:root{
  --mist:#F4FAFC;--white:#FFFFFF;--soft:#E7F3F6;--title:#0E3A46;--text:#24505A;--muted:#4A7380;--aux:#7A9AA4;
  --sea:#1A7F8F;--bright:#2BB3C4;--deep:#0F5B68;--pale:#D7EEF2;--line:rgba(26,127,143,.16);--shadow:0 14px 34px rgba(14,58,70,.08);
  --grad:linear-gradient(135deg,#2BB3C4 0%,#1A7F8F 55%,#0F5B68 100%);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--mist);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:1.72;overflow-x:hidden}body.is-locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.shell{width:min(1180px,calc(100% - 32px));margin:0 auto}.site-header{position:fixed;inset:0 0 auto 0;z-index:50}.mist-line{height:20px;background:var(--title);color:#fff;font-size:12px}.mist-inner{height:20px;display:flex;align-items:center;justify-content:space-between}.mist-brand{color:#fff;letter-spacing:.06em}.text-button{min-width:44px;height:20px;border:0;background:transparent;color:#fff;padding:0 2px}.text-button:focus-visible,.mist-brand:focus-visible{outline:2px solid #fff;outline-offset:1px}.dock-bar{height:62px;background:#fff;border-bottom:1px solid var(--line)}.dock-inner{height:62px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px}.brand-link{display:flex;align-items:center;justify-self:start;min-height:44px}.brand-logo{display:block;max-width:170px;height:34px;object-fit:contain;object-position:left center}.brand-fallback{font-size:21px;font-weight:800;color:var(--title);letter-spacing:.08em}.drawer-trigger,.app-link,.btn{display:inline-flex;min-height:44px;align-items:center;justify-content:center;border-radius:12px;padding:0 18px;font-weight:700}.drawer-trigger{border:1px solid var(--line);background:var(--soft);color:var(--deep);justify-self:center}.app-link{justify-self:end;background:var(--grad);color:#fff}.shell-tabs{height:42px;background:var(--pale);border-bottom:1px solid var(--line)}.tabs-inner{height:42px;display:flex;align-items:center;gap:8px;overflow:hidden}.tabs-inner a{display:inline-flex;align-items:center;min-height:32px;padding:0 12px;color:var(--deep);border-radius:8px;font-size:14px;white-space:nowrap}.tabs-inner a.is-current{background:var(--sea);color:#fff}.site-main{padding-top:124px}.section{padding:46px 0}.section.compact{padding:30px 0}.section-title{margin:0 0 10px;color:var(--title);font-size:26px;line-height:1.25}.eyebrow{margin:0 0 8px;color:var(--sea);font-size:13px;font-weight:800;letter-spacing:.12em}.lead{max-width:760px;margin:0;color:var(--muted)}.hero-slot,.media-slot{display:flex;align-items:center;justify-content:center;background:var(--pale);border:1px solid var(--line);border-radius:18px;overflow:hidden}.hero-slot{max-height:300px;min-height:220px}.hero-slot img{width:100%;max-height:300px;object-fit:contain;object-position:center}.hero-fallback{padding:70px 20px;text-align:center;color:var(--title);font-size:30px;font-weight:800}.hero-copy{padding:28px 0 4px}.hero-copy h1,.page-hero h1{margin:0 0 14px;color:var(--title);font-size:clamp(28px,4vw,32px);line-height:1.25}.hero-kicker{color:var(--sea);font-weight:800;letter-spacing:.12em;margin-bottom:8px}.hero-copy p{max-width:820px;margin:0;color:var(--text)}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.btn.primary{background:var(--grad);color:#fff}.btn.secondary{background:#fff;color:var(--deep);border:1px solid var(--line)}.btn:hover,.drawer-trigger:hover,.app-link:hover{transform:translateY(-1px);box-shadow:var(--shadow)}.btn:focus-visible,.drawer-trigger:focus-visible,.app-link:focus-visible,a:focus-visible,.icon-button:focus-visible{outline:3px solid rgba(43,179,196,.45);outline-offset:3px}.step-stack{display:grid;gap:14px}.step-row{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.step-link{min-height:126px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 10px 24px rgba(14,58,70,.05)}.step-link strong{display:inline-block;margin-bottom:8px;color:var(--title)}.step-link span{display:block;color:var(--muted);font-size:14px}.step-link:nth-child(odd) strong{background:var(--bright);color:#fff;border-radius:7px;padding:2px 8px}.step-link:nth-child(even) strong{background:var(--deep);color:#fff;border-radius:7px;padding:2px 8px}.number-list{display:grid;gap:12px;margin-top:24px}.number-item{display:grid;grid-template-columns:48px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px}.number-item .num{color:var(--sea);font-weight:900}.number-item strong{color:var(--title)}.number-item a{color:var(--sea);font-weight:700}.pebble-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.pebble-card,.content-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow)}.pebble-card h3,.content-card h3{margin:14px 0 6px;color:var(--title);font-size:19px}.pebble-card p,.content-card p{margin:0;color:var(--muted)}.pebble-media,.column-media{height:200px;background:var(--pale);border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden}.pebble-media img,.column-media img{width:100%;height:100%;object-fit:contain;object-position:center}.four-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.two-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.plain-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.plain-card h3{margin:0 0 8px;color:var(--title)}.plain-card p{margin:0;color:var(--muted)}.album-list{display:grid;gap:10px}.album-row{display:grid;grid-template-columns:90px 1fr auto;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);padding:14px;border-radius:12px}.album-row b{color:var(--title)}.album-row span{color:var(--muted)}.album-row a{color:var(--sea);font-weight:700}.gallery-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.gallery-tile{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}.gallery-tile .visual{height:160px;background:linear-gradient(145deg,var(--pale),#fff);display:flex;align-items:center;justify-content:center;color:var(--deep);font-weight:800}.gallery-tile p{margin:0;padding:14px;color:var(--muted)}.media-copy{display:grid;grid-template-columns:minmax(260px, .9fr) minmax(0,1.1fr);gap:26px;align-items:center}.media-copy.reverse{grid-template-columns:minmax(0,1.1fr) minmax(260px,.9fr)}.media-copy .column-media{height:240px}.app-visual{max-height:420px}.app-visual img{max-height:420px;width:100%;object-fit:contain}.app-brand-mark{min-height:56px;display:flex;align-items:center;margin-bottom:10px}.app-icon{width:64px;height:64px;object-fit:contain;object-position:center;border-radius:14px}.page-hero{padding:44px 0 18px}.page-hero .lead{font-size:17px}.page-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:28px;align-items:start}.article-body{background:#fff;border:1px solid var(--line);border-radius:18px;padding:clamp(20px,3vw,34px);box-shadow:var(--shadow)}.article-body section+section{margin-top:34px;padding-top:30px;border-top:1px solid var(--line)}.article-body h2{margin:0 0 12px;color:var(--title);font-size:23px}.article-body h3{margin:0 0 10px;color:var(--deep);font-size:18px}.article-body p{margin:0 0 14px}.article-body p:last-child{margin-bottom:0}.aside-card{position:sticky;top:146px;background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:20px}.aside-card h2{margin:0 0 12px;color:var(--title);font-size:18px}.aside-card a{display:block;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-top:8px;color:var(--deep)}.index-list{display:grid;gap:12px}.index-item{background:#fff;border-left:4px solid var(--sea);border-radius:0 12px 12px 0;padding:16px 18px}.index-item h3{margin:0 0 8px;color:var(--title)}.index-item p{margin:0;color:var(--muted)}.longread .chapter{margin-bottom:34px}.longread .chapter:last-child{margin-bottom:0}.memo-list{display:grid;gap:14px}.memo-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px}.memo-item h3{margin:0 0 7px;color:var(--title)}.pane-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.pane-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;min-height:180px}.pane-box h2{margin-top:0}.map-pages{display:grid;gap:16px;counter-reset:page}.map-page{counter-increment:page;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}.map-page:before{content:"册页 " counter(page,decimal-leading-zero);display:block;color:var(--sea);font-weight:800;margin-bottom:8px}.pouch-section{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;margin-bottom:16px}.gallery-corridor{display:grid;gap:18px}.corridor-item{display:grid;grid-template-columns:220px 1fr;gap:20px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}.corridor-visual{min-height:150px;border-radius:12px;background:var(--pale);display:flex;align-items:center;justify-content:center;color:var(--deep);font-weight:800}.corridor-item h2{margin-top:0}.twilight-index{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.twilight-card{background:linear-gradient(180deg,#fff,var(--soft));border:1px solid var(--line);border-radius:16px;padding:22px}.process{display:grid;gap:16px;counter-reset:step}.process-step{counter-increment:step;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.process-step h2:before{content:counter(step,decimal-leading-zero) " · ";color:var(--sea)}.clause-list{display:grid;gap:16px}.clause{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.clause h2{margin:0 0 8px;color:var(--title);font-size:21px}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.faq-item h2{margin:0 0 8px;color:var(--title);font-size:19px}.faq-item p{margin:0}.notice{background:var(--pale);border:1px solid var(--line);border-radius:14px;padding:18px;color:var(--deep)}.site-footer{background:var(--title);color:#D4E8EC;padding:46px 0 calc(24px + env(safe-area-inset-bottom));margin-top:50px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:28px}.footer-brand p{max-width:330px;color:#BFD9DE}.footer-brand-row{display:flex;align-items:center;gap:12px;color:#fff}.footer-logo{max-width:150px;height:32px;object-fit:contain;object-position:left center}.footer-brand-row span{display:flex;flex-direction:column}.footer-brand-row small{font-size:11px;letter-spacing:.18em;color:#BFD9DE}.footer-group h2{margin:0 0 10px;color:#fff;font-size:16px}.footer-group a{display:block;color:#D4E8EC;margin:5px 0;font-size:14px}.footer-bottom{margin-top:30px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:#BFD9DE;font-size:13px}.screen-overlay{position:fixed;inset:0;background:rgba(14,58,70,.34);z-index:70;opacity:0;visibility:hidden;pointer-events:none;transition:.25s}.screen-overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.tide-drawer{position:fixed;z-index:80;top:0;right:0;width:min(410px,86vw);height:100dvh;background:var(--mist);box-shadow:-18px 0 42px rgba(14,58,70,.18);transform:translateX(104%);transition:transform .28s ease;visibility:hidden;pointer-events:none;overflow-y:auto}.tide-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{position:sticky;top:0;z-index:2;background:#fff;border-bottom:1px solid var(--line);min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px}.drawer-brand{display:flex;align-items:center;gap:10px}.drawer-logo{max-width:130px;height:30px;object-fit:contain}.drawer-brand span{display:flex;flex-direction:column;color:var(--title);line-height:1.2}.drawer-brand small{font-size:10px;color:var(--muted);letter-spacing:.12em}.icon-button{min-width:44px;min-height:44px;border:1px solid var(--line);background:var(--soft);color:var(--deep);border-radius:10px}.drawer-sections{padding:14px;display:grid;gap:12px}.wave-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow)}.wave-card h2{margin:0 0 8px;color:var(--title);font-size:17px}.wave-card a{display:block;padding:9px 0;border-top:1px solid var(--line)}.wave-card a:first-of-type{border-top:0}.wave-card strong{display:block;color:var(--deep);font-size:15px}.wave-card span{display:block;color:var(--muted);font-size:12px;line-height:1.55;margin-top:2px}.search-layer{position:fixed;z-index:80;top:82px;left:0;right:0;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-10px);transition:.22s}.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:translateY(0)}.search-card{width:min(760px,calc(100% - 32px));margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:0 0 18px 18px;box-shadow:var(--shadow);padding:20px}.search-head{display:flex;align-items:center;justify-content:space-between;gap:16px}.search-head h2{margin:0;color:var(--title);font-size:20px}.search-look{display:block;margin-top:14px}.search-look span{display:block;margin-bottom:7px;color:var(--muted);font-size:14px}.search-look input{width:100%;height:46px;border:1px solid var(--line);border-radius:10px;background:var(--soft);padding:0 13px;color:var(--muted)}.search-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.search-links a{display:inline-flex;min-height:44px;align-items:center;padding:0 14px;border-radius:10px;background:var(--pale);color:var(--deep);font-weight:700}.mobile-bottom{display:none}
@media (max-width:900px){.step-row,.pebble-grid,.four-grid{grid-template-columns:repeat(2,1fr)}.three-grid,.twilight-index{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}.page-layout{grid-template-columns:1fr}.aside-card{position:static}.media-copy,.media-copy.reverse{grid-template-columns:1fr}.corridor-item{grid-template-columns:180px 1fr}}
@media (max-width:640px){body{padding-bottom:calc(58px + env(safe-area-inset-bottom))}.shell{width:min(100% - 32px,1180px)}.dock-inner{grid-template-columns:minmax(0,1fr) auto auto;gap:8px}.brand-logo{max-width:112px;height:30px}.brand-fallback{font-size:17px}.drawer-trigger,.app-link{padding:0 11px;font-size:13px}.shell-tabs{display:none}.site-main{padding-top:82px}.section{padding:34px 0}.page-hero{padding-top:34px}.hero-slot{min-height:180px}.step-row,.pebble-grid,.four-grid,.two-grid,.pane-grid{grid-template-columns:1fr}.gallery-strip{grid-template-columns:1fr 1fr}.number-item{grid-template-columns:40px 1fr}.number-item a{grid-column:2}.album-row{grid-template-columns:70px 1fr}.album-row a{grid-column:2}.footer-grid{grid-template-columns:1fr 1fr;gap:22px}.footer-brand{grid-column:1/-1}.footer-bottom{padding-bottom:18px}.search-layer{top:82px}.search-card{width:calc(100% - 20px);background:var(--pale);border-radius:0 0 16px 16px}.mobile-bottom{position:fixed;z-index:60;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);height:calc(50px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(14,58,70,.08)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:50px;color:var(--deep);font-size:13px}.mobile-bottom a.is-current{background:var(--sea);color:#fff}.corridor-item{grid-template-columns:1fr}.corridor-visual{min-height:130px}.article-body{padding:20px}.page-hero h1,.hero-copy h1{font-size:28px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}