:root{
    --bg:#E8F4F0;--deep:#C8E4DC;--card:#F4FAF8;--soft:#DCEEE8;--title:#16382E;--text:#245044;
    --muted:#4A7468;--light:#6A9488;--teal:#2A8A72;--jade:#3AA88A;--gold:#C4A050;
    --border:rgba(22,56,46,.12);--border-strong:rgba(42,138,114,.48);--shadow:0 12px 28px rgba(22,56,46,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7;overflow-x:hidden}
body.is-locked{overflow:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
button{cursor:pointer}
.shell{width:min(960px,calc(100% - 32px));margin:0 auto}
.site-top{position:fixed;inset:0 0 auto 0;z-index:60}
.top-rail{height:20px;background:var(--teal);color:var(--card);font-size:12px}
.top-rail-inner{height:20px;display:flex;align-items:center;justify-content:space-between}
.text-button{border:0;background:transparent;color:var(--card);padding:0 2px;min-height:20px}
.brand-row{height:54px;background:var(--card);border-bottom:1px solid var(--border-strong)}
.brand-row-inner{height:54px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand-mark{display:flex;align-items:center;min-width:100px;height:44px}
.logo-image{height:24px;width:auto;object-fit:contain;object-position:center}
.brand-fallback{font-size:16px;font-weight:800;color:var(--title)}
.brand-actions{display:flex;align-items:center;gap:10px}
.app-entry,.menu-button{height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 16px;border-radius:11px;font-size:14px}
.app-entry{background:linear-gradient(135deg,var(--teal) 0%,var(--jade) 100%);color:var(--card);border:1px solid transparent}
.menu-button{background:var(--card);color:var(--title);border:1px solid var(--teal)}
.point-nav{height:48px;background:var(--card);border-bottom:1px solid var(--border)}
.point-nav-inner{height:48px;display:flex;align-items:center;justify-content:center;gap:50px}
.point-item{position:relative;display:flex;align-items:center;gap:8px;font-size:13px;min-height:44px;color:var(--muted)}
.point-item:nth-child(3){transform:translateY(-4px)}
.point-dot{width:10px;height:10px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(42,138,114,.08)}
.point-item.is-current{font-weight:800;color:var(--title)}
.point-item.is-current .point-dot{width:14px;height:14px}
.site-main{padding-top:146px;min-height:70vh;padding-bottom:52px}
.hero,.section-block,.article-block,.status-block,.topic-block,.policy-block{margin-bottom:28px}
.eyebrow{font-size:13px;letter-spacing:.08em;color:var(--teal);font-weight:800;margin-bottom:8px}
h1,h2,h3{color:var(--title);margin:0 0 12px}
h1{font-size:24px;line-height:1.3}
h2{font-size:20px;line-height:1.35}
h3{font-size:16px;line-height:1.45}
p{margin:0 0 12px}
.lead{font-size:16px;color:var(--muted);max-width:760px}
.meta-line{font-size:13px;color:var(--light)}
.action-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.btn{min-height:44px;padding:0 18px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.btn-primary{background:linear-gradient(135deg,var(--teal) 0%,var(--jade) 100%);color:var(--card)}
.btn-secondary{background:var(--card);color:var(--title);border:1px solid var(--teal)}
.btn:hover,.btn:focus-visible,.app-entry:hover,.app-entry:focus-visible,.menu-button:hover,.menu-button:focus-visible{transform:translateY(-1px);outline:2px solid rgba(196,160,80,.45);outline-offset:2px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow)}
.media-slot{background:linear-gradient(145deg,var(--card),var(--soft));border:1px dashed var(--border-strong);border-radius:12px;min-height:120px;object-fit:contain;object-position:center}
.media-slot.empty::after{content:"";display:block;padding-top:42%}
.home-intro{padding:8px 0 6px}
.home-point-index{display:flex;gap:18px;flex-wrap:wrap;margin:0 0 16px;padding:0;list-style:none}
.home-point-index a{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:13px}
.home-point-index i{display:block;width:9px;height:9px;border-radius:50%;background:var(--teal)}
.split-strip{display:grid;grid-template-columns:1.05fr .95fr;background:var(--card);border-radius:14px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow)}
.split-strip .copy{padding:26px}
.split-strip .visual{height:164px;padding:14px;background:var(--soft);display:flex;align-items:center;justify-content:center}
.split-strip .visual img,.split-strip .visual .media-slot{width:100%;height:100%;object-fit:contain}
.vertical-records{display:grid;gap:14px}
.record-row{display:grid;grid-template-columns:120px 1fr;gap:18px;padding:18px;background:var(--card);border:1px solid var(--border);border-radius:12px}
.record-index{font-size:12px;color:var(--teal);font-weight:800;letter-spacing:.06em}
.record-visual{min-height:140px}
.record-visual img,.record-visual .media-slot{width:100%;height:140px;object-fit:contain}
.clip-pair{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.clip-card{padding:20px;background:var(--card);border:1px solid var(--border);border-radius:14px;position:relative}
.clip-card::before{content:"";position:absolute;left:22px;right:22px;top:-1px;height:4px;background:var(--teal);border-radius:0 0 4px 4px}
.clip-media{height:170px;margin-bottom:14px}.clip-media img,.clip-media .media-slot{width:100%;height:100%;object-fit:contain}
.archive-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.archive-card{padding:22px}.archive-head{height:150px;margin-bottom:14px}.archive-head img,.archive-head .media-slot{width:100%;height:100%;object-fit:contain}
.thirds{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.thirds .card{padding:18px}
.status-list{display:grid;gap:10px}.status-row{display:grid;grid-template-columns:1fr auto;gap:14px;padding:16px 18px;background:var(--card);border:1px solid var(--border);border-radius:10px}.status-tag{font-size:12px;color:var(--card);background:var(--teal);border-radius:999px;padding:4px 10px;align-self:start}
.app-showcase{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center;padding:24px;background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}
.app-visual{height:300px;display:flex;align-items:center;justify-content:center;background:var(--soft);border-radius:12px;padding:14px}.app-visual img,.app-visual .media-slot{width:100%;height:100%;object-fit:contain}
.app-brandline{display:flex;gap:12px;align-items:center;margin-bottom:12px}.icon48{width:48px;height:48px;object-fit:contain}
.note-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.note-grid .card{padding:18px}
.faq-mini{display:grid;gap:12px}.faq-mini details{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:12px 16px}.faq-mini summary{cursor:pointer;font-weight:800;color:var(--title)}
.page-header{margin-bottom:24px}.page-header .header-strip{height:200px;margin-top:16px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:12px}.page-header .header-strip img,.page-header .header-strip .media-slot{width:100%;height:100%;object-fit:contain}
.layout-vertical{display:grid;gap:16px}.layout-vertical .entry{padding:20px;background:var(--card);border-left:4px solid var(--teal);border-radius:0 12px 12px 0}
.layout-open{display:grid;grid-template-columns:1fr 1fr;gap:0;background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden}.layout-open>section{padding:24px}.layout-open>section+section{border-left:1px solid var(--border)}
.layout-clip{display:grid;grid-template-columns:1fr 1fr;gap:18px}.layout-clip article{padding:20px;background:var(--card);border:1px solid var(--border);border-radius:12px}
.single-flow{max-width:760px}.single-flow section{padding:0 0 20px;margin-bottom:20px;border-bottom:1px solid var(--border)}
.timeline-three{display:grid;gap:18px}.timeline-three article{padding:20px 20px 20px 28px;background:var(--card);border-radius:12px;border:1px solid var(--border);position:relative}.timeline-three article::before{content:"";position:absolute;left:10px;top:22px;bottom:22px;width:4px;border-radius:4px;background:var(--teal)}
.memo-list{display:grid;gap:12px}.memo-item{display:grid;grid-template-columns:34px 1fr;gap:12px;padding:16px;background:var(--card);border:1px solid var(--border);border-radius:12px}.memo-no{width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:var(--teal);color:var(--card);font-weight:800;font-size:12px}
.method-steps{display:grid;grid-template-columns:1fr 1fr;gap:18px}.method-steps article{padding:22px;background:var(--card);border-top:4px solid var(--gold);border-radius:12px}
.topic-list{display:grid;gap:14px}.topic-row{display:grid;grid-template-columns:170px 1fr;gap:18px;padding:18px;background:var(--card);border:1px solid var(--border);border-radius:12px}
.center-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;max-width:820px;margin:0 auto}.center-cards article{text-align:center;padding:24px;background:var(--card);border:1px solid var(--border);border-radius:12px}
.policy-stack{display:grid;gap:14px}.policy-stack section{padding:20px;background:var(--card);border:1px solid var(--border);border-radius:12px}
.help-index{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:20px}.help-index a{padding:12px;background:var(--card);border:1px solid var(--border);border-radius:10px;text-align:center;font-weight:700;color:var(--title)}
.faq-list{display:grid;gap:12px}.faq-list details{padding:16px 18px;background:var(--card);border:1px solid var(--border);border-radius:12px}.faq-list summary{font-weight:800;color:var(--title);cursor:pointer}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.contact-grid section{padding:22px;background:var(--card);border:1px solid var(--border);border-radius:12px}
.about-flow{display:grid;gap:20px}.about-flow section{padding:22px;background:var(--card);border:1px solid var(--border);border-radius:14px}.about-cover{height:220px;background:var(--soft);padding:12px;border-radius:12px}.about-cover img,.about-cover .media-slot{width:100%;height:100%;object-fit:contain}
.site-footer{background:var(--title);color:var(--bg);border-top:1px solid rgba(244,250,248,.35);padding:34px 0 calc(34px + env(safe-area-inset-bottom))}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:24px}.footer-brand strong{font-size:16px}.footer-brand span{font-size:12px;color:#C8E4DC}
.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-grid h2{font-size:13px;color:var(--card);margin-bottom:8px}.footer-grid a{display:block;font-size:13px;color:var(--bg);padding:3px 0}.footer-note,.footer-copy{font-size:13px;color:#C8E4DC}.footer-note{margin-top:24px}.footer-copy{margin-bottom:0}
.page-mask{position:fixed;inset:0;background:rgba(22,56,46,.34);z-index:80;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.page-mask.is-active{opacity:1;visibility:visible;pointer-events:auto}
.side-drawer{position:fixed;left:0;top:0;z-index:90;width:min(36vw,430px);min-width:320px;max-height:calc(100vh - 24px);overflow:auto;background:var(--card);border-radius:0 0 14px 0;box-shadow:var(--shadow);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:.24s ease;padding:18px}.side-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px}.close-button{min-height:44px;padding:0 14px;border:1px solid var(--teal);background:var(--card);color:var(--title);border-radius:10px}.drawer-groups{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding-top:14px}.drawer-groups section{min-width:0}.drawer-groups h2{font-size:14px;margin-bottom:6px}.drawer-groups a{display:block;padding:8px 0;border-bottom:1px solid var(--border)}.drawer-groups b{display:block;font-size:14px;color:var(--title)}.drawer-groups span{display:block;font-size:12px;color:var(--muted)}
.search-layer{position:fixed;z-index:85;left:0;right:0;top:74px;visibility:hidden;pointer-events:none;opacity:0;transition:.2s}.search-layer.is-open{visibility:visible;pointer-events:auto;opacity:1}.search-card{width:min(640px,calc(100% - 32px));margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:0 0 14px 14px;padding:18px;box-shadow:var(--shadow)}.search-head{display:flex;justify-content:space-between;gap:18px;align-items:start}.search-head strong{display:block;color:var(--title);font-size:18px}.search-head span{display:block;color:var(--muted);font-size:13px}.search-card label{display:block;font-size:13px;margin:14px 0 6px;color:var(--muted)}.search-card input{width:100%;height:44px;border:1px solid var(--border-strong);border-radius:10px;background:#fff;color:var(--title);padding:0 12px;outline:none}.search-card input:focus{box-shadow:0 0 0 3px rgba(42,138,114,.12)}.search-presets{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-presets a{min-height:40px;display:inline-flex;align-items:center;padding:0 13px;border-radius:999px;border:1px solid var(--teal);color:var(--title);background:var(--card)}.search-empty{font-size:13px;color:var(--muted);margin-top:12px}
.mobile-bottom{display:none}
@media (max-width:760px){
    .shell{width:calc(100% - 32px)}
    .point-nav{display:none}.site-main{padding-top:94px;padding-bottom:76px}
    .brand-actions{gap:6px}.app-entry,.menu-button{padding:0 12px}
    .split-strip,.clip-pair,.archive-cards,.thirds,.app-showcase,.note-grid,.layout-open,.layout-clip,.method-steps,.center-cards,.contact-grid{grid-template-columns:1fr}
    .layout-open>section+section{border-left:0;border-top:1px solid var(--border)}
    .record-row,.topic-row{grid-template-columns:1fr}.record-visual{order:2}
    .footer-grid{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:calc(88px + env(safe-area-inset-bottom))}
    .side-drawer{width:min(88vw,380px);min-width:0}.drawer-groups{grid-template-columns:1fr}
    .search-layer{top:0;bottom:0;background:var(--teal);padding:16px;display:flex;align-items:flex-start}.search-card{width:100%;margin:58px auto 0;border-radius:14px;background:var(--teal);color:var(--card);box-shadow:none;border-color:rgba(244,250,248,.35)}.search-head strong,.search-head span,.search-card label{color:var(--card)}.search-card input{background:var(--card)}.search-presets a{color:var(--card);border-color:rgba(244,250,248,.6);background:rgba(244,250,248,.08)}.search-empty{color:var(--card)}.search-card .close-button{background:transparent;color:var(--card);border-color:rgba(244,250,248,.75)}
    .mobile-bottom{position:fixed;z-index:70;left:0;right:0;bottom:0;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(--card);border-top:1px solid var(--border)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:48px;font-size:13px;color:var(--title)}.mobile-bottom a.is-current{background:var(--teal);color:var(--card)}
    .help-index{grid-template-columns:1fr 1fr}.split-strip .visual{height:164px}.app-visual{height:280px}
}

.install-ladder{display:grid;gap:14px;counter-reset:install-step}.install-ladder>section{position:relative;padding:20px 20px 20px 64px;background:var(--card);border:1px solid var(--border);border-radius:12px}.install-ladder>section::before{counter-increment:install-step;content:counter(install-step);position:absolute;left:18px;top:20px;width:30px;height:30px;display:grid;place-items:center;border-radius:50%;background:var(--teal);color:var(--card);font-weight:800}
.rights-ledger{display:grid;gap:0;background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden}.rights-ledger>section{padding:22px 24px;border-bottom:1px solid var(--border)}.rights-ledger>section:last-child{border-bottom:0}.rights-ledger>section:nth-child(even){background:var(--soft)}
.grade-guide{display:grid;grid-template-columns:1fr 1fr;gap:16px}.grade-guide>section{padding:20px;background:var(--card);border:1px solid var(--border);border-radius:12px}.grade-guide>section:last-child{grid-column:1/-1}
.privacy-panels{display:grid;gap:16px}.privacy-panels>section{padding:20px 22px;background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:inset 5px 0 0 rgba(42,138,114,.22)}
.help-sections{display:grid;gap:18px}.help-sections>section{padding:22px;background:var(--card);border:1px solid var(--border);border-radius:12px}.help-sections>section:nth-child(odd){margin-right:7%}.help-sections>section:nth-child(even){margin-left:7%}
@media (max-width:760px){.grade-guide{grid-template-columns:1fr}.grade-guide>section:last-child{grid-column:auto}.help-sections>section:nth-child(odd),.help-sections>section:nth-child(even){margin-left:0;margin-right:0}.install-ladder>section{padding-left:58px}}

.padded-card{padding:22px}.padded-card-lg{padding:24px}.supplement-card{padding:22px;margin-top:20px}.top-gap{margin-top:20px}.mt14{margin-top:14px}.mt16{margin-top:16px}.mb12{margin-bottom:12px}.mb14{margin-bottom:14px}.mb16{margin-bottom:16px}.centered-header{text-align:center;max-width:760px;margin-left:auto;margin-right:auto}.centered-lead{margin-left:auto;margin-right:auto}.centered-card{padding:24px;max-width:820px;margin:22px auto 0}.media-card{padding:18px}.media-h120{height:120px}.media-h150{height:150px}.media-h170{height:170px}.media-h180{height:180px}.media-h190{height:190px}.media-h220{height:220px}.media-h240{height:240px}.media-h120>img,.media-h120>.media-slot,.media-h150>img,.media-h150>.media-slot,.media-h170>img,.media-h170>.media-slot,.media-h180>img,.media-h180>.media-slot,.media-h190>img,.media-h190>.media-slot,.media-h220>img,.media-h220>.media-slot,.media-h240>img,.media-h240>.media-slot{width:100%;height:100%;object-fit:contain;object-position:center}