:root{--accent:#5d2d15;--ink:#3c2c24;--muted:#908681;--line:#e9e5e3;--paper:#f7f4f2;--red:#b93439}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font:14px/1.7 'Microsoft YaHei','PingFang SC',sans-serif}button,input,select{font:inherit}button,a,label{ -webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #cbb1a4;outline-offset:3px}.sidebar{position:fixed;inset:0 auto 0 0;width:242px;padding:34px 23px;background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;z-index:5}.brand{display:flex;align-items:center;gap:12px;font-size:21px;font-weight:700;letter-spacing:2px}.brand-icon{display:grid;place-items:center;width:43px;height:43px;background:var(--accent);color:#fff;border-radius:13px;font-size:23px}.brand small{display:block;font-size:8px;letter-spacing:2.5px;color:var(--muted);line-height:1.8}.nav-label{font-size:10px;color:#aaa3a0;letter-spacing:2px;margin:48px 15px 15px}nav a{display:flex;gap:13px;align-items:center;padding:13px 15px;margin-bottom:8px;border-radius:9px;font-size:18px;color:#867a74}nav a span{font-size:13px}nav a em{font-size:10px;font-style:normal;margin-left:auto;opacity:.7}nav a.active{background:#f1ebe8;color:var(--accent);font-weight:700}.sidebar-note{margin-top:auto;background:#f5f0ed;border-radius:12px;padding:24px 19px;position:relative;overflow:hidden}.sidebar-note>span{font-size:19px;font-weight:600;line-height:1.8}.sidebar-note p{font-size:9px;color:var(--muted)}.tiny-art{position:absolute;right:3px;bottom:-30px;font-size:100px;color:#e3d1c8;line-height:1}.local-note{font-size:10px;color:#a09792;margin:23px 0 0 11px}.local-note i{display:inline-block;width:6px;height:6px;border-radius:50%;background:#977b6d;margin-right:7px}.shell{margin-left:242px}header{height:79px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 44px;background:#fcfaf9;font-size:11px;color:var(--muted)}.header-right{display:flex;align-items:center;gap:22px}.header-right b{background:#ebe2de;border:3px solid #fff;display:grid;place-items:center;width:35px;height:35px;border-radius:50%;color:var(--accent)}main{max-width:1320px;margin:auto;padding:35px 44px 25px}h1,h2,h3,p{margin:0}h1{font-size:28px;letter-spacing:1px;font-weight:650}h2{font-size:19px;font-weight:650}h3{font-size:16px}.eyebrow{color:#8f8079;font-size:10px;letter-spacing:2px;margin-bottom:7px}.intro{display:flex;justify-content:space-between;align-items:end;margin-bottom:26px}.sub{font-size:12px;color:var(--muted);margin-top:7px}.date-chip{padding:6px 12px;border:1px solid #e4ddd9;border-radius:6px;font-size:10px;color:#8d7f78}.hero{border-radius:15px;min-height:245px;background:#5d2d15;color:#fff;padding:35px 36px;position:relative;overflow:hidden;display:flex;align-items:center;margin-bottom:24px}.hero h2{font-size:30px;line-height:1.7;letter-spacing:2px;position:relative;z-index:1}.hero p{font-size:12px;color:#dbccc5;margin:11px 0 24px}.hero-tag{font-size:9px;letter-spacing:2px;color:#d8c6bd;margin-bottom:9px}.hero .primary{background:#edc9b8;color:#493023;border:0}.hero-art{position:absolute;right:7%;top:25px;width:240px;height:240px}.hero-art .ring{border:1px solid #78a59166;border-radius:50%;position:absolute;inset:0}.hero-art .r2{inset:27px}.hero-art .r3{inset:55px}.hero-art .spark{font-size:125px;color:#e3b9a4;position:absolute;left:59px;top:20px;transform:rotate(13deg)}.hero-art .orbit{width:36px;height:36px;background:#b5a197;border-radius:50%;position:absolute;right:0;top:38px}.hero-art .square{height:56px;width:56px;border:1px solid #d3e3a488;transform:rotate(20deg);position:absolute;left:1px;bottom:16px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:17px;margin-bottom:33px}.stat{border:1px solid var(--line);border-radius:11px;background:#fff;padding:18px 22px;display:flex;align-items:center;gap:17px}.stat-icon{background:#f4ede9;border-radius:11px;display:grid;place-items:center;width:44px;height:44px;font-size:21px;color:#846d62}.stat small{display:block;font-size:10px;color:var(--muted)}.stat strong{font-size:24px;font-weight:600;line-height:1.6}.stat strong span{font-size:11px;font-weight:400;color:var(--muted);margin-left:7px}.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:17px}.section-head a{font-size:11px;color:#84746c}.courses{display:grid;grid-template-columns:1.1fr 1fr;gap:20px}.course{background:#fff;border:1px solid var(--line);border-radius:13px;padding:26px;position:relative;overflow:hidden;transition:transform .2s,border-color .2s}.course:hover{transform:translateY(-3px);border-color:#b8a69d}.course-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:21px}.course-icon{width:48px;height:48px;border-radius:13px;background:#f0eae7;color:var(--accent);font-size:21px;display:grid;place-items:center;font-weight:600}.course.pf .course-icon{background:#f3eeda;color:#9b834d}.pill{font-size:9px;padding:3px 9px;border-radius:20px;background:#f5f1ef;color:#91827b}.course h2{font-size:21px}.course p{font-size:11px;color:var(--muted);margin:9px 0 18px}.tags{display:flex;gap:7px;flex-wrap:wrap}.tags span{background:#f7f4f2;padding:3px 8px;font-size:9px;color:#8b807b;border-radius:4px}.course-bottom{display:flex;justify-content:space-between;align-items:center;margin-top:24px;padding-top:18px;border-top:1px solid #f0ebe9;font-size:10px;color:#9a928e}.course-bottom b{color:var(--accent);font-size:12px}.info{margin-top:24px;border:1px solid #e9e0dc;border-radius:10px;padding:17px 20px;background:#f3ece8;font-size:11px;color:#907b70;display:flex;gap:14px}.info b{color:#76645b}.primary,.secondary{border-radius:7px;padding:10px 19px;display:inline-block;font-size:12px;border:1px solid var(--accent);background:var(--accent);color:#fff}.secondary{background:#fff;color:var(--accent);border-color:#e4ddda}.secondary:hover{background:#f2ece9}.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:20px 0}.toolbar input{background:#fff;border:1px solid var(--line);border-radius:8px;padding:11px 15px;flex:1;min-width:180px}.toolbar select,.toolbar button{border:1px solid var(--line);background:#fff;padding:10px 13px;border-radius:7px;font-size:12px}.toolbar button.on{color:var(--accent);background:#ede2dd;border-color:#b6a197}.set-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}.set-card{padding:23px;background:#fff;border:1px solid var(--line);border-radius:12px}.set-no{font:24px Georgia;color:#b6a59c}.set-card h3{margin:10px 0 7px}.set-card .sub{font-size:10px}.set-card .row{margin-top:18px;display:flex;align-items:center;justify-content:space-between}.bar{height:5px;background:#f1ebe8;border-radius:5px;overflow:hidden;margin:17px 0 5px}.bar i{display:block;height:100%;background:#9c7a6a}.reader-layout{display:grid;grid-template-columns:minmax(0,1fr) 215px;gap:23px;align-items:start}.reader{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}.reader img{display:block;width:100%;cursor:zoom-in}.reader-top{display:flex;justify-content:space-between;padding:13px 19px;background:#fff;border-bottom:1px solid var(--line);font-size:11px;color:#8b807b}.reader-tools{position:sticky;top:18px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:17px}.reader-tools h3{font-size:13px}.page-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:5px;margin:14px 0}.page-grid button{border:1px solid var(--line);border-radius:4px;background:#fff;padding:5px 0;color:#87776f;font-size:10px}.page-grid button.active{background:var(--accent);color:white}.page-grid button.done{box-shadow:inset 0 -3px #b58d79}.reader-tools .primary,.reader-tools .secondary{display:block;width:100%;margin:8px 0;text-align:center;padding:8px}.reader-tools p{font-size:10px;color:var(--muted);margin-top:13px}.reader-bottom{display:flex;justify-content:space-between;margin:18px 0}.question{border:1px solid var(--line);background:#fff;border-radius:12px;padding:24px;margin:15px 0}.q-meta{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:#a1948e}.q-meta button{border:0;background:none;color:#94847c;font-size:12px}.question h3{font-size:17px;line-height:1.9;margin:15px 0 18px;font-weight:500}.option{border:1px solid #ede8e5;border-radius:7px;padding:11px 14px;margin:8px 0;display:flex;align-items:center;gap:12px;cursor:pointer}.option .letter{border:1px solid #e4dbd7;border-radius:4px;min-width:25px;height:25px;text-align:center;font-size:11px}.option.recommended{color:var(--red);border-color:#ecd0d0;background:#fff8f7}.option.recommended .letter{color:var(--red);border-color:#e2b6b8}.option.selected{box-shadow:0 0 0 2px #a79084}.option em{font-style:normal;font-size:9px;margin-left:auto;white-space:nowrap}.q-foot{display:flex;justify-content:space-between;align-items:center;margin-top:18px;font-size:10px;color:#a49791;gap:12px}.q-foot button{padding:6px 13px;font-size:11px}.empty{background:#fff;text-align:center;padding:65px 20px;border:1px dashed #d8cbc5;border-radius:12px;color:#95867e}.pagination{display:flex;align-items:center;justify-content:center;gap:16px;margin:25px 0;font-size:12px}.pagination button{padding:8px 16px;border:1px solid var(--line);background:#fff;border-radius:6px}button:disabled{opacity:.35;cursor:default}.back{font-size:11px;color:#8f7d74;display:inline-block;margin-bottom:18px}footer{padding:24px 44px 30px;color:#a89c96;font-size:10px;display:flex;gap:14px;align-items:center}footer span{margin-right:auto}footer button,.import-label{border:0;background:none;color:#927e74;cursor:pointer;font-size:10px;padding:0}#toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%);border-radius:8px;padding:12px 24px;background:#3d2c24;color:#fff;display:none;z-index:20}dialog{border:0;border-radius:9px;max-width:97vw;width:1200px;padding:10px;background:#fff}dialog::backdrop{background:#15281fe0}dialog img{width:100%}dialog button{position:sticky;top:0;float:right;padding:10px 20px;background:var(--accent);color:#fff;border:0;border-radius:7px}.count-note{font-size:11px;color:#998a82}.notice{font-size:11px;background:#f2e9e5;color:#857167;border-radius:8px;padding:13px 17px;margin:15px 0}.inline-check{color:#80675a;font-size:11px}.notes{width:100%;border:1px solid var(--line);border-radius:6px;min-height:70px;resize:vertical;font:11px/1.7 inherit;padding:7px;margin-top:8px}@media(min-width:1600px){main{padding-top:45px}}@media(max-width:1100px){.sidebar{width:205px;padding:28px 16px}.shell{margin-left:205px}main{padding:28px}.hero-art{right:2%;opacity:.6}.hero h2{font-size:27px}.reader-layout{grid-template-columns:minmax(0,1fr) 180px}header{padding:0 28px}.stat{padding:15px;gap:11px}.stat-icon{width:34px;height:34px}}@media(max-width:760px){.sidebar{position:sticky;top:0;width:100%;padding:10px 17px;border-right:0;border-bottom:1px solid var(--line);flex-direction:row;align-items:center;gap:20px}.brand{font-size:16px;gap:8px;white-space:nowrap}.brand-icon{width:31px;height:31px;font-size:17px;border-radius:8px}.brand small,.nav-label,.sidebar-note,.local-note{display:none}nav{display:flex;gap:2px;margin-left:auto}nav a{font-size:0;padding:8px;margin:0;gap:0}nav a span{font-size:10px}nav a em{display:none}.shell{margin-left:0}header{height:45px;padding:0 20px}.header-right{display:none}main{padding:23px 18px}h1{font-size:24px}.date-chip{display:none}.hero{min-height:235px;padding:25px}.hero h2{font-size:25px}.hero-art{right:-75px;opacity:.35}.hero p{max-width:220px}.stats{gap:8px;margin-bottom:25px}.stat{padding:12px;gap:0;display:block}.stat-icon{display:none}.stat strong{font-size:22px}.stat small{font-size:9px}.courses,.set-grid{grid-template-columns:1fr}.course{padding:22px}.reader-layout{display:flex;flex-direction:column-reverse}.reader-tools{position:static;width:100%}.page-grid{grid-template-columns:repeat(10,1fr)}.reader-tools p{margin:0}.reader-tools .primary,.reader-tools .secondary{display:inline-block;width:auto;margin-right:5px}.reader{width:100%}.reader-tools textarea,.reader-tools label{display:none}.toolbar{gap:7px}.toolbar input{width:100%;flex-basis:100%}.question{padding:18px}.question h3{font-size:16px}.q-foot{align-items:start}.q-foot span{max-width:68%}footer{padding:20px 18px;gap:10px}.info{font-size:10px;padding:14px}.intro{margin-bottom:20px}}
