:root{--bg:#f4f7f6;--panel:#fff;--text:#17332f;--muted:#61736f;--line:#d8e4e1;--brand:#174a45;--brand2:#246e64;--soft:#e8f3f0;--danger:#b43c46;--warning:#9b6a08;--success:#24744b;--shadow:0 8px 26px rgba(20,65,58,.08);--radius:18px;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:var(--brand2)}.app-shell{min-height:100vh}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;padding:12px max(16px,calc((100vw - 1180px)/2));background:rgba(23,74,69,.96);color:#fff;backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand-mark{width:36px;height:36px;border-radius:12px;background:#fff;color:var(--brand);display:grid;place-items:center;font-size:13px}.brand-text{display:flex;flex-direction:column;line-height:1.08}.brand-text small{font-size:11px;font-weight:600;opacity:.78}.brand-text span{font-size:16px;font-weight:800;margin-top:3px}.top-actions{display:flex;gap:8px}.icon-btn,.ghost-btn,.primary-btn,.secondary-btn,.danger-btn{border:0;border-radius:12px;padding:10px 14px;font-weight:700}.icon-btn{background:rgba(255,255,255,.13);color:#fff}.ghost-btn{background:#f0f5f3;color:var(--text)}.primary-btn{background:var(--brand2);color:#fff}.secondary-btn{background:#fff;color:var(--brand2);border:1px solid #b9d1cb}.danger-btn{background:#fff0f1;color:var(--danger);border:1px solid #efc7ca}button:disabled{opacity:.45;cursor:not-allowed}main{max-width:1180px;margin:0 auto;padding:22px 16px 90px}.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:20px;background:linear-gradient(135deg,#174a45,#28766b);color:#fff;border-radius:26px;padding:30px;box-shadow:var(--shadow);overflow:hidden}.hero h1{font-size:clamp(28px,5vw,48px);line-height:1.15;margin:0 0 14px}.hero p{font-size:17px;line-height:1.75;margin:0;color:#e7f2ef}.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.hero .primary-btn{background:#fff;color:var(--brand)}.hero .secondary-btn{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}.hero-card{align-self:stretch;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.17);border-radius:20px;padding:20px;display:flex;flex-direction:column;justify-content:center}.privacy-line{display:flex;gap:10px;align-items:flex-start;margin:9px 0;color:#eaf4f2}.privacy-line strong{color:#fff}.stepper{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin:22px 0}.step{border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:12px;text-align:left;color:var(--muted);min-height:72px}.step.active{border-color:var(--brand2);box-shadow:0 0 0 2px rgba(36,110,100,.12);color:var(--text)}.step.done{background:var(--soft);color:var(--brand)}.step small{display:block;font-weight:600}.step span{display:block;font-weight:800;margin-top:4px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin:16px 0}.panel h2,.panel h3{margin-top:0}.section-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px}.section-head p{margin:6px 0 0;color:var(--muted);line-height:1.7}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{border:1px solid var(--line);border-radius:16px;padding:17px;background:#fff}.card h3{margin:0 0 8px}.card p{color:var(--muted);line-height:1.65}.direction-card{position:relative;overflow:hidden}.direction-card:before{content:"";position:absolute;left:0;right:0;top:0;height:6px;background:var(--dir-color)}.direction-card.selected{box-shadow:0 0 0 3px color-mix(in srgb,var(--dir-color) 24%,transparent);border-color:var(--dir-color)}.direction-chip{display:inline-flex;padding:6px 10px;border-radius:999px;background:color-mix(in srgb,var(--dir-color) 13%,white);color:var(--dir-color);font-weight:800}.question{border:1px solid var(--line);border-radius:16px;padding:16px;margin:12px 0}.question-top{display:flex;align-items:center;gap:10px;margin-bottom:12px}.question-index{width:29px;height:29px;border-radius:10px;background:var(--soft);display:grid;place-items:center;font-weight:800}.question-text{font-weight:700;line-height:1.55}.scale{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}.scale label{position:relative}.scale input{position:absolute;opacity:0}.scale span{display:grid;place-items:center;border:1px solid var(--line);border-radius:12px;padding:10px 4px;background:#fff;color:var(--muted);font-weight:700}.scale input:checked+span{background:var(--brand2);color:#fff;border-color:var(--brand2)}.scale-legend{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-top:6px}.progress{height:10px;background:#e9efed;border-radius:999px;overflow:hidden}.progress>span{display:block;height:100%;background:var(--brand2);border-radius:999px}.score-row{display:grid;grid-template-columns:88px 1fr 42px;gap:10px;align-items:center;margin:12px 0}.score-label{font-weight:800}.result-banner{border-radius:20px;padding:22px;background:linear-gradient(135deg,#f3f7ff,#eef9f6);border:1px solid var(--line)}.form-row{display:grid;grid-template-columns:180px 1fr;gap:12px;align-items:center;margin:12px 0}select,input[type=text],textarea{width:100%;border:1px solid #cbdad6;border-radius:12px;padding:11px 12px;background:#fff;color:var(--text)}textarea{min-height:96px;resize:vertical}.tool-link{display:flex;justify-content:space-between;gap:12px;align-items:center}.external-note{padding:12px;background:#fff8df;color:#6f5500;border-radius:12px;margin-top:10px}.ability-card{display:grid;grid-template-columns:1fr auto;gap:14px;align-items:start}.rating{display:flex;gap:6px;margin-top:12px}.rating button{width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:#fff;font-weight:800}.rating button.active{background:var(--brand2);color:#fff;border-color:var(--brand2)}.gap-badge{padding:7px 10px;border-radius:999px;font-size:13px;font-weight:800;white-space:nowrap}.gap-3,.gap-4{background:#fee8ea;color:#9b2f3a}.gap-2{background:#fff0c9;color:#795600}.gap-1{background:#edf4ff;color:#315a8b}.gap-0{background:#e7f6ec;color:#236644}.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.filters select{width:auto;min-width:150px}.task-card{border-left:6px solid var(--brand2)}.task-card.selected{border-left-color:#e09a27;background:#fffdf6}.task-meta{display:flex;flex-wrap:wrap;gap:7px;margin:8px 0 13px}.tag{display:inline-flex;padding:5px 9px;border-radius:999px;background:#eef4f2;color:var(--muted);font-size:13px;font-weight:700}.tag.must{background:#e4eefc;color:#315a8b}.tag.direction{background:#e7f4e8;color:#2a6844}.task-detail{display:grid;grid-template-columns:1fr 1fr;gap:13px;margin:14px 0}.detail-box{background:#f8faf9;padding:13px;border-radius:13px}.detail-box strong{display:block;margin-bottom:6px}.task-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.status-select{width:auto;min-width:120px}.empty{text-align:center;padding:34px;color:var(--muted)}.summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.metric{background:#f7faf9;border:1px solid var(--line);border-radius:14px;padding:16px}.metric strong{display:block;font-size:25px;margin-top:6px}.notice{padding:14px 16px;border-radius:14px;background:#eef6f4;color:#285b52;line-height:1.65}.warning{background:#fff6da;color:#725600}.modal-backdrop{position:fixed;inset:0;background:rgba(8,28,25,.55);z-index:50;display:grid;place-items:center;padding:18px}.modal{width:min(620px,100%);max-height:90vh;overflow:auto;background:#fff;border-radius:22px;padding:23px}.modal h2{margin-top:0}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%) translateY(20px);background:#17332f;color:#fff;padding:12px 16px;border-radius:12px;opacity:0;pointer-events:none;transition:.2s;z-index:80}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}.bottom-nav{display:none}.print-only{display:none}details summary{cursor:pointer;font-weight:700;color:var(--brand2)}@media(max-width:900px){.hero{grid-template-columns:1fr}.grid-3{grid-template-columns:repeat(2,1fr)}.stepper{grid-template-columns:repeat(5,150px);overflow:auto;padding-bottom:4px}.summary-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:640px){.topbar{padding:10px 12px}.top-actions .label{display:none}main{padding:14px 12px 92px}.hero{padding:22px;border-radius:20px}.grid-2,.grid-3{grid-template-columns:1fr}.panel{padding:17px}.form-row{grid-template-columns:1fr;gap:5px}.task-detail{grid-template-columns:1fr}.scale span{padding:10px 0;font-size:13px}.summary-grid{grid-template-columns:1fr 1fr}.bottom-nav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;left:0;right:0;bottom:0;z-index:30;background:#fff;border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}.bottom-nav button{border:0;background:transparent;padding:7px 2px;color:var(--muted);font-size:11px}.bottom-nav button.active{color:var(--brand2);font-weight:800}}@media print{.topbar,.bottom-nav,.stepper,.no-print,.hero-actions{display:none!important}body{background:#fff}main{max-width:none;padding:0}.panel,.hero{box-shadow:none;break-inside:avoid}.print-only{display:block}}


/* ===== v0.3: 与教师介绍PPT统一的高识别度视觉层 ===== */
:root{
  --bg:#F5F9FD;--panel:#FFFFFF;--text:#14344B;--muted:#5D7486;--line:#DCE9F2;
  --brand:#0879C9;--brand2:#0AA9C8;--soft:#EAF7FC;
  --ppt-blue:#6C72E8;--ppt-teal:#20B59F;--ppt-orange:#F18B35;--ppt-gold:#D3AE25;--ppt-green:#2F8B72;
  --shadow:0 12px 34px rgba(23,104,158,.10);--radius:20px;
}
body{background:linear-gradient(180deg,#F7FBFE 0,#F3F8FC 45%,#F8FBFD 100%);color:var(--text)}
a{color:#0879C9}.topbar{background:rgba(255,255,255,.96);color:#0879C9;border-bottom:4px solid #19B5E6;box-shadow:0 4px 18px rgba(31,104,150,.08)}
.brand-mark{background:linear-gradient(135deg,#0879C9,#1CC0DF);color:#fff;box-shadow:0 5px 14px rgba(8,121,201,.22)}
.brand-text small{color:#50738C;opacity:1}.brand-text span{color:#0879C9}.icon-btn{background:#EEF7FC;color:#0879C9;border:1px solid #CFE8F5}.icon-btn:hover{background:#DDF3FC}
.primary-btn{background:linear-gradient(135deg,#0879C9,#13AFCF);box-shadow:0 7px 16px rgba(8,121,201,.18)}
.primary-btn:hover{filter:brightness(1.03);transform:translateY(-1px)}
.secondary-btn{color:#0879C9;border-color:#A8D8EE;background:#fff}.ghost-btn{background:#EDF6FA;color:#355A71}
main{max-width:1220px}.hero{position:relative;background:linear-gradient(120deg,#FFFFFF 0%,#F2FAFE 60%,#EAF7FC 100%);color:var(--text);border:1px solid #CFE8F5;box-shadow:0 15px 40px rgba(22,116,173,.12);padding:34px;isolation:isolate}
.hero:before{content:"";position:absolute;width:330px;height:330px;border-radius:50%;right:-115px;top:-150px;background:radial-gradient(circle,#BDEEFF 0,#E5F8FF 46%,transparent 70%);z-index:-1}
.hero:after{content:"";position:absolute;width:230px;height:230px;left:-90px;bottom:-160px;border-radius:46px;transform:rotate(25deg);background:linear-gradient(135deg,rgba(108,114,232,.08),rgba(32,181,159,.08));z-index:-1}
.hero h1{color:#0879C9;letter-spacing:-.02em}.hero p{color:#4E6C80}.hero .primary-btn{background:linear-gradient(135deg,#0879C9,#19B5E6);color:#fff}.hero .secondary-btn{background:#fff;color:#0879C9;border-color:#9DD8EE}
.hero-card{background:#FFFFFF;border:1px solid #CFE8F5;box-shadow:0 8px 24px rgba(22,116,173,.08)}.privacy-line{color:#4D6A7C}.privacy-line strong{color:#163B54}.privacy-line>span{display:grid;place-items:center;min-width:25px;height:25px;border-radius:50%;background:#E1F6F0;color:#18866C;font-weight:900}
.panel{border-color:#D9E8F2;box-shadow:0 10px 28px rgba(23,104,158,.07)}.panel h2{color:#0879C9}.panel h3{color:#1B4057}
.section-head h2:after{content:"";display:block;width:54px;height:4px;border-radius:99px;background:linear-gradient(90deg,#19B5E6,#20B59F);margin-top:9px}
.card{border-color:#DBE8F1;box-shadow:0 4px 14px rgba(25,94,136,.04);transition:.18s ease}.card:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(25,94,136,.09)}
.stepper{gap:10px}.step{position:relative;overflow:hidden;border:1px solid #D8E7F1;background:#fff;padding:14px 13px;box-shadow:0 4px 12px rgba(24,105,155,.05)}.step:before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:#6C72E8}.step:nth-child(2):before{background:#20B59F}.step:nth-child(3):before{background:#F18B35}.step:nth-child(4):before{background:#D3AE25}.step:nth-child(5):before{background:#2F8B72}.step.active{border-color:#8ACCE9;box-shadow:0 0 0 3px rgba(25,181,230,.12),0 8px 22px rgba(23,104,158,.09)}.step.done{background:#F4FAFD;color:#0879C9}
.bottom-nav button:nth-child(1).active{color:#6C72E8}.bottom-nav button:nth-child(2).active{color:#20B59F}.bottom-nav button:nth-child(3).active{color:#F18B35}.bottom-nav button:nth-child(4).active{color:#B79213}.bottom-nav button:nth-child(5).active{color:#2F8B72}
.question{background:#fff;border-color:#DCE9F2}.question-index{background:linear-gradient(135deg,#E7F5FC,#EEF0FF);color:#0879C9}.scale span:hover{border-color:#80CBE7;background:#F4FBFE}.scale input:checked+span{background:linear-gradient(135deg,#0879C9,#18B5D5);border-color:#0879C9}
.result-banner{background:linear-gradient(135deg,#EEF0FF 0%,#EFFCFA 50%,#FFF9EC 100%);border:1px solid #D5E6F1;box-shadow:0 10px 25px rgba(22,116,173,.08)}
.result-banner h2{color:#0879C9}.notice{background:#EAF8F5;color:#245E55;border-left:4px solid #20B59F}.warning{background:#FFF7DF;color:#6C5708;border-left-color:#D3AE25}.external-note{border-left:4px solid #D3AE25}
.ability-card{border-top:4px solid #F18B35}.ability-card small{display:inline-block;color:#C96A20;background:#FFF1E5;border-radius:999px;padding:4px 9px;font-weight:800}.rating button.active{background:linear-gradient(135deg,#F18B35,#F5AB55);border-color:#F18B35}.gap-3,.gap-4{background:#FFE8E9;color:#9B2F3A}.gap-2{background:#FFF0C9;color:#795600}.gap-1{background:#E8F2FF;color:#315A8B}.gap-0{background:#E1F6EC;color:#236644}
.task-card{border-left:7px solid #D3AE25}.task-card.selected{border-left-color:#20B59F;background:linear-gradient(90deg,#F2FCF9,#fff 25%)}.detail-box:nth-child(1){background:#EFF8FF;border-top:3px solid #19B5E6}.detail-box:nth-child(2){background:#F0FAF7;border-top:3px solid #20B59F}.tag.must{background:#E8EDFF;color:#535FC6}.tag.direction{background:#E3F7F0;color:#1B7D68}
.metric:nth-child(1){border-top:5px solid #6C72E8;background:#F5F5FF}.metric:nth-child(2){border-top:5px solid #20B59F;background:#F0FBF8}.metric:nth-child(3){border-top:5px solid #F18B35;background:#FFF6EE}.metric:nth-child(4){border-top:5px solid #D3AE25;background:#FFFBEA}
.direction-card{border-width:1px}.direction-card:before{height:8px}.direction-card.selected{box-shadow:0 0 0 3px color-mix(in srgb,var(--dir-color) 20%,transparent),0 12px 28px rgba(22,116,173,.08)}
details summary{color:#0879C9}.modal-backdrop{background:rgba(12,51,77,.55)}.modal{border:1px solid #D7E8F2;box-shadow:0 18px 50px rgba(11,74,111,.22)}
/* 首页三层模型：与PPT“方向层—能力层—行动层”直接对应 */
.model-band{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:18px 0 0}.model-box{position:relative;border-radius:18px;padding:18px 18px 16px;background:#fff;border:1px solid #DDEAF2;box-shadow:0 6px 18px rgba(18,96,144,.06);overflow:hidden}.model-box:before{content:"";position:absolute;left:0;top:0;right:0;height:6px;background:var(--model-color)}.model-box .model-kicker{font-size:13px;font-weight:900;color:var(--model-color);letter-spacing:.08em}.model-box h3{margin:7px 0 5px;color:#163C54}.model-box p{margin:0;font-size:14px;line-height:1.6;color:#5A7385}.model-arrow{display:none}
.ppt-flow{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:8px}.ppt-flow .flow-card{border-radius:16px;padding:16px;border:1px solid #DDE9F2;background:#fff;position:relative;overflow:hidden;min-height:128px}.ppt-flow .flow-card:before{content:"";position:absolute;left:0;right:0;top:0;height:7px;background:var(--flow)}.flow-num{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:9px;background:color-mix(in srgb,var(--flow) 14%,white);color:var(--flow);font-weight:900}.flow-card h3{font-size:17px;margin:10px 0 5px}.flow-card p{font-size:13px;margin:0}.data-basis{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.data-pill{padding:8px 12px;border-radius:12px;background:#F6FAFC;border:1px solid #DCE9F2;color:#47677B;font-size:13px}.data-pill strong{color:#0879C9;font-size:16px}
.source-strip{margin:14px 0 0;padding:12px 14px;border-radius:14px;background:linear-gradient(90deg,#F0F7FF,#F3FCFA);border:1px dashed #A8D8EA;color:#426478;font-size:13px;line-height:1.6}.source-strip strong{color:#0879C9}
@media(max-width:900px){.model-band{grid-template-columns:1fr}.ppt-flow{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.ppt-flow{grid-template-columns:1fr}.hero h1{font-size:34px}.hero{padding:23px}.topbar{border-bottom-width:3px}.section-head h2:after{height:3px}}

/* ===== v1.2 ICP footer ===== */
.site-footer{max-width:1220px;margin:0 auto;padding:8px 16px 28px;text-align:center;color:#7A8E9C;font-size:13px;line-height:1.7}.site-footer a{color:#657F90;text-decoration:none}.site-footer a:hover{color:#0879C9;text-decoration:underline}@media(max-width:640px){.site-footer{padding:10px 16px 82px;font-size:12px}}@media print{.site-footer{display:none!important}}