:root{--bg:#f7f4ec;--surface:#fffdf7;--surface-strong:#ffffff;--ink:#20231d;--muted:#64685d;--line:#dfd9c9;--green:#1f6f55;--green-deep:#124638;--coral:#d86442;--mustard:#d7a42f;--shadow:0 18px 50px rgba(31,41,28,0.11)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Arial,Microsoft YaHei,PingFang SC,sans-serif;letter-spacing:0}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,textarea{font:inherit}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;padding:14px clamp(18px,5vw,72px);background:rgba(255,253,247,.92);border-bottom:1px solid rgba(32,35,29,.08);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.admin-brand,.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:var(--green);color:#fffdf7}.site-nav{display:flex;align-items:center;justify-content:flex-end;gap:clamp(12px,2.2vw,28px);color:var(--muted);font-size:15px;white-space:nowrap}.site-nav a{padding:8px 0}.site-nav a:hover,.text-link:hover{color:var(--green)}.hero-section{position:relative;min-height:68vh;display:grid;align-items:flex-end;overflow:hidden;padding:clamp(96px,14vw,160px) clamp(18px,5vw,72px) clamp(54px,8vw,90px)}.hero-media{position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,32,24,.82),rgba(20,32,24,.45),rgba(20,32,24,.08)),url(/assets/hero-course.png) 50% /cover}.hero-overlay{position:absolute;inset:auto 0 0;height:42%;background:linear-gradient(0deg,var(--bg),rgba(247,244,236,0))}.hero-content{position:relative;z-index:1;width:min(760px,100%);color:#fffdf7}.eyebrow,.hero-kicker{display:inline-flex;color:var(--coral);font-size:13px;font-weight:800}.hero-kicker{color:#f0c86a}h1,h2,h3,p{margin-top:0}h1{margin-bottom:18px;font-size:clamp(40px,6vw,72px);line-height:1.06;letter-spacing:0}h2{margin-bottom:14px;font-size:clamp(26px,3.2vw,42px);line-height:1.16}h3{font-size:21px;line-height:1.24}p{color:var(--muted);line-height:1.75}.hero-content p{width:min(680px,100%);color:rgba(255,253,247,.84);font-size:clamp(17px,2vw,21px)}.unlock-hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(300px,.55fr);grid-gap:28px;gap:28px;width:min(1160px,calc(100% - 36px));margin:34px auto 0;padding:clamp(36px,6vw,68px);border-radius:8px;background:linear-gradient(125deg,rgba(18,70,56,.95),rgba(31,111,85,.72)),url(/assets/hero-course.png) 50% /cover;color:#fffdf7}.unlock-hero h1{width:min(800px,100%)}.unlock-hero p{width:min(720px,100%);color:rgba(255,253,247,.82);font-size:clamp(16px,1.8vw,20px)}.unlock-summary{align-self:end;display:grid;grid-gap:14px;gap:14px;padding:24px;border:1px solid rgba(255,253,247,.26);border-radius:8px;background:rgba(255,253,247,.14);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.unlock-summary span{color:rgba(255,253,247,.78)}.unlock-summary strong{font-size:54px;line-height:1}.unlock-summary p{margin:0}.progress-track{height:10px;overflow:hidden;border-radius:999px;background:rgba(255,253,247,.22)}.progress-track div{height:100%;border-radius:inherit;background:var(--mustard)}.footer-links,.hero-actions{display:flex;flex-wrap:wrap;gap:12px}.danger-button,.ghost-button,.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border:1px solid transparent;border-radius:8px;padding:0 18px;cursor:pointer;font-weight:800}.primary-button{background:var(--green);color:#fffdf7}.primary-button:hover{background:var(--green-deep)}.secondary-button{background:rgba(255,253,247,.14);border-color:rgba(255,253,247,.45);color:#fffdf7}.secondary-button.light{background:#fffdf7;color:var(--green-deep)}.ghost-button{background:transparent;border-color:var(--line);color:var(--ink)}.danger-button{background:#fff2ee;border-color:#f1c2b5;color:#a33b23}.contact-section,.page-hero,.section{width:min(1160px,calc(100% - 36px));margin:0 auto}.section{padding:clamp(48px,7vw,88px) 0}.intro-band,.warm-band{width:100%;padding-inline:max(18px,calc((100% - 1160px) / 2))}.intro-band{background:#fff8e6}.warm-band{background:#f1eadb}.section-heading{width:min(720px,100%);margin-bottom:28px}.section-heading h2{margin-top:10px}.split-heading{width:100%;display:flex;align-items:flex-end;justify-content:space-between;gap:20px}.text-link{color:var(--green-deep);font-weight:800}.article-grid,.path-grid,.resource-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:18px;gap:18px}.admin-form,.admin-login-card,.admin-row,.article-card,.contact-panel,.path-item,.resource-card,.system-panel{border:1px solid rgba(32,35,29,.1);border-radius:8px;background:var(--surface-strong);box-shadow:var(--shadow)}.path-item{display:block;min-height:210px;padding:24px}.path-item span{color:var(--mustard);font-weight:900}.path-item p,.resource-body p{margin-bottom:0}.article-card,.resource-card{overflow:hidden;background:var(--surface)}.article-card{display:block}.resource-image{width:100%;aspect-ratio:16/10;object-fit:cover}.resource-body{padding:22px}.resource-body h3{margin:10px 0}.resource-body .text-link{display:inline-flex;margin-top:18px}.page-shell{padding-bottom:44px}.page-hero{margin-top:34px;min-height:320px;display:grid;align-content:end;padding:clamp(38px,7vw,70px);border-radius:8px;overflow:hidden;color:#fffdf7;background:linear-gradient(90deg,rgba(18,70,56,.9),rgba(31,111,85,.5)),url(/assets/hero-course.png) 50% /cover}.compact-hero{background:linear-gradient(90deg,rgba(18,70,56,.92),rgba(216,100,66,.42)),url(/assets/material-sop.png) 50% /cover}.preview-hero{background:linear-gradient(90deg,rgba(32,35,29,.86),rgba(31,111,85,.32)),url(/assets/preview-system.png) 50% /cover}.about-hero{background:linear-gradient(90deg,rgba(32,35,29,.88),rgba(215,164,47,.32)),url(/assets/material-team.png) 50% /cover}.article-hero{background:linear-gradient(90deg,rgba(18,70,56,.9),rgba(215,164,47,.36)),url(/assets/material-team.png) 50% /cover}.page-hero h1,.page-hero p{width:min(760px,100%);color:#fffdf7}.page-hero p{margin-bottom:0;color:rgba(255,253,247,.86)}.category-strip{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:22px}.category-strip span{border:1px solid var(--line);border-radius:999px;padding:8px 14px;background:#fffdf7;color:var(--green-deep);font-weight:700}.module-strip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));grid-gap:12px;gap:12px;margin-bottom:18px}.module-chip{display:grid;grid-gap:8px;gap:8px;min-height:112px;padding:18px;border:1px solid var(--line);border-radius:8px;background:var(--surface-strong)}.module-chip span{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:var(--green);color:#fffdf7;font-weight:900}.module-chip small{color:var(--muted);font-weight:800}.bonus-board-block{margin-top:30px}.compact-heading{margin-bottom:16px}.compact-heading h2{margin-top:8px;font-size:clamp(24px,2.4vw,32px)}.unlock-board{overflow:hidden;border:1px solid #d7c72a;border-radius:8px;background:var(--surface-strong);box-shadow:var(--shadow)}.course-row,.unlock-board-head{display:grid;grid-template-columns:90px 100px minmax(280px,1.2fr) minmax(210px,.8fr) 180px}.unlock-board-head{min-height:54px;align-items:center;background:#fff044;color:#20231d;font-size:18px;font-weight:900}.course-row>div,.unlock-board-head span{padding:14px 16px;border-right:1px solid var(--line)}.course-row>div:last-child,.unlock-board-head span:last-child{border-right:0}.course-row{min-height:78px;align-items:center;border-top:1px solid var(--line);background:#fffdf7}.course-row.unlocked{background:#f7fff8}.action-cell,.module-cell,.unlock-cell{display:flex;align-items:center}.module-cell,.unlock-cell{justify-content:center}.unlock-check{display:grid;place-items:center;width:30px;height:30px;border:2px solid #2f68ff;border-radius:5px;color:var(--green);font-weight:900}.course-row.unlocked .unlock-check{border-color:var(--green);background:#e7f7ed}.module-cell span{display:grid;place-items:center;width:38px;height:38px;border-radius:8px;background:#f1eadb;color:var(--green-deep);font-size:20px;font-weight:900}.course-cell strong{display:block;margin-bottom:4px;font-size:18px}.course-cell p{margin:0;font-size:14px;line-height:1.55}.table-button{display:inline-flex;align-items:center;justify-content:center;min-height:38px;border-radius:8px;padding:0 14px;background:var(--green);color:#fffdf7;font-weight:900;white-space:nowrap}.table-button.secondary{background:#fff8e6;border:1px solid var(--line);color:var(--green-deep)}.empty-state,.table-button.muted{background:#f1eadb;color:var(--muted)}.empty-state{display:inline-flex;align-items:center;min-height:38px;border-radius:8px;padding:0 14px;font-weight:900}.about-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);grid-gap:28px;gap:28px}.check-list{display:grid;grid-gap:12px;gap:12px;margin-top:22px}.check-list p{margin:0;padding:16px 18px;border-left:4px solid var(--green);background:#fffdf7}.system-panel{padding:28px}.system-list{display:grid;grid-gap:14px;gap:14px}.system-list div{display:flex;align-items:center;gap:14px;padding-bottom:14px;border-bottom:1px solid var(--line)}.system-list span{color:var(--coral);font-weight:900}.contact-section{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(300px,.8fr);grid-gap:28px;gap:28px;align-items:center;min-height:calc(100vh - 210px);padding:clamp(48px,8vw,92px) 0}.contact-copy h1{font-size:clamp(38px,5.5vw,64px)}.contact-panel{padding:26px}.contact-panel img{width:min(260px,100%);aspect-ratio:1;object-fit:cover;margin-bottom:22px;border:1px solid var(--line);border-radius:8px}.contact-panel dl{display:grid;grid-gap:18px;gap:18px;margin:0}.contact-panel div{border-top:1px solid var(--line);padding-top:14px}.contact-panel dt{color:var(--muted);font-size:13px}.contact-panel dd{margin:4px 0 0;font-weight:800}.article-detail{width:min(920px,calc(100% - 36px));margin:34px auto 0;padding-bottom:54px}.article-detail-head{padding:clamp(32px,6vw,58px);border-radius:8px;background:var(--surface-strong);box-shadow:var(--shadow)}.article-detail-head h1{margin-top:10px;font-size:clamp(34px,5vw,56px)}.article-detail-head p{margin-bottom:0;font-size:18px}.article-cover{width:100%;aspect-ratio:16/8;object-fit:cover;margin:22px 0;border-radius:8px}.article-content{display:grid;grid-gap:22px;gap:22px;padding:clamp(24px,5vw,44px);border:1px solid rgba(32,35,29,.1);border-radius:8px;background:var(--surface-strong)}.article-content h2{margin:8px 0 0;font-size:clamp(24px,3vw,34px)}.article-content p{margin:0;color:var(--ink);font-size:17px}.article-media-list,.article-video-list{display:grid;grid-gap:18px;gap:18px}.article-figure{margin:0}.article-figure img,.article-video iframe{width:100%;border:0;border-radius:8px;background:#f1eadb}.article-figure img{max-height:620px;object-fit:cover}.article-figure figcaption{margin-top:8px;color:var(--muted);font-size:14px}.article-video iframe{aspect-ratio:16/9}.article-video a{display:inline-flex;align-items:center;min-height:44px;border-radius:8px;padding:0 16px;background:var(--green);color:#fffdf7;font-weight:900}.site-footer{display:flex;justify-content:space-between;gap:24px;padding:34px clamp(18px,5vw,72px);border-top:1px solid rgba(32,35,29,.1);background:#20231d;color:#fffdf7}.site-footer a,.site-footer p{color:rgba(255,253,247,.72)}.admin-login-page{display:grid;place-items:center;min-height:70vh;padding:36px 18px}.admin-login-card{width:min(430px,100%);padding:28px}.admin-shell{display:grid;grid-template-columns:240px minmax(0,1fr);width:min(1280px,calc(100% - 36px));margin:32px auto 60px;grid-gap:22px;gap:22px}.admin-sidebar{position:-webkit-sticky;position:sticky;top:92px;height:max-content;display:grid;grid-gap:20px;gap:20px;padding:20px;border:1px solid var(--line);border-radius:8px;background:var(--surface-strong)}.admin-sidebar nav{display:grid;grid-gap:8px;gap:8px}.admin-sidebar nav a{padding:10px 12px;border-radius:8px;color:var(--muted)}.admin-sidebar nav a:hover{background:#f1eadb;color:var(--green-deep)}.admin-stack{display:grid;grid-gap:22px;gap:22px}.admin-title h1{margin-bottom:8px;font-size:36px}.admin-title p{margin-bottom:0}.admin-form{display:grid;grid-gap:18px;gap:18px;padding:22px}.admin-form.compact{margin-top:16px;box-shadow:none}.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:16px;gap:16px}label{display:grid;grid-gap:8px;gap:8px;color:var(--green-deep);font-weight:800}input,textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:12px 13px;background:#fffdf7;color:var(--ink);outline-color:var(--green)}textarea{resize:vertical}.wide-field{grid-column:1/-1}.check-field{display:flex;align-items:center;gap:10px}.check-field input{width:18px;height:18px}.admin-list{display:grid;grid-gap:14px;gap:14px}.admin-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;grid-gap:18px;gap:18px;padding:18px}.admin-row h2{margin:6px 0;font-size:22px}.admin-row p{margin-bottom:0}.admin-row details{min-width:96px}.admin-row summary{cursor:pointer;color:var(--green-deep);font-weight:900}.status-dot{color:var(--coral);font-size:13px;font-weight:900}.form-error{margin:0;color:#a33b23;font-weight:800}.form-success{margin:0;color:var(--green-deep);font-weight:800}.muted-text{margin:0;color:var(--muted);font-size:13px}@media (max-width:860px){.contact-section,.site-footer,.site-header,.split-heading{align-items:flex-start;flex-direction:column}.site-header{position:static}.site-nav{width:100%;justify-content:flex-start;overflow-x:auto;padding-bottom:4px}.about-layout,.admin-shell,.article-grid,.contact-section,.field-grid,.module-strip,.path-grid,.resource-grid,.unlock-hero{grid-template-columns:1fr}.unlock-board-head{display:none}.course-row{grid-template-columns:1fr;padding:14px;gap:10px}.course-row>div{border-right:0;padding:0}.action-cell,.module-cell,.unlock-cell{justify-content:flex-start}.course-row>div:before{content:attr(data-label);min-width:72px;color:var(--muted);font-size:13px;font-weight:900}.course-cell{display:grid;grid-gap:6px;gap:6px}.course-cell:before{min-width:auto}.hero-section{min-height:620px}.page-hero{padding:32px 22px}.admin-sidebar{position:static}.admin-row{grid-template-columns:1fr}}@media (max-width:480px){.danger-button,.ghost-button,.hero-actions,.primary-button,.secondary-button{width:100%}.admin-form,.admin-login-card,.contact-panel,.path-item,.resource-body,.system-panel{padding:18px}}