/* ===========================================================
   新能源模块 · 共用样式（目录页 new-energy.html + 风电科普页 wind.html）
   =========================================================== */
:root{--bg-0:#05081a;--bg-1:#0a1230;--bg-2:#0d1a3f;--cyan:#34e3ff;--blue:#4d7cff;--amber:#ffcf3f;--text:#eaf1ff;--muted:#93a6cf;--line:rgba(120,180,255,.16);--glass:rgba(255,255,255,.045)}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Noto Sans SC",sans-serif;background:var(--bg-0);color:var(--text);line-height:1.75;overflow-x:hidden}
.bg-fx{position:fixed;inset:0;z-index:-2;background:radial-gradient(1200px 700px at 78% -8%,rgba(52,227,255,.18),transparent 60%),radial-gradient(900px 600px at 8% 18%,rgba(77,124,255,.16),transparent 60%),linear-gradient(180deg,var(--bg-0),var(--bg-1) 45%,var(--bg-2))}
a{color:inherit;text-decoration:none}
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);background:linear-gradient(180deg,rgba(5,8,26,.85),rgba(5,8,26,.45));border-bottom:1px solid var(--line)}
.nav-inner{max-width:1100px;margin:0 auto;padding:14px 26px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:18px}
.brand .mark{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:radial-gradient(circle at 35% 30%,rgba(52,227,255,.35),rgba(77,124,255,.18));border:1px solid rgba(52,227,255,.4);box-shadow:0 0 40px rgba(52,227,255,.35)}
.back{padding:9px 18px;border-radius:999px;font-size:14px;font-weight:700;color:var(--cyan);border:1px solid rgba(52,227,255,.4);background:rgba(52,227,255,.07);transition:.25s}
.back:hover{background:rgba(52,227,255,.15)}
.wrap{max-width:1100px;margin:0 auto;padding:0 26px}
.hero{padding:76px 0 40px;text-align:center}
.tag{display:inline-block;font-family:"Orbitron",sans-serif;font-size:12px;letter-spacing:.2em;color:var(--amber);border:1px solid rgba(255,207,63,.4);padding:6px 14px;border-radius:999px;background:rgba(255,207,63,.07)}
.hero h1{font-size:clamp(30px,5vw,52px);font-weight:900;margin:20px 0 14px}
.hero h1 .glow{background:linear-gradient(120deg,var(--cyan),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{color:var(--muted);max-width:660px;margin:0 auto;font-size:16px}
.sec{padding:52px 0}
.sec-head{text-align:center;margin-bottom:36px}
.sec-head .kicker{font-family:"Orbitron",sans-serif;font-size:12px;letter-spacing:.22em;color:var(--cyan)}
.sec-head h2{font-size:28px;font-weight:900;margin:8px 0 8px}
.sec-head p{color:var(--muted);font-size:15px}

/* 面包屑 */
.crumb{max-width:1100px;margin:18px auto 0;padding:0 26px;font-size:13.5px;color:var(--muted)}
.crumb a{color:var(--cyan)}
.crumb a:hover{text-decoration:underline}
.crumb span{opacity:.6;margin:0 6px}

/* ---------- 目录页：子模块导航 ---------- */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:760px){.grid{grid-template-columns:1fr}}
.card{position:relative;display:block;padding:20px;border-radius:18px;background:var(--glass);border:1px solid var(--line);transition:.3s}
.card:hover{transform:translateY(-6px);border-color:rgba(52,227,255,.5);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.card .n{font-family:"Orbitron",sans-serif;font-size:13px;color:var(--cyan);letter-spacing:.1em}
.card h3{font-size:17px;margin:8px 0 6px}
.card p{color:var(--muted);font-size:14px}
.card .flag{position:absolute;top:16px;right:16px;font-size:11px;padding:3px 9px;border-radius:999px;border:1px solid var(--line);color:var(--muted)}
.card.live{border-color:rgba(52,227,255,.55);background:radial-gradient(circle at 80% 0%,rgba(52,227,255,.16),transparent 60%),var(--glass)}
.card.live:hover{box-shadow:0 18px 44px rgba(0,0,0,.4),0 0 30px rgba(52,227,255,.22)}
.card.live .flag{color:#04122b;background:linear-gradient(120deg,var(--cyan),var(--blue));border:none;font-weight:800}
.card .go{margin-top:14px;display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:700;color:var(--cyan)}
.card .go svg{width:16px;height:16px;transition:.3s}
.card.live:hover .go svg{transform:translateX(5px)}

/* ---------- 风电科普页 ---------- */
/* 什么是风力发电 */
.intro{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;margin-top:6px}
@media(max-width:900px){.intro{grid-template-columns:1fr}}
.intro-text p{color:#c7d5f2;font-size:15.5px;margin-bottom:14px}
.intro-text .lead{font-size:17px;color:var(--text);font-weight:500}
.intro-text b{color:var(--cyan)}
.intro-fig{border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:0 24px 60px rgba(0,0,0,.45)}
.intro-fig img{display:block;width:100%;height:100%;object-fit:cover}
.intro-fig figcaption{padding:10px 14px;font-size:12.5px;color:var(--muted);background:rgba(6,12,30,.9);border-top:1px solid var(--line)}
.flow{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:20px 0 4px}
.flow span{padding:8px 14px;border-radius:999px;font-size:13.5px;font-weight:600;color:#dff2ff;background:rgba(52,227,255,.10);border:1px solid rgba(52,227,255,.35)}
.flow i{color:var(--cyan);font-style:normal;font-weight:700}
.note{margin-top:20px;padding:16px 20px;border-radius:14px;background:rgba(255,207,63,.07);border:1px solid rgba(255,207,63,.3);color:#ffe9a8;font-size:14px}
.note b{color:#fff}

/* 部件卡片 */
.parts-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
@media(max-width:820px){.parts-grid{grid-template-columns:1fr}}
.part-card{display:grid;grid-template-columns:170px 1fr;gap:18px;padding:16px;border-radius:18px;background:var(--glass);border:1px solid var(--line);transition:.3s}
.part-card:hover{border-color:rgba(52,227,255,.5);transform:translateY(-4px);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.part-card .thumb{border-radius:12px;overflow:hidden;border:1px solid var(--line);background:#08122b}
.part-card .thumb img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover;transition:.4s}
.part-card:hover .thumb img{transform:scale(1.06)}
.part-card .idx{font-family:"Orbitron",sans-serif;font-size:12px;color:var(--cyan);letter-spacing:.14em}
.part-card h3{font-size:19px;margin:4px 0 2px}
.part-card h3 .en{font-size:12px;color:var(--muted);font-weight:500;margin-left:8px;letter-spacing:.06em}
.part-card p{color:var(--muted);font-size:14px}
.part-card .role{display:inline-block;margin-top:8px;font-size:12px;padding:3px 10px;border-radius:999px;color:var(--cyan);background:rgba(52,227,255,.1);border:1px solid rgba(52,227,255,.3)}

/* 3D 探索区 */
.viewer{display:grid;grid-template-columns:1.6fr 1fr;gap:22px;align-items:stretch}
@media(max-width:940px){.viewer{grid-template-columns:1fr}}
.viewer-stage{position:relative;height:540px;border-radius:20px;overflow:hidden;border:1px solid var(--line);
  background:radial-gradient(circle at 50% 12%,rgba(52,227,255,.12),transparent 62%),linear-gradient(180deg,rgba(7,13,34,.9),rgba(9,18,46,.92))}
.viewer-stage canvas{display:block;width:100%;height:100%;touch-action:none;cursor:grab}
.viewer-stage canvas:active{cursor:grabbing}
.stage-hint{position:absolute;left:14px;bottom:12px;font-size:12.5px;color:var(--muted);background:rgba(5,10,26,.72);border:1px solid var(--line);padding:7px 12px;border-radius:999px;pointer-events:none}
.loading{position:absolute;inset:0;display:grid;place-items:center;gap:14px;background:rgba(5,8,24,.92);z-index:5;transition:opacity .5s;font-size:14px;color:var(--muted);text-align:center;padding:20px}
.loading.hide{opacity:0;pointer-events:none}
.spinner{width:38px;height:38px;border-radius:50%;border:3px solid rgba(52,227,255,.25);border-top-color:var(--cyan);animation:spin .9s linear infinite;margin:0 auto 12px}
@keyframes spin{to{transform:rotate(360deg)}}

.info{display:flex;flex-direction:column;border-radius:20px;padding:24px;background:radial-gradient(circle at 10% 0%,rgba(52,227,255,.12),transparent 55%),var(--glass);border:1px solid var(--line);min-height:540px}
.info .ph{flex:1;display:flex;flex-direction:column;justify-content:center;text-align:center;color:var(--muted);font-size:14.5px;line-height:2}
.info .ph .big{font-size:40px;margin-bottom:10px}
.info .head{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.info .dot{width:10px;height:10px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
.info h3{font-size:23px}
.info .en{font-family:"Orbitron",sans-serif;font-size:11.5px;letter-spacing:.18em;color:var(--cyan);margin-bottom:14px}
.info .pic{border-radius:14px;overflow:hidden;border:1px solid var(--line);margin:2px 0 16px}
.info .pic img{display:block;width:100%;aspect-ratio:16/10;object-fit:cover}
.info p.txt{color:#c7d5f2;font-size:14.5px}
.info .tip{margin-top:auto;padding-top:16px;border-top:1px dashed var(--line);font-size:12.5px;color:var(--muted)}
.info .anim{animation:fadeUp .5s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:22px}
.chip{padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;color:#cfe3ff;background:rgba(255,255,255,.05);border:1px solid var(--line);cursor:pointer;transition:.22s}
.chip:hover{border-color:rgba(52,227,255,.6);color:#fff;transform:translateY(-2px)}
.chip.on{color:#04122b;background:linear-gradient(120deg,var(--cyan),var(--blue));border-color:transparent;box-shadow:0 10px 26px rgba(52,227,255,.32)}

.playbar{margin-top:40px;text-align:center}
.btn-play{display:inline-flex;align-items:center;gap:12px;padding:18px 42px;border-radius:16px;font-size:18px;font-weight:800;color:#fff;
  background:linear-gradient(120deg,#1667e8,#2f8dff 55%,#34e3ff);
  box-shadow:0 16px 44px rgba(28,110,255,.5),inset 0 0 0 1px rgba(180,225,255,.55),0 0 0 0 rgba(52,227,255,.6);
  animation:pulse 2.4s ease-in-out infinite;transition:transform .25s}
.btn-play:hover{transform:translateY(-3px) scale(1.015)}
@keyframes pulse{0%,100%{box-shadow:0 16px 44px rgba(28,110,255,.5),inset 0 0 0 1px rgba(180,225,255,.55),0 0 0 0 rgba(52,227,255,.5)}50%{box-shadow:0 16px 44px rgba(28,110,255,.5),inset 0 0 0 1px rgba(180,225,255,.55),0 0 0 14px rgba(52,227,255,0)}}
.playbar small{display:block;margin-top:12px;color:var(--muted);font-size:13px}
footer{border-top:1px solid var(--line);padding:34px 0;text-align:center;color:var(--muted);font-size:13px;margin-top:20px}