:root{--bg:#F4FAFC;--white:#FFFFFF;--soft:#E7F3F6;--title:#0E3A46;--text:#24505A;--muted:#4A7380;--quiet:#7A9AA4;--brand:#1A7F8F;--bright:#2BB3C4;--deep:#0F5B68;--pale:#D7EEF2;--line:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08);--radius:18px;--top:106px}
*{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","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.8;overflow-x:hidden}body.modal-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}img{max-width:100%;height:auto;display:block}.skip-link{position:fixed;left:16px;top:-80px;z-index:999;background:var(--deep);color:#fff;padding:10px 16px;border-radius:10px}.skip-link:focus{top:12px}
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(244,250,252,.96);backdrop-filter:blur(12px)}.harbor-bar{height:58px;background:var(--pale);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 max(16px,calc((100vw - 1200px)/2));border-bottom:1px solid var(--line)}.round-action{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--deep);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;font-size:22px}.brand-center{justify-self:center;height:44px;min-width:150px;display:flex;align-items:center;justify-content:center;color:var(--title);font-weight:800;letter-spacing:.08em}.brand-center img{max-height:34px;width:auto}.harbor-actions{justify-self:end;display:flex;align-items:center;gap:10px}.app-link,.btn-primary{min-height:44px;padding:0 20px;border-radius:999px;background:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:700}.dock-nav{height:48px;background:#fff;border-bottom:1px solid var(--line)}.dock-inner{max-width:1200px;margin:0 auto;height:100%;display:flex;align-items:center;justify-content:center;gap:36px}.dock-nav a{height:100%;display:flex;align-items:center;position:relative;color:var(--muted)}.dock-nav a.active,.dock-nav a:hover{color:var(--brand)}.dock-nav a.active:after{content:"";position:absolute;left:18%;right:18%;bottom:0;height:3px;border-radius:3px;background:var(--brand)}
.site-main{padding-top:calc(var(--top) + 28px)}.wrap{max-width:1200px;margin:0 auto;padding:0 20px}.section{padding:42px 0}.section-tight{padding:26px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:14px;font-weight:800;letter-spacing:.08em}.eyebrow:before{content:"";width:20px;height:2px;background:var(--brand)}h1,h2,h3{color:var(--title);line-height:1.28;margin-top:0}h1{font-size:clamp(28px,4vw,32px);margin-bottom:18px}h2{font-size:clamp(22px,3vw,26px);margin-bottom:16px}h3{font-size:19px;margin-bottom:8px}p{margin:0 0 16px}.lead{font-size:18px;color:var(--muted);max-width:760px}.hero-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:clamp(24px,4vw,44px);box-shadow:var(--shadow)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.btn-secondary{min-height:44px;padding:0 20px;border-radius:999px;background:#fff;color:var(--deep);border:1px solid var(--line);display:inline-flex;align-items:center;font-weight:700}.hero-media{margin-top:28px;border-radius:18px;overflow:hidden;max-height:340px;background:var(--soft)}.hero-media img{width:100%;max-height:340px;object-fit:cover}.media-placeholder{width:100%;min-height:220px;border-radius:16px;background:linear-gradient(145deg,#D7EEF2,#EAF6F8 48%,#C9E8ED);position:relative;overflow:hidden}.media-placeholder:after{content:"";position:absolute;width:42%;height:42%;right:-6%;bottom:-15%;border-radius:50%;background:rgba(43,179,196,.16)}
.grid-2,.grid-3,.grid-4,.grid-6{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.grid-6{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 9px 24px rgba(14,58,70,.05)}.card a.more{color:var(--brand);font-weight:700}.card-media{margin:-22px -22px 18px;border-radius:18px 18px 14px 14px;overflow:hidden}.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover}.card-media .media-placeholder{border-radius:0;min-height:170px}.soft-band{background:var(--soft);border-block:1px solid var(--line)}.split-card{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px}.split-card .media-placeholder,.split-card img{min-height:260px;max-height:330px;object-fit:cover;border-radius:16px;width:100%}.number-list{display:grid;gap:12px;margin-top:22px}.number-item{display:grid;grid-template-columns:54px 1fr;gap:14px;padding:18px;border-radius:16px;background:#fff;border:1px solid var(--line)}.number-item b{font-size:24px;color:var(--brand)}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0}.tag{display:inline-flex;align-items:center;min-height:34px;padding:0 12px;border-radius:999px;background:var(--pale);color:var(--deep);font-size:14px;font-weight:700}.article-body{max-width:880px}.article-body p{margin-bottom:18px}.article-body h2{margin-top:34px}.quote-note{padding:20px 22px;border-left:4px solid var(--brand);background:var(--soft);border-radius:0 14px 14px 0;color:var(--deep)}.chapter-list{display:grid;gap:16px}.chapter{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.chapter h2{display:flex;gap:10px;align-items:center}.chapter h2 span{width:34px;height:34px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--pale);font-size:14px;color:var(--deep)}.photo-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.photo-strip figure{margin:0}.photo-strip .media-placeholder,.photo-strip img{aspect-ratio:16/10;object-fit:cover;border-radius:14px}.photo-strip figcaption{font-size:14px;color:var(--muted);padding-top:8px}.notice{background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:18px;color:var(--deep)}
.site-footer{margin-top:52px;background:#0E3A46;color:#D4E8EC;padding:48px 0 calc(36px + env(safe-area-inset-bottom))}.footer-inner{max-width:1200px;margin:0 auto;padding:0 20px}.footer-brand{display:grid;grid-template-columns:280px 1fr;gap:28px;padding-bottom:32px;border-bottom:1px solid rgba(212,232,236,.16)}.footer-logo-wrap{display:flex;align-items:center;gap:14px}.footer-logo-wrap img{max-height:32px;width:auto}.footer-logo-wrap span{display:flex;flex-direction:column}.footer-logo-wrap strong{color:#fff;font-size:18px}.footer-logo-wrap small{font-size:12px;letter-spacing:.16em}.footer-groups{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding:34px 0}.footer-groups h2{color:#fff;font-size:16px;margin-bottom:10px}.footer-groups a{display:block;color:#D4E8EC;padding:5px 0}.footer-groups a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(212,232,236,.16);padding-top:22px;display:flex;flex-wrap:wrap;gap:14px 22px;color:#AFCED4;font-size:14px}.footer-bottom span{margin-right:auto}
.overlay{position:fixed;inset:0;background:rgba(14,58,70,.45);z-index:180;visibility:hidden;opacity:0;pointer-events:none;transition:.2s}.overlay.is-open{visibility:visible;opacity:1;pointer-events:auto}.modal-card{position:fixed;left:50%;top:50%;transform:translate(-50%,-47%);z-index:190;background:#fff;border-radius:20px;box-shadow:0 24px 70px rgba(14,58,70,.24);visibility:hidden;opacity:0;pointer-events:none;transition:.22s;max-height:84vh;overflow:auto}.modal-card.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:translate(-50%,-50%)}.sea-menu{width:min(760px,92vw);padding:24px}.search-layer{width:min(620px,92vw);padding:24px}.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;padding-bottom:18px;border-bottom:1px solid var(--line)}.modal-brand{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:800;color:var(--title)}.modal-brand img{max-height:30px;width:auto}.close-button{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--deep);font-size:26px;line-height:1;cursor:pointer}.sea-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:22px}.sea-group h2{font-size:16px;color:var(--brand);margin-bottom:8px}.sea-group a{display:block;padding:10px 0;border-bottom:1px dashed var(--line)}.sea-group a strong{display:block;color:var(--title);font-size:15px}.sea-group a span{display:block;color:var(--muted);font-size:13px;line-height:1.55;margin-top:3px}.search-look{margin:22px 0;background:var(--soft);border:1px solid var(--line);border-radius:999px;min-height:48px;padding:0 18px;display:flex;align-items:center;gap:10px;color:var(--muted)}.preset-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.preset-links a{min-height:48px;display:flex;align-items:center;padding:0 16px;border-radius:14px;border:1px solid var(--line);color:var(--deep);font-weight:700}.mobile-bottom{display:none}
a:focus-visible,button:focus-visible{outline:3px solid rgba(43,179,196,.45);outline-offset:3px}.app-link:hover,.btn-primary:hover{filter:saturate(1.08) brightness(.98)}.btn-secondary:hover,.card:hover{border-color:rgba(26,127,143,.32)}
@media(max-width:900px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3,.grid-6{grid-template-columns:repeat(2,1fr)}.split-card{grid-template-columns:1fr}.photo-strip{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-template-columns:1fr}.footer-groups{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){:root{--top:58px}.harbor-bar{padding:0 16px}.dock-nav{display:none}.search-button{display:none}.brand-center{min-width:0;max-width:44vw}.brand-center img{max-width:100%;height:auto}.harbor-actions{gap:0}.app-link{padding:0 14px;min-width:76px}.site-main{padding-top:calc(var(--top) + 22px);padding-bottom:66px}.wrap{padding:0 16px}.section{padding:30px 0}.hero-card{padding:22px}.grid-2,.grid-3,.grid-4,.grid-6{grid-template-columns:1fr}.photo-strip{grid-template-columns:1fr 1fr}.sea-grid{grid-template-columns:1fr}.modal-card{max-height:88vh}.footer-groups{grid-template-columns:1fr 1fr;gap:20px}.footer-bottom span{width:100%}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:140;height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(5,1fr)}.mobile-bottom a{min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;color:var(--muted);font-size:12px;line-height:1.15}.mobile-bottom a span{font-size:16px}.mobile-bottom a.active{color:var(--brand);font-weight:800}.overlay{z-index:180}.modal-card{z-index:190}}
@media(max-width:380px){.app-link{padding:0 10px;min-width:68px;font-size:14px}.round-action{width:44px}.brand-center{font-size:15px}.photo-strip{grid-template-columns:1fr}.footer-groups{grid-template-columns:1fr}}

.extra-note{margin-top:18px}.app-title-row{display:flex;align-items:center;gap:14px;margin-bottom:10px}.app-title-row h2{margin-bottom:0}.app-icon,.app-icon.media-placeholder{width:56px;height:56px;min-height:56px;flex:0 0 56px;border-radius:14px;object-fit:cover}