;--sub:#EEE8F4;--ink:#161418;--text:#2A242C;--muted:#5A5460;--soft:#7A7480;--blue:#4A8AB8;--pink:#C46A8A;--green:#6A9A48;--gold:#C4A04A;--purple:#6A4A9A;--line:rgba(22,20,24,.12);--strong:rgba(106,74,154,.45);--shadow:0 12px 28px rgba(22,20,24,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.site-head{position:fixed;z-index:80;left:0;right:0;top:0}.jiu-edge{height:20px;background:var(--ink);color:var(--gold);display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 960px)/2));font-size:12px}.text-btn{border:0;background:transparent;color:inherit;cursor:pointer}.color-head{height:54px;background:rgba(251,248,255,.98);border-bottom:1px solid var(--strong);display:flex;align-items:center;justify-content:space-between;padding:0 max(16px,calc((100vw - 960px)/2))}.brand{font-size:16px;font-weight:800;display:flex;align-items:center;min-height:44px}.logo-img{height:24px;max-width:156px;object-fit:contain;object-position:center}.head-actions{display:flex;align-items:center;gap:8px}.head-link,.menu-btn,.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 16px;border-radius:10px;font-size:14px}.head-link{border:1px solid var(--purple);background:var(--paper)}.menu-btn{border:0;background:linear-gradient(135deg,var(--blue),var(--pink) 50%,var(--purple));color:var(--paper);cursor:pointer}.fan-nav{height:44px;background:rgba(251,248,255,.98);display:flex;align-items:center;justify-content:center;gap:14px;border-bottom:1px solid var(--line)}.fan-link{width:72px;height:30px;position:relative;display:flex;align-items:center;justify-content:center;font-size:13px}.fan-mark{position:absolute;inset:4px 0;border:1px solid var(--blue);border-radius:50% 50% 6px 6px/75% 75% 6px 6px}.fan-link span:last-child{position:relative;z-index:1}.fan-link.is-current .fan-mark{background:var(--purple);border-color:var(--purple)}.fan-link.is-current{color:var(--paper)}.site-main{padding:146px 16px 64px}.wrap{max-width:960px;margin:0 auto}.hero{padding:44px 0 28px}.fan-index{display:flex;gap:8px;margin-bottom:18px}.fan-chip{border:1px solid var(--blue);border-radius:10px 10px 4px 4px;padding:8px 12px;background:var(--paper);font-size:13px}.hero h1,.page-title{font-size:24px;line-height:1.3;color:var(--ink);margin:0 0 14px}.lead{font-size:17px;color:var(--purple);margin:0 0 10px;font-weight:700}.intro{max-width:760px}.btn{background:linear-gradient(135deg,var(--blue),var(--pink) 50%,var(--purple));color:var(--paper);margin-top:14px}.btn.secondary{background:var(--paper);border:1px solid var(--purple);color:var(--ink)}.section{max-width:960px;margin:0 auto 22px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:24px}.section h2{font-size:20px;color:var(--ink);margin:0 0 12px}.section h3{font-size:16px;color:var(--ink);margin:0 0 8px}.image-slot{background:var(--paper);border:1px dashed var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}.image-slot img{width:100%;height:100%;object-fit:contain;object-position:center}.fan-cut{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:24px;align-items:center}.fan-cut .image-slot{height:176px;border-radius:50% 50% 12px 12px/70% 70% 12px 12px}.triple-narrow{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.narrow-card{background:var(--sub);border:1px solid var(--line);padding:18px;border-radius:10px}.narrow-card .image-slot{height:132px;margin:-6px -6px 12px}.fold-pages{display:grid;grid-template-columns:1fr 1fr;gap:0}.fold{padding:22px;background:linear-gradient(90deg,var(--paper),var(--sub));border:1px solid var(--line)}.fold:first-child{border-radius:12px 0 0 12px}.fold:last-child{border-radius:0 12px 12px 0;border-left:0}.fold .image-slot{height:150px;margin-bottom:12px}.two-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}.info-card{padding:20px;border:1px solid var(--line);background:var(--paper);border-radius:12px}.info-card .image-slot{height:150px;margin-bottom:12px}.periods{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.period{padding:18px;background:var(--sub);border-radius:10px;border-top:4px solid var(--purple)}.status-list{display:grid;gap:10px}.status-row{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}.status{font-weight:700;color:var(--purple)}.wrap-text{display:grid;grid-template-columns:1fr 220px;gap:22px;align-items:start}.wrap-text .image-slot{height:300px}.icon-line{display:flex;align-items:center;gap:12px}.icon-line .image-slot{width:56px;height:56px}.method-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.method-grid article,.term{padding:18px;border-left:4px solid var(--blue);background:var(--sub)}.topic-list{display:grid;gap:12px}.topic-list article{padding:18px;background:var(--sub);border-radius:10px}.center-card{max-width:720px;margin:0 auto;text-align:center}.memo-list{display:grid;gap:10px}.memo-list li{background:var(--sub);padding:14px 16px;border-radius:8px}.banner-slot{height:200px;margin-bottom:20px}.single-col article{padding:18px 0;border-bottom:1px solid var(--line)}.terms{display:grid;gap:14px}.faq-list{display:grid;gap:12px}.faq-item{padding:18px;background:var(--sub);border-radius:10px}.faq-item h3{margin-bottom:8px}.footer-brand{max-width:960px;margin:0 auto;display:flex;align-items:center;gap:12px}.footer-brand div{display:grid}.footer-brand span{font-size:12px;color:var(--gold)}.site-footer{background:var(--ink);color:var(--bg);border-top:1px solid var(--gold);padding:30px 16px 78px;font-size:13px}.footer-groups{max-width:960px;margin:22px auto;display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-groups h3{font-size:14px;color:var(--gold);margin:0 0 8px}.footer-groups a{display:block;margin:5px 0;color:var(--bg)}.footer-note,.copyright{max-width:960px;margin:10px auto;color:#d8d1dd}.overlay{position:fixed;inset:0;background:rgba(22,20,24,.44);z-index:90;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.open{opacity:1;visibility:visible;pointer-events:auto}.side-panel{position:fixed;z-index:100;left:0;top:74px;width:28%;max-width:380px;height:min(78vh,700px);background:var(--paper);border-right:1px solid var(--strong);border-bottom:1px solid var(--strong);transform:translateX(-103%);visibility:hidden;pointer-events:none;transition:.25s;box-shadow:var(--shadow)}.side-panel.open{transform:translateX(0);visibility:visible;pointer-events:auto}.panel-top{height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--line)}.panel-brand{display:flex;align-items:center;gap:10px}.close-btn{min-height:40px;border:1px solid var(--line);background:var(--paper);border-radius:8px;cursor:pointer}.panel-scroll{height:calc(100% - 56px);overflow:auto;padding:12px 16px}.panel-scroll section{margin-bottom:14px}.panel-scroll h3{font-size:14px;color:var(--purple);margin:4px 0 6px}.panel-scroll a{display:grid;padding:8px 0;border-bottom:1px solid var(--line)}.panel-scroll span{font-size:12px;color:var(--muted)}.search-layer{position:fixed;z-index:101;left:50%;top:74px;transform:translateX(-50%) translateY(-12px);width:min(640px,calc(100% - 32px));background:var(--paper);border:1px solid var(--strong);box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-layer.open{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}.search-box{padding:20px}.search-top{display:flex;align-items:center;justify-content:space-between}.search-presets{display:flex;flex-wrap:wrap;gap:8px}.search-presets a{border:1px solid var(--purple);padding:8px 12px;border-radius:8px}.mobile-nav{display:none}.page-shell{max-width:960px;margin:0 auto}.page-shell>.page-title{margin-top:20px}.page-intro{margin:0 0 20px;color:var(--muted)}a:focus-visible,button:focus-visible{outline:3px solid var(--gold);outline-offset:2px}.head-link:hover,.fan-chip:hover,.search-presets a:hover{background:var(--sub)}.btn:hover{filter:brightness(1.04)}
@media(max-width:760px){.fan-nav{display:none}.site-main{padding-top:92px;padding-bottom:76px}.color-head{padding:0 16px}.jiu-edge{padding:0 16px}.head-link,.menu-btn{padding:0 12px}.side-panel{top:74px;width:88%;max-width:none;height:min(78vh,680px)}.search-layer{inset:20px 0 auto 0;transform:none;width:100%;height:calc(100vh - 20px);background:var(--ink);color:var(--gold);border:0}.search-layer.open{transform:none}.search-box{padding:24px 16px}.search-layer .close-btn,.search-layer .search-presets a{color:var(--gold);border-color:var(--gold);background:transparent}.mobile-nav{position:fixed;z-index:85;display:grid;grid-template-columns:repeat(4,1fr);left:0;right:0;bottom:0;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:var(--paper);border-top:1px solid var(--line)}.mobile-nav a{display:flex;align-items:center;justify-content:center;min-height:48px}.mobile-nav a.is-current{background:var(--purple);color:var(--paper)}.site-footer{padding-bottom:88px}.fan-cut,.wrap-text{grid-template-columns:1fr}.triple-narrow,.periods,.two-cards,.method-grid,.footer-groups{grid-template-columns:1fr}.fold-pages{grid-template-columns:1fr}.fold:first-child,.fold:last-child{border-radius:12px}.fold:last-child{border-left:1px solid var(--line);border-top:0}.wrap-text .image-slot{height:280px}.status-row{grid-template-columns:1fr;gap:4px}.section{padding:20px 16px}.hero{padding-top:26px}.banner-slot{height:180px}}