:root{--bg:#F4FAFC;--surface:#fff;--soft:#E7F3F6;--title:#0E3A46;--text:#24505A;--muted:#4A7380;--aux:#7A9AA4;--brand:#1A7F8F;--bright:#2BB3C4;--deep:#0F5B68;--pale:#D7EEF2;--line:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}body.is-locked{overflow:hidden}
a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.site-top{position:fixed;top:0;left:0;right:0;z-index:70}.tide-line{height:22px;background:var(--title);color:#fff;font-size:12px}.tide-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.plain-btn{border:0;background:transparent;color:#fff;height:22px;padding:0 4px}.lighthouse-bar{height:68px;background:#fff;border-bottom:1px solid var(--line)}.lighthouse-inner{height:68px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand{justify-self:start;display:flex;align-items:center;min-height:44px}.brand img{display:block;max-height:36px;max-width:190px;width:auto}.brand strong{font-size:20px;color:var(--title)}.catalog-open{justify-self:center;min-width:72px;height:44px;border:1px solid var(--line);background:var(--soft);color:var(--deep);border-radius:12px}.app-link{justify-self:end;display:flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border-radius:12px;background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;font-weight:700}.shore-tabs{height:44px;background:var(--pale);border-bottom:1px solid var(--line)}.shore-inner{height:44px;display:flex;align-items:center;gap:8px}.shore-inner a{padding:5px 10px;border-radius:8px;color:var(--deep)}.shore-inner a.is-current{background:var(--brand);color:#fff}.site-main{padding-top:158px}.hero,.section{padding:28px 0}.hero-media,.media-slot{background:var(--pale);border:1px solid var(--line);border-radius:18px;overflow:hidden}.hero-media{max-height:320px;min-height:180px;display:flex;align-items:center;justify-content:center}.hero-media img{width:100%;height:auto;max-height:320px;object-fit:cover}.media-slot img{width:100%;height:auto;display:block}.eyebrow{font-weight:700;color:var(--brand);letter-spacing:.08em}.hero h1,.page-head h1{font-size:clamp(28px,4vw,32px);line-height:1.25;margin:10px 0;color:var(--title)}h2{color:var(--title);line-height:1.35;font-size:24px}h3{color:var(--title)}p{margin:10px 0}.lead{max-width:860px;color:var(--muted)}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--deep);font-weight:700}.btn.primary{background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;border-color:transparent}.tag-grid,.card-grid,.four-grid,.three-grid,.two-grid{display:grid;gap:16px}.tag-grid{grid-template-columns:repeat(6,1fr)}.card-grid,.three-grid{grid-template-columns:repeat(3,1fr)}.four-grid{grid-template-columns:repeat(4,1fr)}.two-grid{grid-template-columns:repeat(2,1fr)}.tag-card,.card,.longboard,.note-card,.faq-item,.step,.clause{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}.tag-card:nth-child(odd) .tag-no{background:var(--bright)}.tag-card:nth-child(even) .tag-no{background:var(--deep)}.tag-no{display:inline-flex;color:#fff;padding:3px 8px;border-radius:7px;font-size:13px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:16px}.section-head p{max-width:620px;color:var(--muted)}.number-list{counter-reset:item;display:grid;gap:12px}.number-item{display:grid;grid-template-columns:52px 1fr;gap:14px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:14px}.number{font-weight:800;color:var(--brand);font-size:20px}.directory{display:grid;gap:10px}.directory a,.directory div{padding:14px 16px;background:#fff;border-left:4px solid var(--brand);border-radius:0 12px 12px 0}.atlas-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden}.atlas-list article{background:#fff;padding:18px}.frame-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.frame{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}.frame .frame-img{aspect-ratio:16/7;background:linear-gradient(135deg,var(--pale),var(--soft));}.frame p{padding:0 16px 12px}.page-head{padding:32px 0 18px}.content-shell{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:26px;padding-bottom:38px}.article-body{min-width:0}.side-note{background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:18px;align-self:start;position:sticky;top:176px}.article-body section{margin:0 0 22px}.article-body ul{padding-left:1.2em}.quote-note{padding:18px;border-left:4px solid var(--brand);background:var(--soft);border-radius:0 14px 14px 0}.site-footer{background:var(--title);color:#D4E8EC;padding:36px 0 calc(20px + env(safe-area-inset-bottom))}.footer-top{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:26px}.footer-brand img{max-height:34px;max-width:180px;display:block;margin-bottom:10px}.footer-brand strong{display:block;color:#fff;font-size:20px}.footer-brand span{font-size:12px;letter-spacing:.12em}.footer-brand p{max-width:360px}.site-footer h3{color:#fff;margin:0 0 8px}.site-footer a{display:block;padding:3px 0;color:#D4E8EC}.footer-copy{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:18px;font-size:14px}.overlay{position:fixed;inset:0;background:rgba(5,31,37,.46);z-index:80;opacity:0;pointer-events:none;transition:.18s}.overlay.is-on{opacity:1;pointer-events:auto}.catalog-panel{position:fixed;top:0;bottom:0;left:0;width:360px;max-width:86vw;background:#fff;z-index:90;transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:.22s;overflow-y:auto}.catalog-panel.is-open{transform:none;visibility:visible;pointer-events:auto}.catalog-head{position:sticky;top:0;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line);z-index:2}.catalog-brand{display:flex;align-items:center;gap:10px}.catalog-brand img{max-height:30px;max-width:130px}.panel-close,.search-close{min-height:44px;border:1px solid var(--line);background:#fff;color:var(--deep);border-radius:10px;padding:0 13px}.catalog-groups{padding:8px 16px 26px}.catalog-groups h2{font-size:16px;margin:18px 0 6px}.catalog-groups a{display:block;padding:10px 8px;border-radius:10px}.catalog-groups a:hover{background:var(--soft)}.catalog-groups b,.catalog-groups span{display:block}.catalog-groups span{font-size:13px;color:var(--muted)}.search-layer{position:fixed;z-index:95;top:90px;left:50%;width:min(720px,calc(100% - 32px));transform:translate(-50%,-16px);visibility:hidden;opacity:0;pointer-events:none;transition:.18s}.search-layer.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%,0)}.search-card{background:#fff;border:1px solid var(--line);padding:18px;box-shadow:var(--shadow)}.search-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.search-card label{display:block;color:var(--deep);margin-bottom:7px}.search-card input{width:100%;min-height:48px;border:1px solid var(--line);border-radius:10px;padding:0 14px;color:var(--text);background:#fff}.preset-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.preset-links a{padding:8px 10px;background:var(--soft);border-radius:8px;color:var(--deep)}.mobile-bottom{display:none}a:hover{color:var(--brand)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(43,179,196,.35);outline-offset:2px}
@media(max-width:900px){.tag-grid{grid-template-columns:repeat(3,1fr)}.four-grid{grid-template-columns:repeat(2,1fr)}.content-shell{grid-template-columns:1fr}.side-note{position:static}.footer-top{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:1/-1}.frame-grid{grid-template-columns:1fr 1fr}}
@media(max-width:700px){body{padding-bottom:calc(50px + env(safe-area-inset-bottom))}.shore-tabs{display:none}.site-main{padding-top:90px}.lighthouse-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand{min-width:0}.brand img{max-width:132px;max-height:32px}.brand strong{font-size:17px;white-space:nowrap}.catalog-open{min-width:60px;padding:0 10px}.app-link{padding:0 10px;font-size:14px}.hero,.section{padding:22px 0}.tag-grid,.card-grid,.three-grid,.two-grid,.four-grid{grid-template-columns:1fr}.frame-grid{grid-template-columns:1fr}.section-head{display:block}.footer-top{grid-template-columns:1fr 1fr;gap:22px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:60;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#fff;border-top:1px solid var(--line)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-width:0;height:50px;font-size:13px;color:var(--deep)}.mobile-bottom a.is-current{background:var(--brand);color:#fff}.search-layer{top:0;left:0;right:0;bottom:0;width:100%;transform:none;background:var(--soft);padding:18px 16px;overflow-y:auto}.search-layer.is-open{transform:none}.search-card{margin-top:72px;border-radius:0}.catalog-panel{width:86vw}.site-footer{padding-bottom:24px}.hero-media{min-height:150px}.number-item{grid-template-columns:40px 1fr}}
@media(max-width:420px){.wrap{width:calc(100% - 32px)}.lighthouse-inner{gap:5px}.brand img{max-width:105px}.brand strong{font-size:16px}.catalog-open{min-width:54px}.app-link{padding:0 8px}.footer-top{grid-template-columns:1fr}}