/* AI全能课程页 · 沿用合作与报价页的配色和排版，课程重点用金色点缀（对应课程海报） */
:root{color-scheme:dark;--bg:#080b0d;--panel:#101416;--panel2:#15191b;--active:#232729;--line:#323638;--text:#f4f4f4;--soft:#d6dadb;--muted:#9b9fa2;--quiet:#71777a;--accent:#5279ff;--accent-soft:#8ea6ff;--gold:#e9bf6a;--gold-soft:#f3d9a2;--gold-line:#6b5428;--gutter:clamp(20px,4.4vw,64px)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Noto Sans CJK SC","Source Han Sans SC","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;font-weight:400;-webkit-font-smoothing:antialiased;line-height:1.75}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid #7895ff;outline-offset:5px}
h1,h2,h3,h4,h5,p,figure,dl,dd,ol,ul{margin:0}
ol,ul{padding:0;list-style:none}
img{max-width:100%;display:block}
::selection{background:#d4d9dc;color:#0c1012}
.skip-link{position:absolute;z-index:200;left:20px;top:-80px;padding:10px 18px;border-radius:999px;background:var(--text);color:var(--bg)}
.skip-link:focus{top:100px}
.container{max-width:1280px;padding:0 var(--gutter);margin:auto}
.eyebrow{font-size:11px;color:var(--muted);letter-spacing:.18em;font-weight:500}
.ri{width:1.15em;height:1.15em;flex:0 0 auto}

/* 首屏 */
.hero{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center;padding:64px 0 40px}
.hero-by{font-size:13px;color:var(--accent-soft);letter-spacing:.12em;margin-top:22px}
.hero h1{font-size:clamp(40px,5.4vw,76px);font-weight:600;letter-spacing:-.04em;line-height:1.14;margin:14px 0 20px}
.hero h1 span{display:block;text-wrap:balance}
.gold-text{color:var(--gold)}
.hero-sub{font-size:18px;color:var(--soft);line-height:1.7}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.htag{font-size:13px;padding:6px 14px;border-radius:999px;border:1px solid var(--line);color:var(--soft)}
.htag.on{background:#1b2a66;border-color:#3d55b8;color:#e3e9ff}
.htag.gold{border-color:var(--gold-line);color:var(--gold-soft);background:#1d1709}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:10px 22px;border:1px solid #3f4548;border-radius:999px;font-size:14px;background:transparent;transition:background .2s,border-color .2s}
.btn:hover{background:var(--active)}
.btn.primary{background:var(--text);color:var(--bg);border-color:var(--text)}
.btn.primary:hover{background:#dfe3e6}
.hero-fig{position:relative;border-radius:22px;overflow:hidden;border:1px solid var(--line);aspect-ratio:4/5;background:#0c0f11}
.hero-fig img{width:100%;height:100%;object-fit:cover;object-position:50% 78%}
.hero-fig::after{content:"";position:absolute;inset:auto 0 0 0;height:30%;background:linear-gradient(transparent,rgba(8,11,13,.65));pointer-events:none}

.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:18px;background:var(--panel);margin:8px 0 40px}
.stats div{display:flex;flex-direction:column-reverse;align-items:center;gap:2px;padding:24px 12px;text-align:center}
.stats div+div{border-left:1px solid var(--line)}
.stats dd{font-size:clamp(28px,3vw,40px);font-weight:600;letter-spacing:-.03em;color:var(--gold);line-height:1.2}
.stats dt{font-size:13px;color:var(--muted)}
.stats-3{grid-template-columns:repeat(3,minmax(0,1fr));margin:0 0 18px}
.stats-4{margin:0 0 18px}

.jump-wrap{display:flex;justify-content:center;margin:0 0 64px}
.jump-nav{display:flex;padding:6px;gap:4px;border:1px solid #3e4447;border-radius:999px;max-width:100%;overflow-x:auto;scrollbar-width:none}
.jump-nav::-webkit-scrollbar{display:none}
.jump-nav a{padding:10px 18px;font-size:13px;white-space:nowrap;border-radius:999px;color:#adb5b9}
.jump-nav a:hover{background:#1c2225;color:var(--text)}

/* 分节 */
.feature{padding:72px 0 80px;border-top:1px solid var(--line);scroll-margin-top:100px}
.feature-label{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted);letter-spacing:.08em;margin-bottom:30px}
.feature-label .index{color:var(--accent-soft);margin-right:14px}
.feature-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px 7%;align-items:end;margin-bottom:40px}
.feature-head h2{font-size:clamp(30px,3.2vw,46px);font-weight:500;letter-spacing:-.04em;line-height:1.28;text-wrap:balance}
.feature-head p{font-size:15.5px;line-height:1.9;color:#b6bdc0}
.sub{font-size:19px;font-weight:500;letter-spacing:-.01em;margin:52px 0 18px}
.sub small{display:block;font-size:13px;font-weight:400;color:var(--muted);margin-top:6px;letter-spacing:0}
.note{font-size:13.5px;color:var(--muted);line-height:1.85;margin-top:16px}
.text-link{display:inline-flex;align-items:center;gap:4px;color:var(--accent-soft);border-bottom:1px solid #34437a;margin-left:8px}
.text-link:hover{color:#c3d0ff}
.more-links{margin-top:14px;font-size:14px}
.more-links .text-link{margin-left:0}

.gold-tag{display:inline-flex;align-items:center;gap:5px;align-self:flex-start;font-size:12px;color:#1a1306;background:var(--gold);border-radius:999px;padding:3px 11px 3px 9px;font-weight:500;letter-spacing:.02em}
.gold-tag .ri{width:13px;height:13px}

/* 卡片 */
.cards{display:grid;gap:14px}
.cards.c3{grid-template-columns:repeat(3,minmax(0,1fr))}
.cards.c4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{position:relative;border:1px solid var(--line);border-radius:18px;background:var(--panel);padding:26px 24px 24px;display:flex;flex-direction:column;gap:12px}
.card h3{font-size:18px;font-weight:500;letter-spacing:-.01em;line-height:1.45}
.card p{font-size:14px;line-height:1.8;color:#b6bdc0}
.card .tag{align-self:flex-start;font-size:11.5px;letter-spacing:.04em;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px}
.media-card,.stage-card{padding:0;overflow:hidden;gap:0}
.media-card img,.stage-card img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.media-card>div{padding:20px 22px 24px;display:grid;gap:8px}
.stage-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px}
.stage-no{font-size:12px;color:var(--accent-soft);letter-spacing:.12em}

/* 适合人群 */
.aud-main{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:36px;align-items:center;border:1px solid var(--gold-line);border-radius:20px;background:linear-gradient(135deg,#1a1508 0%,var(--panel) 55%);padding:16px 36px 16px 16px;margin-bottom:14px}
.aud-main img{width:100%;height:auto;border-radius:12px}
.aud-main>div{display:flex;flex-direction:column;gap:12px}
.aud-main h3{font-size:clamp(24px,2.4vw,32px);font-weight:500;letter-spacing:-.02em}
.aud-main p{font-size:15px;line-height:1.95;color:#c3c9cc}

.problems{display:grid;gap:10px}
.problems li{display:grid;grid-template-columns:64px minmax(0,1fr) minmax(0,240px);gap:20px;align-items:center;border:1px solid var(--line);border-radius:16px;background:var(--panel);padding:20px 24px}
.p-no{font-size:30px;font-weight:600;color:var(--accent);letter-spacing:-.02em}
.problems h4{font-size:17px;font-weight:500;line-height:1.5}
.problems p{font-size:14px;color:var(--muted);margin-top:4px}
.p-fix{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--gold-soft)}
.p-fix .ri{color:var(--gold)}

/* 知识库 */
.libs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.ext{border:1px solid var(--line);border-radius:20px;background:var(--panel);padding:28px clamp(18px,2.4vw,30px);margin-top:14px}
.ext-eyebrow{font-size:12px;letter-spacing:.24em;color:var(--accent-soft)}
.ext-head h3{font-size:clamp(20px,2.2vw,26px);font-weight:500;letter-spacing:-.02em;margin-top:6px}
.ext-head h3 em{font-style:normal;color:var(--gold)}
.ext-head p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:6px;max-width:900px}
.ext-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}
.ext-card{border:1px solid var(--line);border-radius:14px;background:var(--panel2);padding:16px;display:grid;gap:12px;align-content:start}
.ext-top{display:flex;gap:12px;align-items:flex-start}
.ext-ic{flex:none;width:36px;height:36px;border-radius:10px;background:#16203d;color:var(--accent-soft);display:grid;place-items:center}
.ext-ic .ri{width:20px;height:20px}
.ext-top h4{font-size:16px;font-weight:500}
.ext-top p{font-size:13px;color:var(--muted);margin-top:2px;line-height:1.6}
@media (max-width:900px){.ext-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.ext-grid{grid-template-columns:minmax(0,1fr)}}
.lib{border:1px solid var(--line);border-radius:20px;background:var(--panel);padding:28px clamp(18px,2.4vw,30px);display:flex;flex-direction:column;gap:18px}
.lib-head h3{font-size:22px;font-weight:500;letter-spacing:-.02em}
.lib-head p{font-size:14px;color:var(--gold-soft);margin-top:2px}
.lib-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.lib-stats div{display:flex;flex-direction:column-reverse;padding:12px 10px;border-radius:12px;background:var(--panel2)}
.lib-stats dd{font-size:22px;font-weight:600;color:var(--text);letter-spacing:-.02em;line-height:1.3}
.lib-stats dt{font-size:12px;color:var(--muted)}
.lib-figs{display:grid;gap:12px}
.lib-figs img{width:100%;height:auto;border-radius:10px;border:1px solid #23282a}
.lib-figs figcaption{font-size:12.5px;color:var(--muted);margin-top:8px}
.chips{display:flex;flex-wrap:wrap;gap:6px;align-items:flex-start;align-content:flex-start}
.chip{font-size:12.5px;padding:4px 11px;border-radius:999px;border:1px solid var(--line);color:var(--soft);background:var(--panel2);line-height:1.6}
.chip.gold{border-color:var(--gold-line);color:var(--gold-soft);background:#1d1709}
.lib-feats{display:grid;gap:0;border-top:1px solid var(--line)}
.lib-feats li{display:grid;grid-template-columns:100px 1fr;gap:12px;padding:11px 0;border-bottom:1px solid #23282a;font-size:14px;color:#c3c9cc}
.lib-feats b{font-weight:500;color:var(--text)}

.soft{border:1px solid var(--gold-line);border-radius:20px;background:linear-gradient(135deg,#1a1508 0%,var(--panel) 60%);padding:30px clamp(18px,3vw,40px);margin-top:14px}
.soft-head{display:flex;flex-direction:column;gap:10px;max-width:760px}
.soft-head h3{font-size:22px;font-weight:500;letter-spacing:-.02em}
.soft-head p{font-size:14.5px;color:#c3c9cc;line-height:1.9}
.soft-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
.soft-group{border:1px solid var(--line);border-radius:14px;background:rgba(8,11,13,.45);padding:16px 18px;display:grid;gap:10px}
.soft-group h4{font-size:13px;font-weight:500;color:var(--muted);letter-spacing:.06em}
.soft-group .chip{font-size:14px;padding:5px 13px}

.music{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:32px;align-items:center;border:1px solid var(--gold-line);border-radius:20px;background:linear-gradient(90deg,#1a1508 0%,var(--panel) 55%,#0d1220 100%);padding:30px clamp(18px,3vw,40px);margin-top:14px}
.music-body{display:flex;flex-direction:column;gap:10px;min-width:0}
.music-body h3{font-size:22px;font-weight:500;letter-spacing:-.02em}
.music-body p{font-size:14.5px;color:#c3c9cc;line-height:1.9}
.music-body .chips{margin-top:4px}
.music-body .chip{font-size:14px;padding:5px 13px}
.music-wave{display:flex;align-items:center;justify-content:center;gap:5px;height:120px;min-width:0;overflow:hidden}
.music-wave i{flex:0 0 5px;height:var(--h);border-radius:3px;background:linear-gradient(180deg,var(--gold-soft) 0%,var(--gold) 50%,var(--accent) 100%);opacity:.85}

/* 课程大纲 */
.cur-tools{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-start;justify-content:space-between;margin-bottom:22px}
.mod-index{display:flex;flex-wrap:wrap;gap:6px;flex:1 1 600px}
.mod-index a{font-size:12.5px;padding:6px 12px;border:1px solid var(--line);border-radius:999px;color:#adb5b9}
.mod-index a:hover{background:#1c2225;color:var(--text)}
.mods{display:grid;gap:14px}
.mod{border:1px solid var(--line);border-radius:20px;background:var(--panel);padding:28px clamp(18px,2.6vw,34px);scroll-margin-top:100px}
.mod.is-key{border-color:var(--gold-line);background:linear-gradient(160deg,#1a1508 0%,var(--panel) 45%)}
.mod-head{display:grid;grid-template-columns:72px minmax(0,1fr);gap:8px;align-items:start;margin-bottom:20px}
.mod-no{font-size:34px;font-weight:600;color:var(--accent);letter-spacing:-.03em;line-height:1.1}
.mod.is-key .mod-no{color:var(--gold)}
.mod-head h3{font-size:clamp(19px,1.8vw,23px);font-weight:500;letter-spacing:-.02em;line-height:1.45}
.mod-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:8px}
.mod-meta>span:not(.gold-tag){font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:2px 10px}
.mod-note{font-size:14px;color:var(--gold-soft);margin-top:10px}
.pts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;padding-left:80px}
.pt{border-top:1px solid #23282a;padding:14px 0 6px;display:grid;gap:6px;align-content:start}
.pt h4{font-size:15.5px;font-weight:500;line-height:1.55}
.pt>p{font-size:13.5px;color:#a9b0b3;line-height:1.8}
.pt-av{grid-column:1/-1}
.pt-head p{font-size:13px;color:var(--muted)}
.av-cats{display:grid;grid-template-columns:1fr;gap:10px;margin-top:10px}
.av-cat{border:1px solid var(--line);border-radius:12px;background:var(--panel2)}
.av-cat-head{display:flex;align-items:center;gap:10px;padding:12px 16px 4px;font-size:15px;font-weight:500}
.av-cat-head small{color:var(--quiet);font-size:12px;font-weight:400}
.av-body{padding:2px 16px 14px;display:grid;gap:0}
.av-sub{font-size:12px;color:var(--gold-soft);letter-spacing:.08em;padding:14px 0 4px}
.av-row{display:grid;grid-template-columns:150px minmax(0,1fr);gap:14px;padding:9px 0;border-top:1px solid #23282a}
.av-name{font-size:13.5px;color:var(--text)}
.av-tags{display:flex;flex-wrap:wrap;gap:5px}
.tag{font-size:12px;padding:2px 9px;border-radius:6px;background:#1d2224;color:#c3c9cc;line-height:1.7}
.av-desc{font-size:13px;color:#a9b0b3}
.gold-box{margin:18px 0 0 80px;border:1px solid var(--gold-line);border-radius:14px;background:#1a1508;padding:18px 20px;display:grid;gap:8px}
.gold-box .gold-tag{justify-self:start}
.gold-box h4{font-size:17px;font-weight:500;color:var(--gold-soft)}
.gold-box p{font-size:14px;color:#c9c3b4;line-height:1.85}
.gold-list{display:grid;gap:8px;padding-left:1.2em;margin:0;list-style:disc}
.gold-list li{font-size:14px;color:#c9c3b4;line-height:1.85}
.gold-list li::marker{color:var(--gold-soft)}
.gold-list b{color:var(--gold-soft);font-weight:500;margin-right:.5em}

/* 真实项目 */
.gold-banner{display:flex;align-items:center;gap:20px;border:1px solid var(--gold-line);border-radius:18px;background:linear-gradient(90deg,#2a1f08 0%,#16120a 100%);padding:22px 26px}
.gold-banner h3{font-size:clamp(18px,2vw,22px);font-weight:500;color:var(--gold-soft);letter-spacing:-.01em}
.gold-banner p{font-size:14px;color:#c9c3b4;margin-top:2px}
.custom-plan{margin-top:20px}
.proj-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.proj{border:1px solid var(--line);border-radius:16px;background:var(--panel);overflow:hidden;display:flex;flex-direction:column;transition:border-color .2s,background .2s}
.proj:hover{border-color:#4a5357;background:#14191b}
.proj img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}
.proj-body{padding:14px 16px 16px;display:grid;gap:4px}
.proj-client{font-size:12px;color:var(--muted)}
.proj h4{font-size:15.5px;font-weight:500;line-height:1.5}
.proj:hover h4{color:#c3d0ff;text-decoration:underline;text-underline-offset:3px}
.proj-metric{font-size:13px;color:var(--gold-soft)}

/* 讲师 */
.instructor{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:44px;align-items:start}
.ins-photo{width:100%;height:auto;border-radius:20px;border:1px solid var(--line)}
.instructor h2{font-size:clamp(32px,3.4vw,46px);font-weight:500;letter-spacing:-.03em}
.ins-role{font-size:15px;color:var(--gold-soft);margin-top:4px}
.ins-list{display:grid;gap:0;margin-top:20px;border-top:1px solid var(--line)}
.ins-list li{position:relative;padding:10px 0 10px 20px;border-bottom:1px solid #23282a;font-size:15px;color:var(--soft)}
.ins-list li::before{content:"";position:absolute;left:2px;top:1.35em;width:8px;height:1px;background:var(--accent-soft)}
.ins-story{font-size:15px;line-height:1.95;color:#bfc5c8;margin-top:20px}
.honors{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:24px;align-items:start}
.honor-img{width:100%;height:auto;border-radius:14px;border:1px solid var(--line)}
.honor-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.honor-list li{border:1px solid var(--line);border-radius:14px;background:var(--panel);padding:14px 16px;display:grid;gap:3px}
.honor-list b{font-weight:500;font-size:14.5px}
.honor-list span{font-size:13px;color:var(--muted)}
.orgs .chip{font-size:13px}
.media-list{border-top:1px solid var(--line)}
.media-list a{display:grid;grid-template-columns:90px 200px minmax(0,1fr) 20px;gap:16px;align-items:center;padding:15px 4px;border-bottom:1px solid var(--line);font-size:14.5px}
.media-list a:hover{background:#111618}
.media-list a:hover .m-title{color:#c3d0ff}
.m-date{color:var(--quiet);font-size:13px}
.m-src{color:var(--muted)}
.m-title{color:var(--soft)}
.media-list .ri{color:var(--muted)}

/* 收获、常见问题 */
.gains .card{gap:10px}
.gains .gain-key{grid-column:1/-1;border-color:var(--gold-line);background:linear-gradient(135deg,#1a1508 0%,var(--panel) 60%)}
.gain-key-head{display:flex;align-items:center;gap:12px}
.gain-key h3{color:var(--gold-soft)}
.buy-note{margin-top:28px;border:1px solid var(--gold);border-radius:20px;background:linear-gradient(135deg,#2a1f08 0%,var(--panel) 65%);padding:30px clamp(18px,3vw,40px);display:grid;gap:12px}
.buy-note .gold-tag{justify-self:start}
.buy-note h3{font-size:clamp(22px,2.6vw,32px);font-weight:600;letter-spacing:-.02em;line-height:1.35}
.buy-note h3 em{font-style:normal;color:var(--gold)}
.buy-note>p{font-size:15px;color:#c9c3b4}
.buy-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:8px 0 0}
.buy-stats div{display:flex;flex-direction:column-reverse;gap:4px;border:1px solid var(--gold-line);border-radius:14px;background:#16120a;padding:16px 18px}
.buy-stats dd{margin:0;font-size:clamp(22px,2.4vw,30px);font-weight:600;color:var(--gold);line-height:1.2}
.buy-stats dt{font-size:13px;color:var(--muted)}
.closing-sub{font-size:clamp(18px,2vw,24px)!important;line-height:1.6;color:var(--gold)!important;font-weight:500;margin-top:10px}
.faq-group{border-bottom:1px solid var(--line)}
.qa{border-top:1px solid var(--line)}
.q{font-size:17px;font-weight:500;line-height:1.55;padding:20px 0 8px}
.qa .a{padding:0 0 22px 0;font-size:15px;line-height:1.95;color:#bfc5c8;max-width:900px}

/* 收尾 */
.closing{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;border:1px solid var(--gold-line);border-radius:22px;background:radial-gradient(ellipse at 20% 0%,#2a1f08 0%,var(--panel) 62%);padding:48px clamp(20px,4vw,56px);margin:8px 0 88px}
.closing h2{font-size:clamp(28px,3vw,40px);font-weight:500;letter-spacing:-.04em;line-height:1.3;text-wrap:balance}
.closing p{color:#b6bdc0;font-size:15px;line-height:1.9;margin-top:12px}
.closing-qrs{display:grid;grid-template-columns:repeat(2,190px);gap:16px}
.closing-qr{background:#fff;border-radius:16px;padding:12px;text-align:center}
.closing-qr img{width:100%;height:auto;border-radius:8px}
.closing-qr figcaption{font-size:13px;color:#333;margin-top:6px}
.updated{font-size:12px;color:var(--quiet);text-align:center;margin:-60px 0 70px}

@media(max-width:1100px){
  .proj-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cards.c4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pts{padding-left:0}
  .gold-box{margin-left:0}
}
@media(max-width:860px){
  .hero{grid-template-columns:1fr;gap:32px;padding-top:44px}
  .hero-fig{aspect-ratio:4/3;max-width:640px}
  .feature-head{grid-template-columns:1fr}
  .cards.c3,.libs,.soft-groups,  .aud-main{grid-template-columns:1fr;padding:14px 14px 24px}
  .aud-main>div{padding:0 8px}
  .problems li{grid-template-columns:48px minmax(0,1fr)}
  .p-fix{grid-column:2}
  .proj-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pts,.av-cats{grid-template-columns:1fr}
  .instructor,.honors{grid-template-columns:1fr}
  .ins-photo,.honor-img{max-width:320px}
  .honor-list{grid-template-columns:1fr}
  .media-list a{grid-template-columns:76px minmax(0,1fr) 20px;gap:4px 12px}
  .m-src{grid-column:2}
  .m-title{grid-column:2}
  .media-list .ri{grid-column:3;grid-row:1/3}
  .closing{grid-template-columns:1fr}
  .closing-qrs{grid-template-columns:repeat(2,minmax(0,190px))}
  .music{grid-template-columns:1fr;gap:20px}
  .music-wave{height:64px;justify-content:flex-start}
}
@media(max-width:600px){
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats div:nth-child(3){border-left:0}
  .stats div:nth-child(n+3){border-top:1px solid var(--line)}
  .stats-3{grid-template-columns:1fr}
  .stats-3 div+div{border-left:0;border-top:1px solid var(--line)}
  .jump-wrap{margin-bottom:44px;justify-content:flex-start}
  .feature{padding:52px 0 60px}
  .lib-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .lib-feats li{grid-template-columns:1fr;gap:2px}
  .mod-head{grid-template-columns:52px minmax(0,1fr)}
  .mod-no{font-size:26px}
  .av-row{grid-template-columns:1fr;gap:6px}
  .cards.c4,.proj-grid{grid-template-columns:1fr}
  .gold-banner{flex-direction:column;align-items:flex-start;gap:10px}
  .q{font-size:16px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.proj,.btn{transition:none}}
/* v1.1：手机上页内目录换行显示，不再横向超出（照合作页 v1.17 的改法） */
@media(max-width:860px){.jump-nav{flex-wrap:wrap;justify-content:center;overflow:visible;border-radius:22px}.jump-nav a{padding:9px 14px}}
/* v1.2：培训现场照片和全部 30 条经历直接显示 */
.train-photos{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:22px}
.train-photos figure{margin:0}
.train-photos img{width:100%;height:auto;aspect-ratio:3/2;object-fit:cover;border-radius:10px;border:1px solid #23282a}
.train-photos .lead{grid-column:span 2;grid-row:span 2}
.train-photos .lead img{aspect-ratio:auto;height:calc(100% - 30px)}
.train-photos figcaption{font-size:12.5px;color:var(--muted);margin-top:6px;line-height:1.5}
.train-h{font-size:15px;font-weight:500;color:var(--soft);margin:30px 0 12px}
.train-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px;border-top:1px solid var(--line)}
.train-list li{display:grid;grid-template-columns:96px minmax(0,1fr);gap:14px;padding:14px 0;border-bottom:1px solid #23282a}
.tr-meta{display:flex;flex-direction:column;gap:6px;align-items:flex-start}
.tr-date{font-size:13px;color:var(--soft)}
.tr-type{font-size:11.5px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:1px 8px}
.train-list h5{font-size:14.5px;font-weight:500;line-height:1.55}
.train-list p{font-size:13px;color:#a9b0b3;line-height:1.75;margin-top:3px}
@media(max-width:860px){.train-photos{grid-template-columns:repeat(2,minmax(0,1fr))}.train-list{grid-template-columns:1fr}}
@media(max-width:600px){.train-list li{grid-template-columns:1fr;gap:6px}.tr-meta{flex-direction:row;align-items:center}}
/* v1.3：讲师带新人经验 */
.ins-mentor{margin-top:16px;padding:14px 18px;border:1px solid var(--gold-line);border-radius:12px;background:#1a1508;font-size:15px;line-height:1.85;color:#d9d3c4}
.ins-mentor b{color:var(--gold-soft);font-weight:500}
@media (max-width:560px){.buy-stats{grid-template-columns:minmax(0,1fr)}}
/* 全新 AI 工作流（v1.12） */
.wf-models{display:flex;flex-wrap:wrap;gap:10px;margin:-6px 0 20px}
.wf-model{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--gold-soft);border:1px solid var(--gold-line);background:#1d1709;border-radius:999px;padding:5px 14px}
.wf-model .ri{width:16px;height:16px;color:var(--gold)}
.wf{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;list-style:none;padding:0}
.wf-step{display:grid;grid-template-columns:48px 40px minmax(0,1fr);gap:14px;align-items:start;border:1px solid var(--line);border-radius:16px;background:var(--panel);padding:20px 22px}
.wf-no{font-size:30px;font-weight:600;color:var(--accent);letter-spacing:-.02em;line-height:1.1}
.wf-ic{width:40px;height:40px;border-radius:10px;background:#16203d;color:var(--accent-soft);display:grid;place-items:center}
.wf-ic .ri{width:22px;height:22px}
.wf-ph{font-size:12px;color:var(--accent-soft);letter-spacing:.12em}
.wf-step h3{font-size:18px;font-weight:500;margin-top:2px}
.wf-step p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:6px}
.wf-step .gold-tag{margin-top:10px}
@media (max-width:760px){.wf{grid-template-columns:1fr}.wf-step{grid-template-columns:40px minmax(0,1fr)}.wf-ic{display:none}}
#wf-title .gold-text{font-style:normal;display:block;font-size:.55em;line-height:1.4;margin-top:8px}
.wf-always{display:grid;grid-template-columns:40px minmax(0,1fr) minmax(0,340px);gap:16px;align-items:center;border:1px solid var(--gold);border-radius:16px;background:linear-gradient(135deg,#2a1f08 0%,var(--panel) 65%);padding:20px 22px;margin-bottom:12px}
.wf-always .wf-ph{color:var(--gold)}
.wf-always h3{font-size:18px;font-weight:500;margin-top:2px}
.wf-always p{font-size:14px;color:#c9c3b4;line-height:1.8;margin-top:6px}
.wf-always .gold-tag{margin-top:10px}
.wf-ic.gold{background:#3a2c0c;color:var(--gold)}
.wf-lane-row{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:4px}
.wf-lane-row span{font-size:12px;text-align:center;color:#c8d2ee;border:1px solid #2c4bb8;background:#14214a;border-radius:6px;padding:4px 0}
.wf-goldbar{margin-top:6px;font-size:13px;text-align:center;color:#1a1306;background:linear-gradient(90deg,#6b5428,var(--gold) 15%,var(--gold) 85%,#6b5428);border-radius:6px;padding:5px 0;font-weight:500}
@media (max-width:900px){.wf-always{grid-template-columns:40px minmax(0,1fr)}.wf-lanes{grid-column:1/-1}}
@media (max-width:760px){.wf-always{grid-template-columns:minmax(0,1fr)}.wf-always .wf-ic{display:none}}