:root{--bg:#D7E4E6;--bg-deep:#C4D4D6;--paper:#F3F7F7;--soft:#E4EEEF;--ink:#1E2C2E;--text:#2A3A3C;--muted:#4A6064;--sub:#6A8084;--teal:#4A8A8C;--sand:#C4A070;--line:rgba(30,44,46,.14);--line2:rgba(74,138,140,.42);--shadow:0 12px 28px rgba(30,44,46,.08);--radius:8px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}.wrap{width:min(980px,calc(100% - 32px));margin:auto}.top-rail{position:fixed;inset:0 0 auto 0;height:20px;background:var(--ink);color:var(--paper);z-index:60;font-size:12px}.top-rail-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.text-button{border:0;background:transparent;color:inherit;height:20px;padding:0 6px;cursor:pointer}.site-head{position:fixed;top:20px;left:0;right:0;height:54px;background:var(--paper);border-bottom:1px solid var(--line2);z-index:60}.head-inner{height:54px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;color:var(--ink);text-decoration:none;font-size:16px;min-height:44px}.brand img,.footer-brand img,.drawer-brand img{height:24px;width:auto;max-width:180px;object-fit:contain;object-position:center}.head-actions{display:flex;gap:8px;align-items:center}.app-link,.drawer-toggle{height:40px;min-width:78px;padding:0 14px;border-radius:7px;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-size:14px}.app-link{background:linear-gradient(135deg,#4A8A8C 0%,#1E2C2E 100%);color:var(--paper)}.drawer-toggle{border:1px solid var(--teal);background:var(--paper);color:var(--ink);cursor:pointer}.nav-strip{position:fixed;top:74px;left:0;right:0;background:var(--soft);border-bottom:1px solid var(--line);z-index:50}.nav-stack{display:flex;flex-direction:column;align-items:flex-start;padding:8px 0}.nav-stack a{height:34px;display:flex;align-items:center;color:var(--ink);text-decoration:none;padding:0 14px;border-left:3px solid transparent}.nav-stack a.active{border-left-color:var(--teal);font-weight:700}.site-main{padding-top:230px;min-height:70vh}.page{padding-bottom:56px}.hero{background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:var(--radius);padding:28px}.eyebrow{font-size:13px;color:var(--teal);letter-spacing:.08em}.short-index{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.short-index a{color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line2)}h1{font-size:24px;line-height:1.3;margin:8px 0 10px;color:var(--ink)}h2{font-size:20px;line-height:1.35;margin:0 0 12px;color:var(--ink)}h3{font-size:16px;line-height:1.4;margin:0 0 8px;color:var(--ink)}p{margin:0 0 14px}.lead{font-size:17px;color:var(--ink);font-weight:700}.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{height:42px;padding:0 18px;border-radius:7px;display:inline-flex;align-items:center;text-decoration:none;font-size:14px}.btn.primary{background:linear-gradient(135deg,#4A8A8C 0%,#1E2C2E 100%);color:var(--paper)}.btn.secondary{background:var(--paper);border:1px solid var(--teal);color:var(--ink)}.section{margin-top:20px}.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}.news-col{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.image-slot{background:var(--soft);display:flex;align-items:center;justify-content:center;border-radius:7px;min-height:120px;margin:12px 0}.image-slot.tall{min-height:260px;max-height:320px}.image-slot.banner{height:200px}.image-slot img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain;object-position:center}.walk-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.walk-card,.note-card,.center-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:18px}.page-sheets{display:grid;grid-template-columns:1fr 1fr;gap:18px}.sheet{background:var(--paper);border:1px solid var(--line);padding:24px;border-radius:var(--radius);transform:rotate(-.15deg)}.status-list{display:grid;gap:10px}.status-item{display:grid;grid-template-columns:140px 1fr;gap:16px;align-items:start;background:var(--paper);border-left:4px solid var(--teal);padding:16px;border-radius:6px}.memo-list{display:grid;gap:10px}.memo-list article{background:var(--paper);border:1px solid var(--line);padding:18px;border-radius:var(--radius)}.topic-list{display:grid;gap:12px}.topic-list article{background:var(--paper);border:1px solid var(--line);padding:20px;border-radius:var(--radius)}.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.center-stack{max-width:760px;margin:auto}.center-card{text-align:center}.terms section{background:var(--paper);border-left:3px solid var(--teal);padding:18px 20px;margin-bottom:14px;border-radius:0 var(--radius) var(--radius) 0}.app-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:center}.faq-list details{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;margin-bottom:10px}.faq-list summary{font-weight:700;color:var(--ink);cursor:pointer}.faq-list p{margin-top:12px}.site-footer{background:#162022;color:#D7E4E6;border-top:1px solid var(--teal);padding:34px 0 70px}.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:22px}.footer-brand strong{color:#F3F7F7}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-grid h3{color:#F3F7F7}.footer-grid a{display:block;color:#D7E4E6;text-decoration:none;padding:3px 0}.footer-note,.footer-copy{font-size:13px;color:#D7E4E6;margin-top:20px}.overlay{position:fixed;inset:0;background:rgba(22,32,34,.45);z-index:80;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.overlay.show{opacity:1;visibility:visible;pointer-events:auto}.drawer{position:fixed;left:16px;bottom:18px;width:360px;max-width:88%;max-height:480px;background:var(--paper);z-index:90;border:1px solid var(--line2);box-shadow:var(--shadow);border-radius:10px;transform:translateY(120%);visibility:hidden;pointer-events:none;transition:.25s;overflow:auto}.drawer.open{transform:translateY(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;background:var(--paper);display:flex;justify-content:space-between;align-items:center;padding:14px;border-bottom:1px solid var(--line);z-index:2}.drawer-brand{display:flex;align-items:center;gap:8px}.drawer-head button,.search-close{min-width:64px;height:40px;border:1px solid var(--teal);background:var(--paper);color:var(--ink);border-radius:7px}.drawer-groups{padding:8px 14px 16px}.drawer-groups h2{font-size:14px;margin:12px 0 6px}.drawer-groups a{display:block;text-decoration:none;color:var(--ink);padding:8px;border-radius:6px}.drawer-groups a:hover{background:var(--soft)}.drawer-groups a span{display:block;color:var(--muted);font-size:12px}.search-panel{position:fixed;top:74px;left:0;right:0;z-index:90;visibility:hidden;pointer-events:none}.search-panel.open{visibility:visible;pointer-events:auto}.search-card{width:min(760px,calc(100% - 32px));margin:auto;background:var(--paper);border:1px solid var(--line2);border-radius:0 0 10px 10px;box-shadow:var(--shadow);padding:20px;position:relative}.search-close{position:absolute;right:20px;top:20px}.search-links{display:flex;gap:8px;flex-wrap:wrap}.search-links a{height:40px;padding:0 14px;display:inline-flex;align-items:center;border:1px solid var(--teal);border-radius:6px;text-decoration:none;color:var(--ink)}.mobile-bottom{display:none}.locked{overflow:hidden}a:focus-visible,button:focus-visible{outline:3px solid var(--sand);outline-offset:2px}a:hover{opacity:.86}.muted{color:var(--muted)}.tag{display:inline-block;padding:3px 8px;border-radius:99px;background:var(--soft);color:var(--muted);font-size:12px}.spaced> *+*{margin-top:14px}
@media(max-width:720px){.wrap{width:calc(100% - 32px)}.nav-strip{display:none}.site-main{padding-top:96px;padding-bottom:58px}.head-actions{gap:4px}.app-link,.drawer-toggle{min-width:64px;padding:0 10px}.hero{padding:22px}.two-col,.page-sheets,.method-grid,.app-layout{grid-template-columns:1fr}.walk-row{grid-template-columns:1fr}.status-item{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:88px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:70;height:calc(48px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:var(--paper);border-top:1px solid var(--line2)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;color:var(--ink);text-decoration:none;min-height:48px}.mobile-bottom a.active{background:var(--teal);color:var(--paper)}.drawer{left:6%;bottom:64px;width:88%;max-width:none}.search-panel{top:0;bottom:0;background:var(--ink)}.search-card{width:100%;height:100%;border-radius:0;background:var(--ink);color:var(--paper);padding:88px 16px 24px}.search-card h2{color:var(--paper)}.search-close{top:24px;right:16px;background:var(--paper)}.search-links a{color:var(--paper);border-color:var(--teal)}.image-slot.banner{height:200px}}