/* Main reading portal: cream paper, graphite typography, warm orange accents. */
:root{--paper:#f7f5ef;--surface:#fffefa;--ink:#252722;--muted:#777b70;--line:#dedfd4;--accent:#db723d;--soft-orange:#f5e2d2;--radius:16px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body.portal{margin:0;background:var(--paper);color:var(--ink);font:14px/1.75 "Microsoft YaHei","PingFang SC",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
body.portal a{color:inherit;text-decoration:none}
body.portal button,body.portal input{font:inherit}
body.portal button{cursor:pointer}
body.portal img{display:block;max-width:100%;height:auto}
body.portal h1,body.portal h2,body.portal h3,body.portal p{overflow-wrap:anywhere}
body.portal h1,body.portal h2,body.portal h3{line-height:1.4}
body.portal a,body.portal button,body.portal input{-webkit-tap-highlight-color:transparent}
body.portal a:focus-visible,body.portal button:focus-visible,body.portal input:focus-visible,body.portal summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
body.portal .wrap{width:min(1320px,calc(100% - 72px));margin-inline:auto}
body.portal .skip-link{position:absolute;left:12px;top:-70px;padding:9px 15px;background:var(--ink);color:white;z-index:100}
body.portal .skip-link:focus{top:10px}
.topbar{background:#282d26;color:#cdd1c4;font-size:10px;letter-spacing:1.3px}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:33px}
.topbar a:hover{color:#fff}
.topbar span:last-child{color:#9ba492}
.site-header{background:var(--surface);border-bottom:1px solid var(--line)}
.header-row{display:flex;align-items:center;gap:31px;min-height:94px}
.brand{display:inline-flex;align-items:center;gap:11px;font-size:25px;font-weight:900;letter-spacing:-1px;white-space:nowrap}
.brand b,.brand .brand-mark,.brand .logo-mark{display:inline-grid;place-items:center;width:43px;height:43px;background:var(--ink);color:var(--surface);border-radius:12px;font-size:21px;letter-spacing:-1px;line-height:1}
.brand .brand-dot{color:var(--accent)}
.header-row nav{display:flex;align-items:center;gap:28px;margin-left:auto;white-space:nowrap;font-size:13px;font-weight:600}
.header-row nav a{position:relative;padding:8px 0}
.header-row nav a:hover,.header-row nav a[aria-current=page]{color:#b65c31}
.header-row nav a[aria-current=page]:after{content:"";height:2px;position:absolute;bottom:0;left:0;right:0;background:var(--accent)}
.search-form{display:flex;align-items:center;background:#f4f4ed;border:1px solid #dddfd2;border-radius:8px;overflow:hidden;min-width:0}
.search-form input{border:0;outline:0;background:transparent;color:var(--ink);width:155px;min-width:0;padding:9px 12px;font-size:12px}
.search-form input::placeholder{color:#969c8c}
.search-form button{align-self:stretch;border:0;background:transparent;padding:8px 12px;color:#68715f;font-size:13px}
.search-form button:hover{background:#e9eddf;color:var(--ink)}
.hero{display:grid;grid-template-columns:1.45fr 1fr;gap:55px;align-items:center;padding:58px 0 42px}
.eyebrow{font-size:10px;font-weight:800;letter-spacing:2.7px;color:#a66b44}
.eyebrow:before{content:"";display:inline-block;width:18px;height:2px;background:var(--accent);vertical-align:middle;margin-right:10px}
.hero h1{font-size:clamp(34px,4.2vw,57px);line-height:1.28;letter-spacing:-2px;margin:19px 0 22px;font-weight:900;max-width:790px}
.hero h1 em,.hero h1 strong{font-style:normal;color:#c1693e;font-weight:900}
.hero-copy>p{font-size:14px;line-height:1.95;color:#7c8074;max-width:625px;margin:0}
.hero-actions{display:flex;align-items:center;gap:22px;margin-top:28px;flex-wrap:wrap}
.hero-actions a{display:inline-flex;align-items:center;justify-content:center;gap:25px;font-size:12px;font-weight:700;border-bottom:1px solid #b6bcab;padding:9px 0}
.hero-actions a:first-child{background:#2c3428;color:#f6f6ef;border:1px solid #2c3428;border-radius:7px;padding:11px 18px}
.hero-actions a:first-child:hover{background:#414c39}
.hero-actions a:last-child:hover{color:#b55c31}
.hero-aside{position:relative;display:flex;justify-content:center;align-items:center;min-height:270px}
.orbit-art{position:relative;width:330px;height:270px;isolation:isolate;transform:rotate(-6deg)}
.orbit-art:before{content:"";position:absolute;width:230px;height:230px;left:35px;top:17px;border-radius:50%;border:1px solid #c6ccba;background:radial-gradient(circle at center,transparent 0 42%,#e7ebdd 42% 43%,transparent 43% 60%,#e7ebdd 60% 61%,transparent 61%)}
.orbit-art:after{content:"";position:absolute;left:112px;top:85px;width:95px;height:95px;border-radius:26px;background:#2f3c2c;transform:rotate(18deg);box-shadow:15px 13px 0 #e1e6d5;z-index:-1}
.orbit-art .orbit-dot,.orbit-art .dot{position:absolute;width:29px;height:29px;border-radius:50%;background:#da8151;left:242px;top:48px;box-shadow:0 0 0 8px #f5eee3}
.orbit-art .orbit-line,.orbit-art .line{position:absolute;left:24px;right:19px;top:138px;height:1px;background:#c3cbb7;transform:rotate(-25deg);z-index:-2}
.orbit-art .orbit-label,.orbit-art .label{position:absolute;font-size:10px;font-weight:700;letter-spacing:1.5px;color:#7d8b70;bottom:3px;left:79px;transform:rotate(6deg)}
.orbit-art strong,.orbit-art .orbit-center{position:absolute;left:118px;top:99px;width:85px;text-align:center;font-size:29px;font-weight:900;color:#f8f5e8;transform:rotate(6deg);line-height:1.3}
.orbit-art .orbit-card{position:absolute;left:2px;top:46px;padding:10px 14px;border-radius:7px;background:#fffefa;border:1px solid #dfe1d4;font-size:11px;box-shadow:0 9px 20px #3f4a2f0a;transform:rotate(9deg)}
.orbit-art .orbit-card:last-child{left:auto;right:0;top:auto;bottom:35px;transform:rotate(2deg)}
.quick-links{display:flex;align-items:center;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0}
.quick-links>span{font-size:10px;font-weight:800;color:#9a9f8e;letter-spacing:1px;margin-right:10px}
.quick-links a{display:inline-flex;align-items:center;gap:20px;font-size:12px;background:var(--surface);border:1px solid #dedfd4;border-radius:25px;padding:6px 14px}
.quick-links a:hover{border-color:#c4936f;background:#fbf0e4;color:#a25c34}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;padding-top:43px;margin-bottom:21px}
.section-head h2{font-size:27px;letter-spacing:-1px;margin:0 0 9px;font-weight:800}
.section-head p{font-size:12px;color:var(--muted);margin:0;line-height:1.8}
.section-head>a{font-size:12px;white-space:nowrap;border-bottom:1px solid #b7beaa;padding-bottom:3px}
.section-head .section-label{font-size:10px;color:#9a9e8f;letter-spacing:2px}
.filter-bar{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:22px 0 12px}
.filter-bar button{border:1px solid #daddcf;border-radius:7px;background:transparent;color:#6e7762;padding:7px 14px;font-size:12px;transition:background .15s,border-color .15s,color .15s}
.filter-bar button:hover{background:#e9eddf;border-color:#adb89e}
.filter-bar button[aria-pressed=true]{background:#2e3828;border-color:#2e3828;color:#f6f5e9}
.search-status{font-size:11px;color:#909785;margin-bottom:18px;min-height:18px}
.portal-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:29px;align-items:start}
.site-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 20px;min-width:0}
.site-card{min-width:0;border:1px solid #dddfd3;background:var(--surface);border-radius:13px;overflow:hidden;box-shadow:0 2px 2px #3f4a2f03;transition:transform .18s,box-shadow .18s,border-color .18s}
.site-card:hover{transform:translateY(-4px);box-shadow:0 12px 22px #3f4a2f0b;border-color:#c5ccb8}
.card-image{display:block;position:relative;overflow:hidden;background:#e7ecde;border-bottom:1px solid #e2e4d8}
.card-image img{width:100%;aspect-ratio:1200/630;object-fit:contain;transition:transform .35s}
.site-card:hover .card-image img{transform:scale(1.025)}
.card-body{padding:19px 18px 16px}
.card-number{font-family:Georgia,serif;font-size:11px;color:#a7ad9b;margin-right:10px}
.card-group{display:inline-block;padding:3px 7px;border-radius:4px;font-size:9px;line-height:1.5;letter-spacing:.5px;background:#eef1e7;color:#657650;font-weight:600}
.group-a .card-group,.card-group.group-a{background:#f7e6d8;color:#a4683e}
.group-b .card-group,.card-group.group-b{background:#e5ebf4;color:#657c9c}
.group-c .card-group,.card-group.group-c{background:#e9efdf;color:#657e4b}
.group-d .card-group,.card-group.group-d{background:#eee7f0;color:#8a6a92}
.card-body h3{font-size:18px;line-height:1.5;letter-spacing:-.6px;margin:11px 0 10px;font-weight:800}
.card-body h3 a:hover{color:#b7673d}
.card-body>p{font-size:11px;line-height:1.9;color:#7d8373;margin:0;min-height:62px}
.card-footer{display:flex;justify-content:space-between;align-items:center;gap:10px;border-top:1px solid #eeeee5;margin-top:16px;padding-top:13px;font-size:10px;color:#9a9f8e}
.card-footer a{color:#6c7a59;display:inline-flex;align-items:center;gap:8px;font-size:11px}
.card-footer a:hover{color:#b7673d}
.portal-sidebar{position:sticky;top:22px;min-width:0}
.portal-sidebar>section,.portal-sidebar>div{background:#f0f1e7;border:1px solid #d9decf;border-radius:12px;padding:22px;margin-bottom:19px}
.portal-sidebar h2{font-size:18px;letter-spacing:-.5px;margin:0 0 17px}
.portal-sidebar h3{font-size:14px;margin:17px 0 10px}
.portal-sidebar p{font-size:11px;line-height:1.9;color:#879078;margin:0 0 15px}
.portal-sidebar .sidebar-eyebrow{font-size:9px;letter-spacing:2px;font-weight:700;color:#9da68c;display:block;margin-bottom:10px}
.sidebar-link{display:flex;justify-content:space-between;align-items:center;gap:14px;border-top:1px solid #d8decd;padding:13px 0;font-size:12px;font-weight:600}
.sidebar-link:after{content:"↗";color:#91a080;font-size:13px;font-weight:400}
.sidebar-link:hover{color:#b26539}
.reading-steps{padding:0;margin:0;list-style:none;counter-reset:step}
.reading-steps li{counter-increment:step;position:relative;padding:13px 0 15px 31px;border-top:1px solid #d8decd;font-size:12px;line-height:1.7}
.reading-steps li:before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:13px;font-family:Georgia,serif;font-style:italic;color:#9ba98c;font-size:16px}
.reading-steps li small,.reading-steps li p{display:block;font-size:10px;line-height:1.8;color:#8d9780;margin:5px 0 0}
.reading-steps li b{font-size:12px;font-weight:600}
.portal-sidebar .sidebar-note{background:#2e3a29;color:#f1f4e8;border-color:#2e3a29;position:relative;overflow:hidden}
.sidebar-note h2{color:#edf2e4;font-size:20px;line-height:1.5}
.portal-sidebar .sidebar-note p{color:#b9c7ad}
.sidebar-note a{color:#dce9cf;font-size:11px;border-bottom:1px solid #7d9470;padding-bottom:4px}
.sidebar-note:after{content:"＋";position:absolute;right:5px;bottom:-40px;color:#42503b;font-size:150px;line-height:1;pointer-events:none}
.empty-state{padding:45px 25px;border:1px dashed #c8cfbb;border-radius:12px;background:#f1f3e9;text-align:center;color:#839071;font-size:13px;grid-column:1/-1}
.topic-notes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:43px;border-top:1px solid var(--line);padding-top:31px}
.topic-notes article{border-left:2px solid #d7ddca;padding:4px 19px;min-width:0}
.topic-notes article:first-child{border-color:#d49a72}
.topic-notes article>span{font-size:10px;letter-spacing:1.5px;color:#9b9f8b;font-weight:700}
.topic-notes h2,.topic-notes h3{font-size:18px;letter-spacing:-.4px;margin:10px 0 13px}
.topic-notes p{font-size:12px;color:#7d8670;line-height:1.9;margin:0 0 15px}
.topic-notes a{font-size:11px;color:#9a633e;border-bottom:1px solid #d3bea6;padding-bottom:3px}
.home-faq{display:grid;grid-template-columns:minmax(210px,.8fr) minmax(0,1.6fr);gap:65px;border-top:1px solid var(--line);padding:37px 0 15px;margin:44px 0 10px}
.faq-header>span,.faq-header .eyebrow{font-size:10px;color:#a37551;font-weight:700;letter-spacing:1.7px}
.faq-header h2{font-size:28px;line-height:1.5;letter-spacing:-1px;margin:13px 0 16px}
.faq-header p{font-size:12px;line-height:1.9;color:#818976;max-width:320px;margin:0 0 18px}
.faq-header a{font-size:11px;color:#93633f;border-bottom:1px solid #c7bba5;padding-bottom:4px}
.faq-item{border-top:1px solid #dce0d2}
.faq-item:last-child{border-bottom:1px solid #dce0d2}
.faq-item summary{display:flex;align-items:baseline;gap:15px;padding:19px 0;cursor:pointer;list-style:none;font-size:14px;font-weight:600}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary>.faq-question,.faq-item summary>span:nth-child(2){flex:1}
.faq-item summary:after{content:"＋";font-size:19px;font-weight:400;color:#a5af96;margin-left:auto}
.faq-item[open] summary:after{content:"−"}
.faq-item summary i{display:none}
.faq-number{font-family:Georgia,serif;color:#a9b19b;font-size:12px;font-style:italic;font-weight:400}
.faq-answer{padding:0 25px 21px 28px;font-size:12px;line-height:1.95;color:#7c8570}
.faq-answer p{margin:0}
.site-footer{background:#2b3328;color:#dce3d3;border-top:0;margin-top:50px;padding:34px 0 29px}
.site-footer .wrap,.site-footer .footer-inner{display:flex;align-items:start;justify-content:space-between;gap:26px;flex-wrap:wrap}
.site-footer .footer-brand{font-size:22px;font-weight:800;letter-spacing:-.5px}
.site-footer .footer-links{display:flex;flex-wrap:wrap;gap:23px;font-size:11px;color:#bdc8b1}
.site-footer p,.site-footer small,.site-footer .footer-note{font-size:10px;line-height:1.9;color:#96a48a}
.site-footer .footer-note{width:100%;border-top:1px solid #414d38;padding-top:18px;margin-top:3px}
.site-footer a:hover{color:#f4edda}
[hidden]{display:none!important}
@media(max-width:1180px){.header-row{gap:22px}.header-row nav{gap:20px}.portal-layout{grid-template-columns:minmax(0,1fr) 240px;gap:22px}.site-grid{gap:20px 16px}.card-body{padding:17px 15px 15px}.card-body h3{font-size:17px}.card-body>p{font-size:11px}.portal-sidebar>section,.portal-sidebar>div{padding:20px}.hero{gap:30px}}
@media(max-width:1020px){body.portal .wrap{width:calc(100% - 48px)}.header-row{flex-wrap:wrap;padding-block:20px;gap:16px}.header-row nav{order:3;width:100%;justify-content:space-between;margin:0;font-size:12px}.header-row .search-form{margin-left:auto}.hero{grid-template-columns:1.4fr 1fr;padding-top:43px}.hero h1{font-size:43px}.orbit-art{transform:rotate(-6deg) scale(.84);width:300px}.portal-layout{grid-template-columns:minmax(0,1fr) 230px}.site-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.card-body>p{min-height:60px}.hero-actions{gap:15px}.topic-notes{gap:17px}.topic-notes article{padding-inline:15px}.home-faq{gap:35px}}
@media(max-width:760px){body.portal .wrap{width:calc(100% - 36px)}.topbar{letter-spacing:.5px}.topbar .wrap{gap:12px;font-size:9px}.hero{grid-template-columns:1fr;padding:35px 0 30px;gap:0}.hero h1{font-size:41px;max-width:600px;letter-spacing:-1.8px}.hero-copy>p{font-size:13px;max-width:570px}.hero-aside{display:none}.quick-links{gap:8px;padding:15px 0}.quick-links>span{width:100%;margin:0 0 3px}.quick-links a{font-size:11px;padding:6px 12px}.section-head{padding-top:32px;gap:15px}.section-head h2{font-size:25px}.section-head p{font-size:11px}.portal-layout{grid-template-columns:1fr}.site-grid{gap:20px}.portal-sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:10px}.portal-sidebar>section,.portal-sidebar>div{margin:0}.portal-sidebar .sidebar-note{grid-column:1/-1}.topic-notes{grid-template-columns:1fr;margin-top:32px;padding-top:25px;gap:23px}.topic-notes article{padding:0 0 0 17px}.topic-notes h2,.topic-notes h3{margin-top:7px}.topic-notes p{margin-bottom:10px}.home-faq{grid-template-columns:1fr;gap:23px;margin-top:30px;padding-top:28px}.faq-header h2{font-size:25px;margin:9px 0 12px}.faq-header p{max-width:none;margin-bottom:10px}.faq-item summary{font-size:13px;padding:18px 0}.faq-answer{font-size:12px;padding-left:25px}.site-footer{margin-top:33px}.site-footer .footer-links{gap:17px}.hero-actions{margin-top:24px}}
@media(max-width:480px){.topbar .wrap>span:last-child{display:none}.header-row{gap:14px;padding-block:17px;min-height:0}.brand{font-size:22px;gap:9px}.brand b,.brand .brand-mark,.brand .logo-mark{width:37px;height:37px;font-size:19px;border-radius:10px}.search-form input{width:100px;padding:8px;font-size:11px}.search-form button{padding-inline:9px}.header-row nav{gap:9px;flex-wrap:wrap;justify-content:flex-start;font-size:11px}.header-row nav a{padding:5px 0}.hero h1{font-size:35px;letter-spacing:-1.2px}.hero-copy>p{font-size:12px}.eyebrow{font-size:9px;letter-spacing:1.7px}.hero-actions{gap:17px;font-size:11px}.hero-actions a{font-size:11px}.hero-actions a:first-child{padding:10px 15px}.site-grid{grid-template-columns:1fr}.card-image img{aspect-ratio:1.75}.card-body{padding:20px}.card-body h3{font-size:20px;margin-top:12px}.card-body>p{min-height:0;font-size:12px}.card-footer{margin-top:18px;font-size:11px}.card-footer a{font-size:12px}.card-group{font-size:10px}.portal-sidebar{grid-template-columns:1fr}.portal-sidebar .sidebar-note{grid-column:auto}.section-head{align-items:start;flex-direction:column;gap:10px}.section-head h2{font-size:24px}.filter-bar{gap:7px}.filter-bar button{font-size:11px;padding:6px 10px}.search-status{font-size:10px}.site-footer .wrap,.site-footer .footer-inner{gap:20px}.site-footer .footer-links{gap:13px}.faq-item summary{gap:11px}.faq-answer{padding-left:23px;padding-right:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}body.portal *,body.portal *:before,body.portal *:after{transition:none!important;animation:none!important}}