/* ============================================================
   AI 科技风主题 —— 王旭 AI 讲师个人品牌网站
   ============================================================ */
:root{
  --bg:#070B16; --bg2:#0B1226;
  --panel:rgba(15,23,42,.66); --panel-2:rgba(10,16,32,.82);
  --line:rgba(99,179,237,.16); --line-2:rgba(99,179,237,.34);
  --text:#E7EEF9; --muted:#94A6C3; --head:#F4F8FF;
  --cyan:#22D3EE; --blue:#3B82F6; --violet:#8B5CF6;
  --grad:linear-gradient(120deg,#22D3EE 0%,#3B82F6 50%,#8B5CF6 100%);
  --font-sans:"Inter","Segoe UI Variable","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono","SFMono-Regular","SF Mono",Consolas,monospace;
  --radius:16px; --maxw:1320px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);color:var(--text);line-height:1.75;
  background:
    radial-gradient(1100px 620px at 84% -8%,rgba(59,130,246,.20),transparent 60%),
    radial-gradient(900px 520px at 0% 8%,rgba(34,211,238,.12),transparent 55%),
    radial-gradient(1000px 700px at 94% 38%,rgba(139,92,246,.15),transparent 62%),
    radial-gradient(820px 600px at 4% 72%,rgba(34,211,238,.11),transparent 58%),
    radial-gradient(700px 480px at 55% 108%,rgba(59,130,246,.12),transparent 60%),
    linear-gradient(180deg,#070B16 0%,#0A1022 45%,#070B16 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
/* 顶部极光带：横贯页首的青-蓝-紫光晕，强化 AI 氛围 */
body::after{
  content:"";position:fixed;left:-10%;right:-10%;top:-180px;height:460px;z-index:0;
  pointer-events:none;opacity:.45;filter:blur(70px);
  background:linear-gradient(90deg,transparent 4%,rgba(34,211,238,.20) 26%,
    rgba(59,130,246,.26) 50%,rgba(139,92,246,.20) 76%,transparent 96%);
}

/* ---------------- AI 背景特效层：神经网络 + 数据流 + 粒子 ---------------- */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bg-fx svg{width:100%;height:100%;display:block}
.neural-flow path{stroke-dasharray:5 16;animation:dataflow 10s linear infinite}
@keyframes dataflow{to{stroke-dashoffset:-210}}
.neural-node{animation:nodepulse 4.5s ease-in-out infinite}
@keyframes nodepulse{0%,100%{opacity:.35}50%{opacity:.95}}
.particle{position:absolute;border-radius:50%;
  background:radial-gradient(circle,rgba(34,211,238,.85),rgba(34,211,238,0) 70%);
  box-shadow:0 0 12px rgba(34,211,238,.5);animation:drift 22s ease-in-out infinite}
@keyframes drift{
  0%{transform:translate(0,0);opacity:.25}
  25%{opacity:.85}
  50%{transform:translate(36px,-48px);opacity:.45}
  75%{opacity:.8}
  100%{transform:translate(-24px,32px);opacity:.25}
}
@media (prefers-reduced-motion:reduce){
  .neural-flow path,.neural-node,.particle{animation:none}
}

/* ---------------- 排版体系：行高与层级 ---------------- */
h1,h2,h3,h4{line-height:1.35}
.card p,.pillar-item p,.consult-featured p,.section-lede{line-height:1.8}
.intro-text,.feature-list li{line-height:1.85}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(99,179,237,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(99,179,237,.05) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(circle at 50% 8%,#000 0%,transparent 74%);
  mask-image:radial-gradient(circle at 50% 8%,#000 0%,transparent 74%);
}
a{text-decoration:none;color:inherit}
img{max-width:100%}
/* 成段文字统一两端对齐，杜绝右侧参差 */
.intro-text,.section-lede,.card p,.pillar-item p,.consult-featured p,
.feature-list li,.cert-list li,.timeline li,.honor-block p{text-align:justify}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}
section{scroll-margin-top:84px}

/* ---------------- 顶部导航 ---------------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,22,.72);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:66px;position:relative}
.brand{font-weight:800;font-size:18px;letter-spacing:.5px;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{color:var(--muted);font-size:14px;font-weight:500;transition:.2s;position:relative}
.nav-links a:hover{color:var(--head)}
.nav-links a:not(.nav-cta)::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:.25s;border-radius:2px}
.nav-links a:not(.nav-cta):hover::after{transform:scaleX(1)}
.nav-cta{background:var(--grad);color:#04121f!important;font-weight:700;padding:8px 18px;border-radius:999px;
  box-shadow:0 6px 20px rgba(34,211,238,.28)}
.nav-cta:hover{filter:brightness(1.08)}
.nav-toggle{display:none;background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--head);
  font-size:20px;cursor:pointer;border-radius:10px;width:44px;height:38px;align-items:center;justify-content:center}

/* ---------------- 首屏（双栏：文字 + 形象照） ---------------- */
.hero{position:relative;overflow:hidden;padding:104px 0 92px}
.hero-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:52px;align-items:center}
.hero-roles{margin-top:12px;font-size:15.5px;font-weight:600;color:var(--cyan);letter-spacing:.5px}
.hero-photo{position:relative;justify-self:end;width:min(330px,100%)}
.hero-photo::before{content:"";position:absolute;inset:-8%;z-index:0;border-radius:28px;
  background:linear-gradient(135deg,rgba(34,211,238,.35),rgba(59,130,246,.28),rgba(139,92,246,.35));
  filter:blur(34px);opacity:.75}
.hero-photo img{position:relative;z-index:1;width:100%;aspect-ratio:3/4;object-fit:cover;display:block;
  border-radius:20px;border:1px solid var(--line-2);
  box-shadow:0 28px 70px rgba(4,8,18,.7),0 0 0 1px rgba(34,211,238,.14) inset}
.hero-photo-cap{position:relative;z-index:1;text-align:center;margin-top:14px;font-family:var(--font-mono);
  font-size:12.5px;letter-spacing:2.5px;color:var(--muted)}
.hero::before{content:"";position:absolute;width:680px;height:680px;right:-160px;top:-220px;
  background:radial-gradient(circle,rgba(59,130,246,.35),transparent 62%);filter:blur(8px);z-index:0}
.hero::after{content:"";position:absolute;width:520px;height:520px;left:-180px;bottom:-260px;
  background:radial-gradient(circle,rgba(139,92,246,.26),transparent 62%);z-index:0}
.hero .container{position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-mono);font-size:12.5px;
  letter-spacing:3px;text-transform:uppercase;color:var(--cyan);margin-bottom:20px;
  padding:7px 15px;border:1px solid var(--line-2);border-radius:999px;background:rgba(34,211,238,.06)}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.hero h1{font-size:clamp(40px,5vw,60px);line-height:1.05;font-weight:850;letter-spacing:-1px;color:var(--head)}
.hero h2{font-size:clamp(20px,2.2vw,24px);font-weight:600;margin-top:14px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead-line{font-size:15px;color:var(--muted);margin-top:18px;font-family:var(--font-mono);letter-spacing:.4px}
.hero-dir{font-size:15px;color:#c6d4ea;margin-top:10px}
.hero-dir strong{color:var(--cyan)}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 30px}
.chip{background:rgba(255,255,255,.05);border:1px solid var(--line);color:#cfe0f7;
  padding:7px 14px;border-radius:999px;font-size:13px;font-family:var(--font-mono);transition:.2s}
.chip:hover{border-color:var(--line-2);color:var(--cyan)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn{padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;cursor:pointer;border:none;
  display:inline-flex;align-items:center;gap:8px;transition:.22s}
.btn-primary{background:var(--grad);color:#04121f;box-shadow:0 8px 26px rgba(34,211,238,.30)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{background:rgba(255,255,255,.04);border:1px solid var(--line-2);color:var(--head)}
.btn-ghost:hover{background:rgba(34,211,238,.10);border-color:var(--cyan)}

/* ---------------- 区块节奏 ---------------- */
.section{padding:88px 0;position:relative}
.section-alt{background:linear-gradient(180deg,rgba(10,16,34,.55),rgba(10,16,34,.15))}
.section-title{display:flex;align-items:center;gap:13px;font-size:clamp(21px,2.2vw,26px);font-weight:800;
  color:var(--head);letter-spacing:.2px;margin-bottom:8px}
.section-title .ico{width:28px;height:28px;flex:none;color:var(--cyan);filter:drop-shadow(0 0 10px rgba(34,211,238,.55))}
.section-lede{color:var(--muted);font-size:15.5px;margin-bottom:28px;max-width:980px}
.sub-title{font-size:16.5px;font-weight:700;color:#dbe7fb;margin:36px 0 16px;display:flex;align-items:center;gap:10px}
.sub-title::before{content:"";width:4px;height:18px;border-radius:3px;background:var(--grad)}
.intro-text{font-size:16.5px;color:#c9d6ea;max-width:1120px;line-height:1.85}
/* 彩色区块标题：青 / 蓝 / 紫轮换，核心区块全渐变，层次分明 */
.section-title span{background:var(--tc,var(--grad));-webkit-background-clip:text;background-clip:text;color:transparent}
.t-cyan{--tc:linear-gradient(115deg,#22D3EE 10%,#67E8F9 55%,#60A5FA 100%)}
.t-blue{--tc:linear-gradient(115deg,#60A5FA 10%,#818CF8 60%,#22D3EE 100%)}
.t-violet{--tc:linear-gradient(115deg,#A78BFA 10%,#8B5CF6 55%,#F472B6 100%)}
.t-grad{--tc:linear-gradient(115deg,#22D3EE 0%,#3B82F6 50%,#8B5CF6 100%)}
.t-cyan .ico{color:#22D3EE;filter:drop-shadow(0 0 8px rgba(34,211,238,.6))}
.t-blue .ico{color:#60A5FA;filter:drop-shadow(0 0 8px rgba(96,165,250,.6))}
.t-violet .ico{color:#A78BFA;filter:drop-shadow(0 0 8px rgba(167,139,250,.6))}
.t-grad .ico{color:#22D3EE;filter:drop-shadow(0 0 10px rgba(34,211,238,.65))}
/* 像素图标 */
.ico.px{image-rendering:pixelated}

/* ---------------- 列表 ---------------- */
.feature-list{list-style:none;display:grid;gap:14px;max-width:1120px}
.feature-list li{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:16px 20px 16px 22px;font-size:15.5px;color:#cdd9ec;overflow:hidden;transition:.2s}
.feature-list li:hover{border-color:var(--line-2)}
.feature-list li::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad)}
.feature-list li strong{color:var(--cyan)}

/* ---------------- 网格 / 卡片 ---------------- */
.grid{display:grid;gap:20px}
.skills-grid{grid-template-columns:repeat(auto-fill,minmax(290px,1fr))}
.course-grid{grid-template-columns:repeat(auto-fill,minmax(330px,1fr))}
.case-grid{grid-template-columns:repeat(auto-fill,minmax(330px,1fr))}
.case-group{grid-template-columns:repeat(auto-fill,minmax(270px,1fr));margin-top:16px}
.card{position:relative;background:linear-gradient(180deg,rgba(17,25,45,.82),rgba(10,16,32,.82));
  border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 24px;overflow:hidden;transition:.25s}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:2px;background:var(--grad);opacity:.5;transition:.25s}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);
  box-shadow:0 16px 44px rgba(6,10,22,.6),0 0 0 1px rgba(34,211,238,.14) inset}
.card:hover::before{opacity:1}
.card h3{font-size:16px;color:var(--head);margin:10px 0 8px;line-height:1.5}
.card p{font-size:15px;color:#a9bbd6}
.num{display:inline-block;font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--cyan);
  letter-spacing:1px;padding:2px 9px;border:1px solid var(--line-2);border-radius:8px;background:rgba(34,211,238,.06)}
.tag{display:inline-flex;align-items:center;background:rgba(34,211,238,.10);color:var(--cyan);
  border:1px solid rgba(34,211,238,.25);font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;
  font-family:var(--font-mono);letter-spacing:.4px}
.case-sub{color:#7fe3f2!important;font-weight:700;font-family:var(--font-mono);font-size:12.5px!important;letter-spacing:.3px}
.case-img{width:100%;height:160px;object-fit:cover;border-radius:12px;margin-bottom:12px;background:#0b1226;border:1px solid var(--line)}

/* 认证方向 / 时间线 */
.cert-list{list-style:none;display:grid;gap:10px;max-width:1120px}
.cert-list li{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:13px 18px;font-size:15px;color:#c3d2e8}
.cert-list strong{color:var(--cyan);font-family:var(--font-mono);font-size:12.5px;letter-spacing:.3px}
.timeline{list-style:none;max-width:1120px}
.timeline li{position:relative;padding:9px 0 9px 26px;border-left:1px solid var(--line);margin-left:8px;font-size:15.5px;color:#c7d5ea}
.timeline li::before{content:"";position:absolute;left:-6px;top:17px;width:11px;height:11px;border-radius:50%;
  background:radial-gradient(circle,var(--cyan),var(--blue));box-shadow:0 0 12px rgba(34,211,238,.6)}

/* 资质荣誉 */
.honor-block{margin-bottom:20px;max-width:940px}
.honor-block h4{color:#dbe7fb;margin-bottom:10px;font-size:15.5px;font-weight:700}
.tags{display:flex;flex-wrap:wrap;gap:9px}
.tags span{background:rgba(255,255,255,.035);border:1px solid var(--line);color:#bccbe2;
  padding:6px 13px;border-radius:999px;font-size:13px;transition:.2s}
.tags span:hover{border-color:var(--line-2);color:var(--cyan)}

/* ---------------- AI 技术与方案 三支柱 ---------------- */
.pillar{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:6px 0 8px}
.pillar-item{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px;overflow:hidden;transition:.2s}
.pillar-item:hover{border-color:var(--line-2);box-shadow:0 12px 34px rgba(6,10,22,.5)}
.pillar-item span{display:inline-flex;font-family:var(--font-mono);font-size:15px;font-weight:700;color:var(--cyan);
  width:34px;height:34px;align-items:center;justify-content:center;border:1px solid var(--line-2);border-radius:10px;background:rgba(34,211,238,.08)}
.pillar-item h4{color:var(--head);margin:12px 0 6px;font-size:16px}
.pillar-item p{font-size:15px;color:#a9bbd6}
/* 三支柱局部色彩区分：青 / 蓝 / 紫 */
.pillar-item:nth-child(1) span{color:var(--cyan);border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.09);box-shadow:0 0 14px rgba(34,211,238,.25)}
.pillar-item:nth-child(2) span{color:#60A5FA;border-color:rgba(96,165,250,.4);background:rgba(96,165,250,.09);box-shadow:0 0 14px rgba(96,165,250,.25)}
.pillar-item:nth-child(3) span{color:var(--violet);border-color:rgba(139,92,246,.42);background:rgba(139,92,246,.10);box-shadow:0 0 14px rgba(139,92,246,.28)}
.pillar-item:nth-child(2){border-top:2px solid rgba(96,165,250,.35)}
.pillar-item:nth-child(3){border-top:2px solid rgba(139,92,246,.38)}
.pillar-item:nth-child(1){border-top:2px solid rgba(34,211,238,.38)}

/* ---------------- 授课风格（图文双栏） ---------------- */
.style-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;margin-top:6px}
.style-photo{position:relative;border-radius:18px;overflow:hidden;border:1px solid var(--line-2);
  box-shadow:0 22px 60px rgba(4,8,18,.65),0 0 0 1px rgba(34,211,238,.10) inset}
.style-photo img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block}
.style-photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:12px 16px;font-size:12.5px;
  font-family:var(--font-mono);letter-spacing:1.5px;color:#cfe0f7;
  background:linear-gradient(180deg,transparent,rgba(7,11,22,.85))}
.style-photo::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:var(--grad);z-index:1}

/* ---------------- AI 咨询与陪跑 ---------------- */
.more-line{margin:18px 0 6px;font-size:13.5px;color:var(--muted);font-family:var(--font-mono);letter-spacing:.5px}
.consult-featured{position:relative;margin:6px 0 20px;padding:24px 26px;border-radius:var(--radius);
  background:linear-gradient(135deg,rgba(34,211,238,.10),rgba(59,130,246,.08) 55%,rgba(139,92,246,.10));
  border:1px solid var(--line-2);overflow:hidden;transition:.25s}
.consult-featured::before{content:"";position:absolute;inset:0 0 auto 0;height:2px;background:var(--grad)}
.consult-featured:hover{box-shadow:0 16px 44px rgba(6,10,22,.55),0 0 0 1px rgba(34,211,238,.18) inset}
.consult-featured h3{font-size:17px;color:var(--head);margin:10px 0 8px}
.consult-featured p{font-size:15.5px;color:#c6d4ea;max-width:none}
.svc-price{display:block;font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--cyan);
  letter-spacing:.4px;margin-bottom:6px}
.rules-line{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.rules-line span{font-size:13.5px;color:#9fe8f5;background:rgba(34,211,238,.07);border:1px solid rgba(34,211,238,.22);
  padding:8px 16px;border-radius:999px;font-weight:600}
.consult-duo{grid-template-columns:repeat(2,1fr)}

/* ---------------- 授课照片轮播 ---------------- */
.carousel{position:relative;width:100%;aspect-ratio:16/9;border-radius:20px;overflow:hidden;
  border:1px solid var(--line-2);background:#060a14;
  box-shadow:0 24px 70px rgba(4,8,18,.7),0 0 0 1px rgba(34,211,238,.10) inset}
.carousel-track{position:absolute;inset:0}
.carousel-slide{position:absolute;inset:0;opacity:0;transition:opacity .9s ease;will-change:opacity}
.carousel-slide.active{opacity:1}
.carousel-slide img{width:100%;height:100%;object-fit:cover;display:block}
.carousel::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,22,.05) 42%,rgba(7,11,22,.58) 100%)}
.carousel-btn{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line-2);background:rgba(7,11,22,.55);color:#eaf4ff;font-size:26px;cursor:pointer;
  backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;transition:.2s;line-height:1}
.carousel-btn:hover{background:rgba(34,211,238,.22);border-color:var(--cyan)}
.carousel-btn.prev{left:16px}
.carousel-btn.next{right:16px}
.carousel-dots{position:absolute;left:0;right:0;bottom:16px;z-index:3;display:flex;gap:8px;justify-content:center;flex-wrap:wrap;padding:0 16px}
.carousel-dots .dot{width:8px;height:8px;border-radius:50%;border:none;background:rgba(255,255,255,.32);cursor:pointer;transition:.2s;padding:0}
.carousel-dots .dot.active{background:var(--cyan);width:22px;border-radius:5px;box-shadow:0 0 10px rgba(34,211,238,.7)}

/* ---------------- 联系留资 ---------------- */
.contact-wrap{display:grid;grid-template-columns:1.35fr 1fr;gap:32px;align-items:start}
.lead-form{display:grid;gap:15px;max-width:540px}
.lead-form label{display:grid;gap:7px;font-size:13.5px;color:#c2d1e7;font-weight:600}
.lead-form input,.lead-form select,.lead-form textarea{font:inherit;padding:12px 14px;border:1px solid var(--line);
  border-radius:10px;background:rgba(8,13,26,.7);color:var(--text);transition:.2s;outline:none}
.lead-form input::placeholder,.lead-form textarea::placeholder{color:#6d7f9c}
.lead-form input:focus,.lead-form select:focus,.lead-form textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.15)}
.contact-qr{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px;text-align:center}
.contact-qr h3{color:var(--head);font-size:17px;margin-bottom:6px}
.qr-img{width:210px;height:210px;object-fit:contain;border:1px solid var(--line);border-radius:12px;margin:14px auto;
  background:#fff;padding:6px}
.qr-tip{font-size:12px;color:var(--muted);margin-top:8px}
.lead-msg{font-size:14px;min-height:20px}
.lead-msg.ok{color:#4ade80}
.lead-msg.err{color:#f87171}
.muted{color:var(--muted)}

/* ---------------- 页脚 ---------------- */
.site-footer{position:relative;border-top:1px solid var(--line);background:rgba(6,10,20,.7);padding:34px 0;text-align:center;font-size:13px;color:#9fb2cd}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:var(--grad);opacity:.6}
.site-footer .muted{color:#7d8fae;margin-top:8px}

/* ---------------- 后台 ---------------- */
.admin-body{background:radial-gradient(900px 500px at 80% -10%,rgba(59,130,246,.16),transparent 60%),#070B16;
  font-family:var(--font-sans);color:var(--text);min-height:100vh}
.admin-bar{background:rgba(7,11,22,.8);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);
  padding:14px 22px;display:flex;justify-content:space-between;align-items:center;color:var(--head)}
.admin-bar a{color:var(--cyan)}
.admin-main{max-width:1160px;margin:24px auto;padding:0 22px}
.admin-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:22px;margin-bottom:22px}
.admin-card h3{color:var(--head);margin-bottom:14px;font-size:18px}
.admin-table{width:100%;border-collapse:collapse;font-size:13px}
.admin-table th,.admin-table td{border:1px solid var(--line);padding:9px;text-align:left;vertical-align:top;color:#c6d4e8}
.admin-table th{background:rgba(34,211,238,.07);color:#dbe7fb}
.admin-form{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));align-items:end}
.admin-form input,.admin-form select,.admin-form textarea{padding:9px;border:1px solid var(--line);border-radius:8px;
  font:inherit;width:100%;background:rgba(8,13,26,.7);color:var(--text)}
.admin-form label{display:grid;gap:5px;font-size:12px;color:#a9bbd6}
.admin-btn{background:var(--grad);color:#04121f;border:none;padding:8px 14px;border-radius:8px;cursor:pointer;font-size:13px;font-weight:700}
.admin-btn.danger{background:linear-gradient(120deg,#f43f5e,#b91c1c);color:#fff}
.admin-btn:hover{filter:brightness(1.08)}
.login-wrap{max-width:380px;margin:90px auto;background:var(--panel);padding:32px;border-radius:18px;border:1px solid var(--line);
  box-shadow:0 24px 70px rgba(4,8,18,.6)}
.login-wrap h2{color:var(--head);margin-bottom:18px}
.login-wrap input{width:100%;padding:12px;margin-bottom:14px;border:1px solid var(--line);border-radius:10px;
  background:rgba(8,13,26,.7);color:var(--text);outline:none}
.login-wrap input:focus{border-color:var(--cyan)}
.login-wrap .err{color:#f87171;font-size:13px;margin-bottom:12px}

/* ---------------- 响应式 ---------------- */
@media (max-width:860px){
  .nav-toggle{display:flex}
  .nav-links{display:none;position:absolute;top:66px;left:0;right:0;background:rgba(7,11,22,.98);
    border-bottom:1px solid var(--line);flex-direction:column;padding:16px 24px;gap:14px;align-items:flex-start}
  .nav-links.open{display:flex}
  .hero{padding:74px 0 66px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-photo{justify-self:center;width:min(300px,78%)}
  .section{padding:60px 0}
  .contact-wrap{grid-template-columns:1fr}
  .pillar{grid-template-columns:1fr}
  .consult-duo{grid-template-columns:1fr}
  .style-grid{grid-template-columns:1fr;gap:24px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .carousel{aspect-ratio:4/3}
  .admin-form{grid-template-columns:1fr}
  .intro-text{font-size:15px}
}
@media (max-width:480px){
  .container{padding:0 18px}
  .carousel-btn{width:38px;height:38px;font-size:22px}
  .carousel-dots{bottom:10px}
  .section-title{font-size:21px}
}