@import url("../_shared/ai-case-wall.css");
/* 光影魔术课堂页 · 宏视传媒 × 光影（深色、荧光绿、少量青色） */
@font-face{font-family:"HS Sans";src:url("fonts/SourceHanSansCN-Regular.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"HS Sans";src:url("fonts/SourceHanSansCN-Bold.woff2") format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Poppins";src:url("fonts/Poppins-Regular.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Poppins";src:url("fonts/Poppins-SemiBold.woff2") format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Poppins";src:url("fonts/Poppins-BoldItalic.woff2") format("woff2");font-weight:700;font-style:italic;font-display:swap}

:root{
  --bg:#0a0a0a;--bg2:#111;--card:#151515;--card2:#1b1b1b;
  --line:#262626;--line2:#3a3a3a;
  --ink:#f3f3f3;--sub:#a3a3a3;--dim:#6f6f6f;
  --lime:#aaff00;--teal:#3ee6d0;
  --r:14px;--wrap:1290px;
  --cn:"HS Sans","Poppins",system-ui,sans-serif;--en:"Poppins","HS Sans",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:88px;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--cn);font-size:15px;line-height:1.6;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;color:inherit}
ol{list-style:none}
.wrap{width:min(var(--wrap),100% - 48px);margin-inline:auto}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:16px;top:-60px;z-index:50;padding:10px 16px;border-radius:999px;background:var(--lime);color:#000;font-weight:700}
.skip:focus{top:12px}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}

/* 顶栏：与首页一致，品牌同字号、光影细字重 */
.nav{position:sticky;top:0;z-index:30;background:rgba(10,10,10,.72);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.06)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:inline-flex;align-items:baseline;gap:8px;font-size:22px;line-height:1;color:var(--lime)}
.brand .a{font-weight:700}
.brand .b{font-weight:400}
.brand i{font-style:normal;font-size:.8em;opacity:.8}
.menu{display:flex;gap:30px}
.menu a{position:relative;font-size:15px;font-weight:700;color:#e6e6e6;padding:8px 0}
.menu a:hover{color:#fff}
.menu a.on{color:var(--lime)}
.menu a.on::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);border-radius:2px}
.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line2);border-radius:999px;background:transparent;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.menu-btn i{display:block;width:16px;height:1.5px;background:var(--ink);transition:transform .2s}
.menu-btn[aria-expanded="true"] i:first-of-type{transform:translateY(3.25px) rotate(45deg)}
.menu-btn[aria-expanded="true"] i:last-of-type{transform:translateY(-3.25px) rotate(-45deg)}

/* 通用 */
.eyebrow{display:flex;align-items:center;gap:12px;font-family:var(--en);font-size:12px;font-weight:600;color:var(--sub)}
.eyebrow i{width:28px;height:1px;background:currentColor}
.lead{color:var(--sub);font-size:17px}
h2{font-size:44px;line-height:1.15;font-weight:700;margin-top:12px}
.sec{padding:96px 0}
.shead{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:34px}
.note{color:var(--dim);font-size:14px}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:700;line-height:1}
.tag.lime{background:var(--lime);color:#000}
.tag.teal{background:rgba(62,230,208,.12);color:var(--teal);border:1px solid rgba(62,230,208,.28)}

/* 首屏 */
.hero{padding:72px 0 24px;border-bottom:1px solid var(--line)}
.hero-in{display:grid;grid-template-columns:1fr minmax(0,560px);gap:56px;align-items:end}
.hero h1{margin-top:22px;line-height:1}
.hero h1 .vision{display:block;font-family:var(--en);font-style:italic;font-weight:700;font-size:56px;color:var(--lime);margin-bottom:10px}
.hero h1 span{display:block;font-size:96px;font-weight:700}
.hero .lead{margin-top:22px}
.jump{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-bottom:48px}
.jump a{display:inline-flex;align-items:center;gap:10px;height:48px;padding:0 22px 0 16px;border:1px solid var(--line2);border-radius:999px;font-weight:700;transition:border-color .2s,background .2s}
.jump a b{font-family:var(--en);font-style:italic;color:var(--lime)}
.jump a:hover{border-color:var(--lime);background:rgba(170,255,0,.06)}
.hero-feature{position:relative;display:block;margin-bottom:48px;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:var(--card)}
.hf-media{display:block;aspect-ratio:4/3;overflow:hidden}
.hf-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.hero-feature:hover .hf-media img{transform:scale(1.03)}
.hf-cap{display:flex;align-items:center;gap:12px;padding:16px 18px;border-top:1px solid var(--line)}
.hf-cap strong{flex:1;min-width:0;font-size:16px;line-height:1.4;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.arrow{display:inline-grid;place-items:center;width:34px;height:34px;flex:none;border:1px solid var(--line2);border-radius:999px;font-family:var(--en);transition:.2s}
.hero-feature:hover .arrow,.card a:hover .arrow{background:var(--lime);border-color:var(--lime);color:#000}

/* 教学：筛选 + 卡片 */
.count{display:flex;align-items:baseline;gap:6px;color:var(--sub)}
.count b{font-family:var(--en);font-weight:600;font-size:40px;line-height:1;color:var(--ink)}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:30px;padding:10px;border:1px solid var(--line);border-radius:999px;background:var(--bg2)}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 16px;border:0;border-radius:999px;background:transparent;color:var(--sub);font-size:14px;font-weight:700;cursor:pointer;transition:background .2s,color .2s}
.chip small{font-family:var(--en);font-size:11px;font-weight:600;color:var(--dim)}
.chip:hover{color:var(--ink);background:var(--card2)}
.chip[aria-pressed="true"]{background:var(--lime);color:#000}
.chip[aria-pressed="true"] small{color:rgba(0,0,0,.55)}
.search{position:relative;flex:0 0 280px}
.search input{width:100%;height:40px;padding:0 42px 0 18px;border:1px solid var(--line2);border-radius:999px;background:var(--card);font-size:14px;outline:none;transition:border-color .2s}
.search input::placeholder{color:var(--dim)}
.search input:focus{border-color:var(--lime)}
.search svg{position:absolute;right:15px;top:11px;width:18px;height:18px;fill:none;stroke:var(--sub);stroke-width:1.8;stroke-linecap:round;pointer-events:none}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px 20px}
.card a{display:flex;flex-direction:column;height:100%;padding:10px 10px 14px;border:1px solid var(--line);border-radius:var(--r);background:var(--card);transition:border-color .2s,transform .25s,background .2s}
.card a:hover{border-color:var(--lime);background:var(--card2);transform:translateY(-3px)}
.cv{position:relative;display:block;aspect-ratio:4/3;border-radius:10px;overflow:hidden;background:#000}
.cv img{position:relative;width:100%;height:100%;object-fit:cover}
.cv .no{position:absolute;left:8px;top:8px;z-index:2;height:24px;padding:0 9px;border-radius:999px;background:rgba(0,0,0,.72);color:var(--lime);font-family:var(--en);font-size:12px;font-weight:600;line-height:24px}
/* 04：原图完整宽度展示，只用 clip-path 遮去底部约 14% 的旧示例价格条，不切标题与人脸 */
.cv.crop-bottom img{object-fit:contain;clip-path:inset(0 0 14% 0)}
/* 06：竖图完整呈现，左右用同图柔化铺底，不拉伸 */
.cv.portrait::before{content:"";position:absolute;inset:-20px;background:var(--src) center/cover;filter:blur(18px) brightness(.45)}
.cv.portrait img{object-fit:contain}
.tt{margin:14px 4px 0;font-size:16px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.mt{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:auto 4px 0;padding-top:14px}
.mt time{font-family:var(--en);font-size:12px;color:var(--dim)}
.mt .arrow{width:30px;height:30px;font-size:13px}
.empty{padding:56px 0;text-align:center;color:var(--sub)}
.empty button{margin-left:10px;height:36px;padding:0 16px;border:1px solid var(--line2);border-radius:999px;background:transparent;cursor:pointer}
.empty button:hover{border-color:var(--lime)}

/* 生成：真实未开放状态 */
#gen{padding-top:0}
.gen{display:grid;grid-template-columns:1fr minmax(0,520px);gap:48px;align-items:center;padding:52px;border:1px solid var(--line);border-radius:24px;background:linear-gradient(180deg,#141414,#0f0f0f)}
.gen-copy .lead{margin-top:14px}
.gen-box{padding:18px;border:1px solid var(--line2);border-radius:20px;background:var(--bg)}
.gen-box textarea{width:100%;height:112px;padding:14px;border:0;border-radius:12px;background:var(--card);resize:none;font-size:15px;cursor:not-allowed}
.gen-box textarea::placeholder{color:var(--dim)}
.gen-row{display:flex;justify-content:space-between;align-items:center;margin-top:14px}
.state{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--teal)}
.state i{width:7px;height:7px;border-radius:50%;background:var(--teal)}
.btn{height:42px;padding:0 24px;border:0;border-radius:999px;background:#2a2a2a;color:var(--dim);font-weight:700;cursor:not-allowed}

/* 作品墙 */
#works{padding-top:0}

/* 页脚 */
.foot{border-top:1px solid var(--line);padding:40px 0 56px}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.foot nav{display:flex;gap:24px;flex-wrap:wrap}
.foot nav a{color:var(--sub);font-size:14px}
.foot nav a:hover{color:var(--lime)}

/* 入场动效；?screenshot=1 与减少动态偏好直接完成态 */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.on{opacity:1;transform:none}
.shot .rv,.shot *{transition:none!important;animation:none!important}
.shot .rv{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.rv{opacity:1;transform:none;transition:none}*{transition:none!important}}

/* 平板 */
@media (max-width:1100px){
  .grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .hero-in{grid-template-columns:1fr 1fr;gap:36px}
  .hero h1 span{font-size:72px}
  .toolbar{flex-direction:column;align-items:stretch;border-radius:20px}
  .search{flex:none}
}
@media (max-width:820px){
  .grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gen{grid-template-columns:1fr;padding:32px}
}
/* 手机 390 */
@media (max-width:640px){
  .wrap{width:calc(100% - 32px)}
  .nav-in{height:60px}
  .brand{font-size:18px}
  .menu-btn{display:flex}
  .menu{position:absolute;left:0;right:0;top:60px;flex-direction:column;gap:0;padding:8px 16px 16px;background:rgba(10,10,10,.96);border-bottom:1px solid var(--line);display:none}
  .menu.open{display:flex}
  .menu a{padding:14px 0;border-bottom:1px solid var(--line)}
  .menu a.on::after{display:none}
  .hero{padding:40px 0 8px}
  .hero-in{grid-template-columns:1fr;gap:28px}
  .hero h1 .vision{font-size:38px}
  .hero h1 span{font-size:52px}
  .jump{margin-top:28px;padding-bottom:0}
  .jump a{height:44px;padding:0 16px 0 12px;font-size:14px}
  .hero-feature{margin-bottom:32px}
  .sec{padding:64px 0}
  h2{font-size:32px}
  .count b{font-size:30px}
  .chips{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin:-2px;padding:2px}
  .chips::-webkit-scrollbar{display:none}
  .chip{flex:none}
  .grid{grid-template-columns:1fr;gap:16px}
  .card a{flex-direction:row;gap:12px;padding:8px}
  .card .cv{flex:0 0 132px;height:99px;aspect-ratio:auto}
  .card .body{display:flex;flex-direction:column;min-width:0;flex:1}
  .tt{margin:2px 0 0;font-size:15px}
  .mt{margin:auto 0 0;padding-top:8px}
  .gen{padding:24px;border-radius:20px}
}
@media (min-width:641px){.card .body{display:contents}}

/* 真实工具入口：荧光绿按钮，功能说明紧随下方。 */
.gen-box{padding:30px}.tool-launch{display:inline-flex;align-items:center;justify-content:center;gap:28px;min-height:52px;height:auto;padding:14px 26px;background:#aaff00;color:#080808;cursor:pointer;text-decoration:none;line-height:1.5;transition:background .2s,transform .2s}
.tool-launch:hover{background:#c1ff49;transform:translateY(-1px)}.tool-launch:focus-visible{outline:2px solid #fff;outline-offset:4px}
.tool-features{margin-top:20px;max-width:440px;color:#bcbcc2;font-size:15px;line-height:1.9}
@media(max-width:760px){.gen-box{padding:24px}.tool-launch{width:100%;gap:24px}.tool-features{font-size:14px}}
@media(prefers-reduced-motion:reduce){.tool-launch{transition:none}.tool-launch:hover{transform:none}}
/* 窄屏不让日期的最小内容宽度撑开教程列表。 */
@media(max-width:640px){.grid{grid-template-columns:minmax(0,1fr)}.card{min-width:0}.mt{flex-wrap:wrap;gap:4px}}
@media(max-width:360px){.card .cv{flex-basis:104px;height:88px}.tool-launch{padding:14px 16px;gap:10px}}