:root{
  --outer:#eee7da;--paper:#fbfaf6;--white:#fff;--ink:#243a34;--muted:#66776e;
  --green:#214d41;--green-dark:#173d34;--sage:#e9f1ea;--line:#e4e7df;
  --gold:#c99569;--sand:#f3e9d7;--red:#a14f45;--shadow:0 18px 55px rgba(35,58,47,.11);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--outer);color:var(--ink);font:15px/1.65 "Microsoft YaHei","PingFang SC",system-ui,sans-serif}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.48}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid #65977f;outline-offset:3px}
h1,h2,h3,p{margin-top:0}
h1,h2{font-family:"Noto Serif SC","Songti SC","STSong","SimSun",serif;font-weight:500;letter-spacing:-.025em}
.shell,.welcome{width:min(100%,430px);min-height:100dvh;margin:auto;background:var(--paper);box-shadow:0 0 70px rgba(44,54,39,.09)}
.shell{padding-bottom:calc(72px + env(safe-area-inset-bottom,0px))}
.sidebar,.topbar{display:none}
.mobile-header{height:58px;padding:0 21px;display:flex;align-items:center;justify-content:space-between;background:var(--paper);position:sticky;top:0;z-index:30}
.brand-word{font-family:"Noto Serif SC","Songti SC","STSong","SimSun",serif;font-size:19px;font-weight:700;letter-spacing:.08em;color:var(--green-dark)}
.brand-word span{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:10px;font-weight:500;letter-spacing:.05em;color:#708479}
.header-user{font-size:12px;color:#61766b;display:flex;align-items:center;gap:7px;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.header-user-dot{width:7px;height:7px;border-radius:50%;background:#8daa93;flex:none}
.mobile-nav{position:fixed;z-index:50;bottom:0;left:50%;transform:translateX(-50%);width:min(100%,430px);height:calc(70px + env(safe-area-inset-bottom,0px));display:flex;align-items:stretch;padding:5px 14px env(safe-area-inset-bottom,0px);background:rgba(251,250,246,.97);border-top:1px solid #e1e4d9;box-shadow:0 -8px 30px rgba(34,56,42,.05);backdrop-filter:blur(18px)}
.mobile-nav button{flex:1;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:2px;border:0;background:transparent;color:#84958b;padding:4px 0;position:relative}
.mobile-nav button.active{color:var(--green-dark);font-weight:800}
.mobile-nav button.active:before{content:"";width:24px;height:2px;background:var(--green);position:absolute;top:-6px}
.nav-index{font-family:Georgia,serif;font-size:18px;line-height:1.05;letter-spacing:-.06em}
.mobile-nav small{font-size:11px;letter-spacing:.07em}
.main{padding:0 20px 30px;min-width:0}
.eyebrow{font-size:10px;letter-spacing:.18em;font-weight:800;color:#658274;text-transform:uppercase}
.primary{display:inline-flex;justify-content:space-between;align-items:center;gap:12px;min-height:52px;padding:12px 18px;border:0;border-radius:13px;background:var(--green);color:#fff;font-weight:700;box-shadow:0 9px 22px rgba(30,79,62,.15)}
.primary:hover{background:#2b6553}
.primary span{font-size:20px;font-weight:400;line-height:1}
.secondary,.muted-button{min-height:42px;padding:10px 14px;border:1px solid #b7c9bc;border-radius:11px;background:transparent;color:var(--green);font-weight:700}
.back{display:block;border:0;background:transparent;padding:15px 0 13px;color:var(--green);font-size:13px;font-weight:700}
.statuspill{display:inline-flex;align-items:center;gap:5px;border-radius:99px;background:#ecf2eb;padding:5px 9px;color:#547362;font-size:11px;white-space:nowrap}
.dot{width:6px;height:6px;border-radius:50%;background:#6b9e7e}.dot.demo{background:var(--gold)}
.subtitle{color:var(--muted);font-size:13px;line-height:1.7}
.alert,.success,.hintbox{border-radius:12px;padding:12px 14px;margin:13px 0;font-size:12px;line-height:1.6}
.alert{background:#f9eee9;color:#904b3f;border:1px solid #eed5c9}
.success{background:#eaf4eb;color:#2c714e;border:1px solid #d4e7d6}
.hintbox{background:#f9f3e7;color:#735f40;border:1px solid #eadbc0}
.legal,.demo-note{font-size:11px;color:#8b978e;line-height:1.6}
.demo-note{margin:22px 0 0}

/* 入学页 */
.welcome{overflow:hidden}
.welcome-left{height:422px;position:relative;padding:25px 25px 35px;background:linear-gradient(180deg,rgba(249,247,238,.66),rgba(255,248,235,.02) 58%),url('/assets/business-dialogue.webp') center 8%/cover no-repeat}
.welcome-brand{position:relative;z-index:1;font-family:"Noto Serif SC","Songti SC","STSong","SimSun",serif;font-weight:700;font-size:21px;letter-spacing:.08em;color:#173a36}
.welcome-brand span{display:block;font:700 8px/1.4 Georgia,serif;letter-spacing:.18em;color:#557067;margin-top:2px}
.welcome-copy{position:relative;z-index:1;margin-top:28px}
.welcome-copy .eyebrow{color:#456c63}
.welcome-copy h1{font-size:33px;line-height:1.25;margin:10px 0;color:#183a37;text-shadow:0 1px 12px rgba(255,252,239,.5)}
.welcome-copy p{font-size:12px;color:#385a51;max-width:245px;line-height:1.6}
.welcome-art-caption{position:absolute;right:16px;bottom:50px;z-index:1;color:#fff;background:rgba(32,60,51,.68);backdrop-filter:blur(8px);border-radius:20px;padding:5px 10px;font-size:10px;letter-spacing:.05em}
.welcome-right{position:relative;margin-top:-27px;background:var(--paper);border-radius:28px 28px 0 0;padding:26px 23px 35px;min-height:390px}
.form-card h2{font-size:25px;line-height:1.3;margin:8px 0 5px;color:var(--ink)}
.form-card p{font-size:12px;color:var(--muted);margin:0 0 17px}
.field{display:block;margin:13px 0}
.field span{display:block;font-size:12px;font-weight:700;margin-bottom:6px}
.field input,.field select{width:100%;min-height:48px;border:1px solid #dce3d9;background:#fff;border-radius:11px;padding:11px 13px;color:var(--ink);font-size:16px;outline:none}
.form-card .primary{width:100%;margin-top:8px}
.welcome-counts{display:flex;justify-content:space-between;gap:5px;padding:17px 0 12px;margin-top:5px;color:#7e8b80;font-size:10px;border-bottom:1px solid var(--line)}
.legal{margin-top:12px}

/* 今日首页 */
.today-cover{height:310px;position:relative;margin:0 -20px;background:linear-gradient(180deg,rgba(253,251,241,.72),rgba(255,255,255,0) 59%),url('/assets/business-dialogue.webp') center top/cover no-repeat}
.today-cover-top{padding:15px 22px;display:flex;justify-content:space-between;gap:8px;font-size:10px;letter-spacing:.04em;color:#30564d}
.today-cover-top span:last-child{font-family:Georgia,serif;font-weight:700}
.today-cover-copy{padding:18px 23px}
.today-cover-copy .eyebrow{color:#3c665b}
.today-cover h1{color:#1d403b;font-size:34px;line-height:1.22;margin:9px 0;text-shadow:0 1px 13px rgba(251,246,234,.7)}
.today-card{position:relative;z-index:2;margin:-34px 0 25px;padding:21px 20px 19px;background:rgba(255,255,252,.98);border:1px solid #eeeee6;border-radius:18px;box-shadow:var(--shadow)}
.today-card-kicker{display:flex;justify-content:space-between;font-size:10px;color:#6d897a;font-weight:800;letter-spacing:.09em}
.today-card-kicker span:last-child{font-weight:500;letter-spacing:0;color:#8a988a}
.today-card h2{font-size:25px;margin:8px 0 7px;line-height:1.3}
.today-card p{font-size:13px;color:#65756b;line-height:1.65;margin:0}
.today-flow{display:flex;gap:0;justify-content:space-between;align-items:center;margin:16px 0 18px;padding:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:#526a5e;font-size:10px}
.today-flow span:not(:last-child):after{content:"·";padding-left:5px;color:#a6b5aa}
.today-card .primary{width:100%}
.journey-progress{padding:5px 1px 8px}
.progress-head{display:flex;justify-content:space-between;align-items:end}
.progress-head h2{font-size:23px;margin:4px 0 12px}
.progress-head strong{font-family:Georgia,serif;font-size:29px;color:var(--green);line-height:1.2;margin-bottom:11px}
.progress-head strong small{font-size:13px;color:#a0aea2;font-weight:400}
.progress-track{height:6px;background:#e1e9df;border-radius:99px;overflow:hidden}
.progress-track span{display:block;height:100%;background:#70987c;border-radius:99px}
.journey-progress p{font-size:11px;color:#8b978d;margin:8px 0 0}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:10px;margin:23px 0 11px}
.section-head h2{font-size:21px;margin:3px 0 0}
.section-head p{font-size:12px;color:var(--muted);margin:4px 0}
.journey-list{border-top:1px solid var(--line)}
.journey-list>summary{list-style:none;display:flex;align-items:center;justify-content:space-between;padding:13px 0;color:var(--green);font-size:13px;font-weight:700;cursor:pointer}
.journey-list>summary::-webkit-details-marker{display:none}
.journey-list[open]>summary span{transform:rotate(180deg)}
.chapter{margin:11px 0 20px}
.chapter h3{font-size:12px;color:#60786a;letter-spacing:.03em;font-weight:700;margin:0 0 10px}
.chapter h3 span{display:inline-block;width:14px;height:2px;margin:0 7px 4px 0;background:var(--gold)}
.level-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.level{min-height:90px;display:flex;flex-direction:column;justify-content:space-between;gap:5px;text-align:left;background:#fff;border:1px solid var(--line);border-radius:12px;padding:11px 12px}
.level.current{border-color:#75a188;background:#f0f6ef}
.level.done{background:#f9fcf8}
.level.locked{background:#f8f8f4;color:#87938a}
.level .number{font:700 10px Georgia,serif;letter-spacing:.08em;color:#6d8c76}
.level .name{font-size:13px;font-weight:700;line-height:1.3}
.level .tag{font-size:10px;color:#7c9a85}
.level.locked .tag{color:#abb5aa}

/* 微课与演练 */
.lesson-banner{height:160px;border-radius:15px;padding:18px;display:flex;flex-direction:column;align-items:flex-start;justify-content:flex-end;background:linear-gradient(180deg,rgba(253,252,243,.2),rgba(25,58,51,.65)),url('/assets/business-dialogue.webp') center 24%/cover no-repeat;color:#fff;margin-bottom:19px}
.lesson-banner span{font-size:10px;letter-spacing:.13em;margin-bottom:auto;color:#2e594e;font-weight:700}
.lesson-banner strong{font-family:"Noto Serif SC","Songti SC","STSong","SimSun",serif;font-size:27px;font-weight:500;line-height:1.2}
.lesson-banner small{font-size:11px;color:#e9ede3}
.micro-head{display:flex;justify-content:space-between;align-items:start;gap:10px;margin:12px 0 15px}
.micro-head h1{font-size:26px;line-height:1.3;margin:6px 0}
.micro-head .subtitle{margin:0}
.micro-head .statuspill{margin-top:5px}
.flow-steps{display:flex;gap:4px;margin:17px 0 18px;border-bottom:1px solid var(--line)}
.flow-steps span{flex:1;text-align:center;font-size:11px;color:#9eaaa0;padding:0 0 11px}
.flow-steps span.active{color:var(--green);font-weight:800;border-bottom:2px solid var(--green)}
.split{display:flex;flex-direction:column;gap:13px}
.panel{background:#fff;border:1px solid var(--line);border-radius:15px;padding:19px;margin-bottom:12px}
.panel h3{font-family:"Noto Serif SC","Songti SC","STSong","SimSun",serif;font-size:19px;font-weight:500;margin:7px 0 12px}
.big-point{font-family:"Noto Serif SC","Songti SC","STSong","SimSun",serif;font-size:21px;line-height:1.55;background:#edf3ea;color:var(--green-dark);border-left:3px solid #92ae91;border-radius:0 11px 11px 0;padding:15px 16px;margin:13px 0}
.steps{display:grid;gap:0}
.step{display:flex;align-items:flex-start;gap:12px;padding:11px 0;border-bottom:1px solid #edf0ea;font-size:13px}
.step:last-child{border-bottom:0}
.step b{display:grid;place-items:center;flex:none;width:22px;height:22px;border:1px solid #afc3b3;border-radius:50%;color:#5a8169;font:12px/1 Georgia,serif}
.source-line,.inline-note{font-size:11px;color:#8e9b90;line-height:1.5}
.source-line{border-top:1px solid var(--line);padding-top:12px;margin:12px 0 0}
.compare{display:grid;gap:8px}
.example{background:#faf5f2;border-radius:11px;padding:12px 14px;border:1px solid #f1e6e0}
.example.good{background:#f1f7ef;border-color:#e0eddf}
.example small{display:block;color:#a36a5b;font-size:11px;font-weight:700;margin-bottom:6px}
.example.good small{color:#4e8764}
.example p{font-size:13px;margin:0}
.quiz{border-top:1px solid var(--line);margin-top:20px;padding-top:12px}
.quiz-options{display:grid;gap:8px}
.quiz-options button{min-height:48px;border:1px solid #dce7dc;background:#fff;text-align:left;border-radius:10px;padding:10px 12px;color:var(--ink);font-size:13px}
.quiz-options button:hover{background:#eff6ef;border-color:#8eae91}
.quiz .primary{width:100%}
.aside-card{padding:15px 17px;border-radius:14px;background:#f4f4ec;color:var(--muted);font-size:12px}
.aside-card h3{font-family:"Noto Serif SC","Songti SC","STSong","SimSun",serif;color:var(--ink);font-size:16px;margin:4px 0 6px}
.aside-card p{margin:0 0 12px}
.aside-card ul{margin:4px 0 11px;padding-left:20px}
.aside-card li{margin:3px 0}
.chat{display:flex;flex-direction:column;min-height:59dvh;max-height:69dvh;border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}
.chat-top{padding:12px 14px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);gap:8px}
.chat-top strong{display:block;font-size:13px}
.chat-top small{font-size:10px;color:#8a998f}
.chat-top .statuspill{font-size:9px}
.messages{display:flex;flex-direction:column;gap:11px;flex:1;overflow-y:auto;padding:16px}
.message{max-width:86%;display:flex;flex-direction:column;gap:3px}
.message.assistant{align-self:flex-start}.message.user{align-self:flex-end;align-items:flex-end}
.message small{font-size:10px;color:#9aa79c}
.bubble{padding:11px 13px;border-radius:14px;background:#eef2ec;font-size:13px;line-height:1.6;white-space:pre-wrap}
.message.assistant .bubble{border-bottom-left-radius:3px}
.message.user .bubble{border-bottom-right-radius:3px;background:#315e4e;color:#fff}
.chat-form{display:flex;gap:7px;padding:10px;border-top:1px solid var(--line);background:#fff}
.chat-form input{min-width:0;flex:1;min-height:45px;padding:10px 12px;border:1px solid #dae5d9;border-radius:10px;outline:none;font-size:16px}
.chat-form button{min-width:44px;padding:7px 10px;border:0;border-radius:10px;background:var(--green);color:#fff;font-weight:700}
.chat-form button.voice{background:#eaf2e9;color:var(--green)}
.finish-row{padding:10px}.finish-row .primary{width:100%}
.score{flex:none;width:47px;height:47px;border-radius:12px;background:var(--green);color:#fff;display:flex;align-items:center;justify-content:center;gap:2px;font:24px Georgia,serif}
.feedback-grid{display:grid;gap:8px}.feedback-item{padding:13px;background:#f7f8f4;border-radius:11px}.feedback-item small{font-size:11px;color:#799183}.feedback-item p{font-size:13px;margin:5px 0 0}
.rewrite textarea{width:100%;min-height:115px;border:1px solid #dce6dd;border-radius:11px;padding:12px;font-size:16px;resize:vertical}
.rewrite .primary{width:100%;margin-top:10px}
.stats{display:flex;gap:8px;margin:18px 0}.stat{flex:1;min-width:0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 8px;text-align:center}.stat strong{display:block;font:25px Georgia,serif;color:var(--green)}.stat span{font-size:10px;color:#829286}
.hero{background:var(--green);border-radius:16px;color:#fff;padding:24px 21px;margin:10px 0}.hero h1{font-size:29px;margin:10px 0}.hero p{font-size:13px;color:#d5e4d7}.hero .eyebrow{color:#a9c7af}.hero .actions{display:flex;gap:8px;flex-wrap:wrap}.hero .primary{background:#e5b67a;color:#244438}.hero .secondary{color:#fff}
.page-title{font-size:29px;margin:15px 0 4px}
.ability-grid{display:grid;gap:9px;margin-top:15px}
.ability{background:#fff;border:1px solid var(--line);border-radius:12px;padding:13px 15px}
.ability-top{display:flex;justify-content:space-between;gap:8px}.ability strong{font-size:13px}.ability code{font:10px Georgia,serif;color:#748c79}
.ability p{font-size:11px;color:#8c9a8d;margin:4px 0 8px}.meter{height:4px;background:#e9eee8;border-radius:20px}.meter span{display:block;height:100%;border-radius:20px;background:#8daf93}
.teacher-list{display:grid;gap:9px}.teacher-row{padding:14px;background:#fff;border:1px solid var(--line);border-radius:12px;display:flex;justify-content:space-between;gap:10px;align-items:center}.teacher-row small{display:block;color:#87988a;font-size:11px}
.teacher-row button{font-size:11px}
@media(min-width:700px){.welcome,.shell{min-height:900px}.mobile-nav{bottom:0}}
@media(max-width:360px){.today-flow{font-size:9px}.today-cover h1{font-size:30px}.welcome-copy h1{font-size:30px}.mobile-header{padding:0 15px}.main{padding-left:15px;padding-right:15px}.today-cover{margin-left:-15px;margin-right:-15px}}

/* 主视觉使用真实图片元素，浏览器和隧道都能稳定显示。 */
.welcome-left,.today-cover,.lesson-banner{background:none;overflow:hidden}
.lesson-banner{position:relative}
.cover-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center top;z-index:0}
.welcome-left>.cover-image{object-position:center 8%}
.today-cover>.cover-image{object-position:center top}
.lesson-banner>.cover-image{object-position:center 24%}
.welcome-left:before,.today-cover:before,.lesson-banner:before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none}
.welcome-left:before{background:linear-gradient(180deg,rgba(249,247,238,.67),rgba(255,248,235,.02) 58%)}
.today-cover:before{background:linear-gradient(180deg,rgba(253,251,241,.76),rgba(255,255,255,0) 64%)}
.lesson-banner:before{background:linear-gradient(180deg,rgba(253,252,243,.2),rgba(25,58,51,.68))}
.welcome-art-caption{z-index:2}
.today-cover-top,.today-cover-copy,.lesson-banner>span,.lesson-banner>strong,.lesson-banner>small{position:relative;z-index:2}

/* 文案与真实商务对话分区排版，让人物、眼神和报告都完整可见。 */
.welcome-left{height:460px;background:#f8f6ef}
.welcome-left:before,.today-cover:before{display:none}
.welcome-left>.cover-image{top:187px;height:273px;object-position:center center}
.welcome-copy{margin-top:14px}
.welcome-copy h1{font-size:30px;margin:7px 0}
.welcome-copy p{margin:0;max-width:310px}
.today-cover{height:425px;background:#f8f6ef}
.today-cover>.cover-image{top:145px;height:280px;object-position:center center}
.today-cover-copy{padding-top:9px}
.today-cover h1{font-size:30px;line-height:1.17;margin-top:6px}
.today-card{margin-top:-18px}
.welcome-left>.cover-image,.today-cover>.cover-image{z-index:1}

/* 手机界面：沿用参考版的清晰导航与分步卡片，保留现有课程内容。 */
:root{--outer:#e7ece5;--paper:#f7f9f4;--white:#fff;--ink:#173c32;--muted:#5d7062;--green:#17634c;--green-dark:#124a3b;--sage:#edf4e9;--line:#e0e8db;--shadow:0 12px 30px rgba(24,66,44,.06)}
body{background:var(--outer);color:var(--ink);font:14px/1.65 "Microsoft YaHei","PingFang SC",system-ui,sans-serif}
h1,h2,h3,.brand-word,.big-point,.today-card h2,.page-title{font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;font-weight:700;letter-spacing:-.02em}
.shell,.welcome{width:min(100%,440px);background:var(--paper)}
.shell{padding-bottom:calc(78px + env(safe-area-inset-bottom,0px))}
.mobile-header{height:64px;padding:0 20px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}
.app-brand{display:flex;align-items:center;gap:10px;min-width:0}
.app-brand .brandmark,.welcome-brand .brandmark{display:grid;place-items:center;flex:none;width:34px;height:34px;border-radius:10px;background:var(--green);color:#fff;font-size:20px;font-weight:700;line-height:1}
.app-brand strong,.welcome-brand>div{display:block;font-size:14px;line-height:1.2;color:var(--ink)}
.app-brand small,.welcome-brand small{display:block;margin-top:3px;color:#657d6e;font-size:9px;letter-spacing:.1em;font-weight:500}
.header-user{display:flex;align-items:center;justify-content:center;gap:5px;border:0;background:#edf4ec;padding:7px 9px;border-radius:10px;color:var(--green-dark);font-size:11px;max-width:118px}
.header-user svg{width:16px;height:16px;flex:none}.header-user span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mobile-nav{width:min(100%,440px);height:calc(70px + env(safe-area-inset-bottom,0px));background:rgba(255,255,255,.97);padding:7px 8px env(safe-area-inset-bottom,0px);box-shadow:0 -4px 18px rgba(24,52,35,.05)}
.mobile-nav button{gap:3px;color:#738778;min-height:50px}
.mobile-nav button.active{color:var(--green);font-weight:700}
.mobile-nav button.active:before{display:none}
.mobile-nav svg{width:20px;height:20px}
.mobile-nav small{font-size:11px;letter-spacing:0}
.main{padding:18px 20px 30px}
.eyebrow{font-size:10px;color:#5c8068;letter-spacing:.15em}
.page-head{margin:2px 0 18px}
.page-head h1{font-size:25px;line-height:1.35;margin:8px 0 5px;color:var(--ink)}
.page-head p{font-size:13px;color:var(--muted);line-height:1.6;margin:0}
.primary{background:var(--green);border-radius:11px;min-height:48px;box-shadow:none}
.primary:hover{background:var(--green-dark)}
.primary svg,.text-link svg,.back svg,.chapter-preview svg,.scene-card svg,.stage-next svg{width:17px;height:17px}
.statuspill{font-size:11px;background:#edf4ed;color:var(--green-dark)}
.back{display:flex;align-items:center;gap:7px;font-size:13px;padding:6px 0 16px}
.section-head{align-items:center;margin:27px 0 12px}.section-head h2{font-size:17px;line-height:1.4}.section-head p{font-size:12px;line-height:1.5}
.text-link{display:flex;align-items:center;gap:3px;white-space:nowrap;border:0;background:transparent;color:var(--green);font-size:12px;font-weight:700;padding:7px 0}
.demo-note{font-size:12px;color:#63796a;line-height:1.6}

/* 登录页：让学员在首屏看到资料输入与开始按钮。 */
.welcome{padding-bottom:28px;min-height:100dvh}
.welcome-left{height:330px;padding:18px 20px 0;background:var(--paper)}
.welcome-left>.cover-image{top:160px;height:170px;width:100%;object-position:center 40%}
.welcome-brand{display:flex;align-items:center;gap:9px;position:relative;z-index:2;font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:14px;letter-spacing:0}
.welcome-copy{margin-top:20px;position:relative;z-index:2}
.welcome-copy .eyebrow{font-size:9px;color:var(--green-dark)}
.welcome-copy h1{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:24px;line-height:1.28;margin:4px 0;color:var(--ink)}
.welcome-copy p{display:none}
.welcome-right{margin-top:0;border-radius:0;padding:18px 20px 24px;min-height:0;background:var(--paper)}
.form-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px}
.form-card h2{font-size:21px}.form-card p{font-size:13px}.field span{font-size:13px}
.form-card .primary{margin-top:8px}.welcome-counts{font-size:11px}

/* 首页：商务对话图保留为短横幅，今日行动保持在首屏。 */
.dashboard-head{margin:1px 0 13px}.dashboard-head h1{font-size:24px}
.scene-banner{height:106px;border-radius:14px;overflow:hidden;position:relative;margin-bottom:13px;background:#dbe8db}
.scene-banner img{width:100%;height:100%;object-fit:cover;object-position:center 42%}
.scene-banner:after{content:"";position:absolute;inset:45% 0 0;background:linear-gradient(transparent,rgba(12,45,35,.62))}
.scene-banner span{position:absolute;z-index:1;bottom:10px;left:14px;color:#fff;font-size:12px;font-weight:700;text-shadow:0 1px 5px #153f32}
.today-card{margin:0;padding:22px 22px 19px;border:0;border-radius:17px;background:var(--green-dark);color:#fff;box-shadow:none}
.today-card-kicker{font-size:11px;color:#cae0d0;letter-spacing:0}
.today-card-kicker span:last-child{color:#d9e8dc;font-size:11px}
.today-card h2{font-size:23px;line-height:1.36;margin:16px 0 8px;color:#fff}
.today-card p{font-size:13px;line-height:1.6;color:#e2eee4;min-height:40px}
.today-card .primary{width:auto;min-height:44px;margin-top:18px;background:#fff;color:var(--green-dark);font-size:13px;padding:10px 14px;box-shadow:none}
.today-card .primary:hover{background:#eaf4e8}
.today-flow{border:0;margin:0;padding:16px 0 10px;gap:7px;color:#637e68}
.today-flow span{display:flex;flex:1;align-items:center;flex-direction:column;gap:5px;min-width:0}
.today-flow span:not(:last-child):after{display:none}
.today-flow svg{width:31px;height:31px;padding:7px;border-radius:50%;border:1px solid #d9e5d8;background:var(--paper)}
.today-flow small{font-size:11px;white-space:nowrap}
.journey-progress{margin-top:10px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:14px}
.progress-head h2{font-size:17px;margin:4px 0 8px}.progress-head strong{font-size:25px;margin-bottom:6px}
.journey-progress p{font-size:12px;color:var(--muted)}
.chapter-preview{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.chapter-preview button{display:flex;align-items:flex-start;gap:8px;min-height:99px;padding:15px 13px;border:1px solid #dbe7d8;border-radius:13px;background:#eaf2e8;text-align:left;color:var(--green-dark)}
.chapter-preview button:nth-child(2){background:#ebf2f4;border-color:#dce8eb}.chapter-preview button:nth-child(3){background:#f6f0e5;border-color:#ece3d2}.chapter-preview button:nth-child(4){background:#f2eef6;border-color:#e7e0ed}.chapter-preview button:nth-child(5){grid-column:1/-1;min-height:73px;background:#f5ece9;border-color:#ebded8}
.chapter-preview button>span{font-size:12px;opacity:.65}.chapter-preview strong{flex:1;font-size:14px;line-height:1.5}.chapter-preview svg{align-self:flex-end;opacity:.75}

/* 30天学习路径 */
.pathway-summary{display:flex;align-items:center;gap:12px;padding:15px 17px;background:#fff;border:1px solid var(--line);border-radius:13px}
.pathway-summary>strong{font-size:27px;color:var(--green);line-height:1}.pathway-summary strong small{font-size:14px;color:#8ea393;font-weight:400}
.pathway-summary b{display:block;font-size:13px}.pathway-summary span{display:block;font-size:12px;color:var(--muted)}
.chapter-filters,.scene-filters{display:flex;gap:7px;overflow-x:auto;padding:15px 0 9px;margin:0 -20px 8px;padding-left:20px;padding-right:20px;scrollbar-width:none}
.chapter-filters::-webkit-scrollbar,.scene-filters::-webkit-scrollbar{display:none}
.chapter-filters button,.scene-filters button{flex:none;min-height:37px;white-space:nowrap;border-radius:9px;padding:7px 12px;border:1px solid var(--line);background:#fff;color:#4d6655;font-size:12px}
.chapter-filters button.active,.scene-filters button.active{background:var(--green);border-color:var(--green);color:#fff;font-weight:700}
.chapter{margin:20px 0 24px}.chapter-heading{display:flex;align-items:center;gap:11px;margin:0 0 10px}
.chapter-heading>span{display:grid;place-items:center;width:37px;height:37px;flex:none;border-radius:11px;background:#e5f0e3;color:var(--green);font-size:14px;font-weight:700}
.chapter-heading h2{font-size:16px;margin:0}.chapter-heading p{font-size:11px;color:var(--muted);margin:2px 0 0}
.level-grid{display:grid;grid-template-columns:1fr;gap:8px}
.level{min-height:65px;display:flex;flex-direction:row;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#fff;text-align:left}
.level.current{background:#eef6eb;border-color:#91bc98}.level.locked{background:#f8faf5;color:#718276}
.level-num{display:grid;place-items:center;flex:none;width:34px;height:34px;border-radius:9px;background:#e8f1e7;color:var(--green);font-weight:700;font-size:12px}
.level-copy{flex:1;min-width:0}.level .name{display:block;font-size:13px;font-weight:700;line-height:1.45}.level-copy small{display:block;font-size:11px;color:#697d6c;line-height:1.4;margin-top:3px}
.level-state{flex:none;max-width:64px;text-align:right;font-size:10px;color:#5c7f64}.level.locked .level-state{color:#89988c}
.level:disabled{opacity:1}

/* 可浏览的场景库，不绕过每日解锁。 */
.scene-search{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:0 12px;min-height:46px;color:#638369}
.scene-search svg{width:17px;height:17px}.scene-search input{width:100%;border:0;background:transparent;outline:0;color:var(--ink);font-size:14px}
.scene-filters{margin-top:5px}.scene-count{font-size:12px;color:var(--muted);margin:6px 0 13px}
.scene-card{display:block;width:100%;text-align:left;background:#fff;border:1px solid var(--line);border-radius:13px;padding:16px;margin-bottom:11px;color:var(--ink)}
.scene-card>div{display:flex;align-items:center;gap:8px}.scene-code{font-size:11px;font-weight:700;color:var(--green)}.scene-group{font-size:10px;color:#5d8161;background:#edf4e9;border-radius:5px;padding:3px 7px}
.scene-card h3{font-size:15px;line-height:1.45;margin:11px 0 5px}.scene-card p{font-size:12px;color:var(--muted);line-height:1.55;margin:0}
.scene-card footer{display:flex;justify-content:space-between;gap:8px;border-top:1px solid var(--line);padding-top:10px;margin-top:12px;font-size:11px;color:#5d7562}.scene-card footer svg{flex:none;color:var(--green)}
.empty-state,.locked-note{padding:18px;border-radius:11px;background:#edf3e9;color:#536d58;font-size:13px;line-height:1.6}
.scene-detail-head h1{font-size:24px}.scene-related .primary{width:100%;margin-top:10px}

/* 微课：分步展示同一关的全部内容。 */
.lesson-head{margin:1px 0 15px}.lesson-kicker{display:flex;justify-content:space-between;color:#5e8066;font-size:11px;font-weight:700}
.lesson-head h1{font-size:24px;line-height:1.35;margin:8px 0 5px}.lesson-head p{font-size:12px;color:var(--muted);margin:0}
.flow-steps{display:flex;gap:4px;border:0;background:#eaf1e5;border-radius:11px;padding:5px;margin:0 0 18px}
.flow-steps button{flex:1;min-width:0;border:0;background:transparent;border-radius:8px;min-height:48px;color:#67816a;font-size:11px;line-height:1.4;padding:5px 2px}
.flow-steps button span{display:block;font-size:12px;font-weight:700}
.flow-steps button.active{background:#fff;color:var(--green-dark);font-weight:700;box-shadow:0 2px 6px #193c2b13}
.flow-steps button:disabled{color:#99aa9b}
.panel{border-radius:13px;padding:18px;margin-bottom:12px}
.panel h2{font-size:18px;line-height:1.4;margin:0 0 11px}.panel h3{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:15px;font-weight:700;margin:17px 0 10px}
.lesson-panel .eyebrow{font-size:10px}.method-title{font-size:23px!important;margin:10px 0 8px!important}
.lesson-goal{font-size:13px;color:var(--muted);line-height:1.7}
.step{padding:11px 0;font-size:13px;line-height:1.6}.step b{background:#e7f1e5;border:0;color:var(--green)}
.lesson-situation{background:#edf5ea;border-color:#d7e8d6}
.lesson-situation h2{font-size:16px;line-height:1.55;margin:8px 0}
.lesson-situation p{font-size:12px;line-height:1.65;color:#496954;margin:0}
.core-idea{font-size:13px;line-height:1.85;color:#365345;margin:5px 0 0}
.evidence-note{background:#f1f6ef;border-radius:10px;padding:12px 13px;margin-top:9px;font-size:12px;color:#45634e}
.evidence-note strong{color:var(--green-dark)}.evidence-note p{margin:4px 0 0;line-height:1.6}
.method-slide{padding:16px 17px 16px;border:1px solid #d8e5d7;border-radius:18px;background:#fff}
.method-slide-top{display:flex;justify-content:space-between;align-items:center;color:#6b9277;font-size:10px;letter-spacing:.08em}
.method-slide-top .eyebrow{color:#5f876b}
.method-slide h2{font-size:19px;line-height:1.35;margin:7px 0 10px;color:#173e32}
.method-keywords{display:flex;flex-wrap:wrap;gap:6px;padding:11px;background:#194f3f;border-radius:13px}
.method-keywords span{display:inline-flex;align-items:center;gap:6px;min-height:31px;background:#fff;color:#1b5943;border-radius:6px;padding:4px 9px;font-size:13px;font-weight:800;line-height:1.35}
.method-keywords small{font-size:9px;font-weight:800;color:#7a9a82}
.method-divider{display:flex;align-items:center;gap:9px;color:#6b8e72;font-size:10px;font-weight:800;letter-spacing:.06em;margin:11px 0 5px}
.method-divider:after{content:"";height:1px;flex:1;background:#dbe8dc}
.method-scene{margin:0;background:#f0f5ec;border-radius:8px;padding:8px 10px;color:#3c5f4c;font-size:12px;line-height:1.55}
.method-step-cards{display:grid;gap:5px}
.method-step-card{display:flex;align-items:center;gap:13px;padding:7px 11px;border:1px solid #e2eae0;border-radius:10px;background:#fbfcf9;min-height:43px}
.method-step-card b{font-size:18px;line-height:1;color:#71a480;font-weight:800;letter-spacing:-.04em}
.method-step-card strong{font-size:14px;line-height:1.4;color:#194f3f}
.method-more{padding:0 17px!important;border:1px solid #dbe8da;background:#f9fbf7}
.method-more summary{cursor:pointer;color:#27634b;font-size:14px;font-weight:700;padding:14px 0;line-height:1.5}
.method-more summary::marker{color:#27634b}
.method-more-body{border-top:1px solid #dce9da;padding:4px 0 16px;color:#2e5141;font-size:14px;line-height:1.8}
.method-more-body h3{font-size:14px!important;margin:13px 0 3px!important;color:#1d553f}
.method-more-body p{margin:0}.method-more-body ol{margin:3px 0 0;padding-left:20px}.method-more-body li{margin:5px 0}
.source-panel h3{margin:0 0 10px}.source-panel p{font-size:12px;line-height:1.65;color:#516b59;margin:10px 0}.source-panel strong{color:var(--green-dark)}
.source-panel details{border-top:1px solid var(--line);padding-top:10px;margin-top:12px;font-size:12px;color:#536e5a}.source-panel summary{cursor:pointer;font-weight:700}
.compare{gap:11px;margin-top:16px}.example{padding:15px;border:0;background:#f7f1e8}.example.good{background:#eaf4e8}.example small{font-size:11px}.example p{font-size:13px;line-height:1.65}
.example-note{font-size:11px;color:var(--muted);margin:12px 0 0}
.demo-panel{padding:19px 19px 16px;border:1px solid #dbe8d9;border-radius:17px}
.demo-panel h2{font-size:21px;line-height:1.4;margin:10px 0 16px;color:var(--green-dark)}
.demo-theater{border:1px solid #d5e6d6;border-radius:18px;overflow:hidden;background:#fff}
.demo-theater-head{display:flex;justify-content:space-between;align-items:center;padding:12px 15px;background:#1c4b3f;color:#fff;font-size:11px}
.demo-theater-head strong{font-weight:700}.demo-theater-head span{font-weight:700;letter-spacing:.03em}
.demo-stage{background:#f8eee8;padding:20px 17px;min-height:300px;display:flex;flex-direction:column}
.demo-prompt{align-self:flex-start;background:#fff;border-radius:7px;padding:6px 9px;color:#496e5b;font-size:11px}
.demo-actors{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:0 24px;margin:25px 0 17px}
.demo-person{display:flex;flex-direction:column;align-items:center;gap:5px;min-width:70px;color:#2f5848;font-size:10px;white-space:nowrap}
.demo-person img{width:72px;height:78px;object-fit:contain}
.demo-dots{display:grid;place-items:center;flex:none;width:45px;height:45px;background:#fffaf7;border-radius:50%;color:#4d897c;letter-spacing:.1em;font-weight:800;padding-left:3px}
.demo-dialogue{background:#fff;border-radius:14px;padding:17px 15px;margin-top:auto;min-height:90px}
.demo-dialogue small{display:block;color:#456c59;font-size:11px;margin-bottom:10px;font-weight:700}
.demo-dialogue p{margin:0;color:#193e34;font-size:14px;line-height:1.65;font-weight:600;overflow-wrap:anywhere}
.demo-controls{padding:15px 14px 11px}
.demo-progress{display:flex;gap:6px;margin-bottom:13px}
.demo-progress span{height:4px;flex:1;background:#dce6d9}
.demo-progress span.active,.demo-progress span.seen{background:#2c7055}
.demo-buttons{display:flex;justify-content:space-between;align-items:center;gap:7px}
.demo-buttons button{border:0;cursor:pointer;font-size:12px}
.demo-side{background:transparent;color:#245d4a;padding:10px 3px;white-space:nowrap}
.demo-side:disabled{color:#a4b5a9;cursor:default}
.demo-play{background:#1e7054;color:#fff;padding:11px 16px;border-radius:7px;min-width:90px;font-weight:700}
.demo-play:hover{background:#185c46}
.demo-controls p{margin:12px 0 0;color:#557763;font-size:10px;line-height:1.55}
.demo-panel+.stage-next{margin-top:2px}
.quiz-options button{font-size:13px;line-height:1.5;min-height:51px}
.stage-next{width:100%;margin:1px 0 8px}.stage-next svg{flex:none}
.lesson-scene h3{font-size:15px;line-height:1.55;margin:8px 0}.lesson-scene p{font-size:12px;line-height:1.6;color:var(--muted);margin:8px 0}
.lesson-scene strong{color:var(--ink)}

/* 对练：输入框始终落在底部导航之上。 */
.practice-view .back{padding-bottom:8px}.practice-heading{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:10px}
.practice-heading h1{font-size:19px;line-height:1.35;margin:4px 0 0}.practice-heading .statuspill{flex:none}
.practice-view .split{gap:9px}.practice-view .chat{height:calc(100dvh - 288px);min-height:295px;max-height:560px;border-radius:13px}
.chat-top{padding:9px 12px}.chat-top strong{font-size:12px}.chat-top .statuspill{font-size:10px}
.messages{padding:13px}.bubble{font-size:13px}.chat-form{padding:8px;gap:6px}.chat-form input{min-height:44px}
.chat-form button.voice{display:grid;place-items:center}.chat-form button.voice svg{width:19px;height:19px}
.speak{border:0;background:transparent;color:var(--green)}
.practice-view .aside-card{padding:10px 13px;font-size:12px}.practice-view .aside-card h3{font-size:13px;margin:0}.practice-view .aside-card p{margin:2px 0}.practice-view details{margin-top:6px}.practice-view summary{color:var(--green);font-weight:700}
.practice-view .inline-note{font-size:11px;color:#5b725f}

/* 能力档案 */
.growth-stats{gap:0;background:#fff;border:1px solid var(--line);border-radius:13px;padding:15px 0;margin:18px 0}
.growth-stats .stat{border:0;border-right:1px solid var(--line);border-radius:0;margin:0;padding:0 4px}
.growth-stats .stat:last-child{border:0}.growth-stats .stat strong{font-size:24px}.growth-stats .stat span{font-size:11px}
.ability-grid{gap:0;background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}
.ability{border:0;border-bottom:1px solid var(--line);border-radius:0;padding:13px 14px}.ability:last-child{border:0}
.ability-top{align-items:center}.ability code{flex:none;color:#63856b;font-size:11px}.ability strong{flex:1;font-size:12px;line-height:1.5}.ability-top span{font-size:10px;color:#58765e;background:#eef4eb;border-radius:5px;padding:3px 6px;white-space:nowrap}
.ability p{margin:3px 0 0;font-size:10px}.ability .meter{margin-top:8px}

@media(max-width:360px){.main{padding-left:15px;padding-right:15px}.scene-filters,.chapter-filters{margin-left:-15px;margin-right:-15px;padding-left:15px;padding-right:15px}.today-card h2{font-size:21px}.today-flow small{font-size:10px}.mobile-header{padding:0 15px}.chapter-preview strong{font-size:13px}}
@media(max-height:700px){.practice-view .chat{height:calc(100dvh - 278px);min-height:245px}.practice-view .aside-card{display:none}}
html{scroll-behavior:auto}
.method-more .method-more-body p{line-height:1.8;margin:12px 0}
.answer-compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:14px 0}
.answer-compare>div{background:#f5f8f4;border:1px solid #dbe6d9;border-radius:14px;padding:14px;min-width:0}
.answer-compare small{color:#598076;font-weight:700}
.answer-compare p{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.65}
.scene-quote{padding:14px;border-left:4px solid #2f725d;background:#f3f7f1;border-radius:8px}
.scene-detail-head+.panel textarea,.lesson-panel textarea,.panel form textarea,#demo-imitation{width:100%;box-sizing:border-box;min-height:110px;border:1px solid #cbdaca;border-radius:12px;padding:14px;font:inherit;line-height:1.6;margin:10px 0}
.reference-panel{padding:16px;background:#fffdf6;border-top:1px solid #e2e9db}
.answer-compare{grid-template-columns:minmax(0,1fr)}
.answer-compare>div{padding:15px}
.answer-compare p{font-size:14px;line-height:1.75;margin:8px 0 0}
.practice-view .chat{height:auto!important;min-height:0!important;max-height:none!important;overflow:visible}
.practice-view .messages{flex:none;overflow:visible;min-height:0;max-height:none;padding:14px}
.practice-view .reference-panel{overflow:visible;border-radius:0 0 13px 13px}
.practice-view .reference-panel h3{line-height:1.5}
.practice-view .reference-panel>p{font-size:13px;line-height:1.75;overflow-wrap:anywhere}
.practice-view .aside-card{display:block!important}
.ability-grid button.ability{display:block;width:100%;text-align:left;font:inherit;cursor:pointer;background:#fff;color:var(--ink)}
.ability-grid button.ability:hover{background:#F8F6FE}
.ability-grid button.ability:focus-visible{position:relative;z-index:1;outline:2px solid #7964DC;outline-offset:-2px}
.ability-top svg{width:15px;height:15px;flex:none;color:#7564BC}
.main{padding-bottom:calc(105px + env(safe-area-inset-bottom,0px))}
@media(max-width:360px){.answer-compare>div{padding:12px}.practice-view .reference-panel{padding:13px}}

/* 对练作答可一次查看约五行，语音和发送按钮放在下方。 */
.chat-form{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:end}
.chat-form textarea{grid-column:1/-1;width:100%;min-width:0;height:164px;min-height:130px;max-height:45dvh;padding:11px 13px;border:1px solid #d9d0e0;border-radius:10px;outline:none;resize:vertical;background:#fff;color:var(--ink);font-size:16px;line-height:1.6}
.chat-form textarea:focus{border-color:#8a74d4}
.chat-form button.voice{grid-column:2}
.chat-form button[type="submit"]{grid-column:3}

/* 中文手机排版：使用系统中文无衬线字体，避免微信内置浏览器自动放大文字。 */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body,button,input,select,textarea{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif}
body{font-size:15px;line-height:1.65}
h1,h2,h3,.brand-word,.big-point,.today-card h2,.page-title,.panel h3,.welcome-copy h1{font-family:inherit;font-weight:600;letter-spacing:0}
.panel h3,.aside-card h3,.lesson-banner strong,.welcome-brand{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-weight:600;letter-spacing:0}
.eyebrow{font-size:11px;font-weight:600;letter-spacing:.01em;text-transform:none;line-height:1.45}
.dashboard-head h1{font-size:22px;line-height:1.38;letter-spacing:0;margin:7px 0 6px}
.dashboard-head p{font-size:13px;line-height:1.6}
.today-card-kicker{font-size:11px;font-weight:600;letter-spacing:0;line-height:1.5}
.today-card h2{font-size:21px;line-height:1.4;font-weight:600;letter-spacing:0;margin:13px 0 8px}
.today-card p{font-size:13px;line-height:1.65}
.today-card .primary{font-size:13px;font-weight:600}
.app-brand strong{font-size:15px;font-weight:600;letter-spacing:0}
.app-brand small{font-size:10px;letter-spacing:0;font-weight:400}
.mobile-nav small{font-size:12px;font-weight:500}
.mobile-nav button.active small{font-weight:600}
.section-head h2,.progress-head h2,.chapter-heading h2{font-weight:600;letter-spacing:0}
.page-head h1,.lesson-head h1{font-weight:600;letter-spacing:0}
@media(max-width:360px){.dashboard-head h1{font-size:21px}.today-card h2{font-size:20px}}
.account-form{display:grid;gap:12px;margin-top:22px;padding-top:18px;border-top:1px solid #e9e5f3}
.account-form h3{margin:0;font-size:17px}.account-form input{width:100%;min-height:46px;padding:12px;border:1px solid #d8d2e9;border-radius:12px}