/* ═══════════════════════════════════════════════════════════
   门户网站建设 · 高端重构版  (前缀 mh-)
   设计语言：深空蓝 + 电光蓝→青 渐变 + 暖金点缀 · 玻璃拟态 · 全屏
   ═══════════════════════════════════════════════════════════ */

.mh-page{
    --mh-navy:#081533;
    --mh-navy-2:#0d2350;
    --mh-blue:#2563eb;
    --mh-blue-2:#3b82f6;
    --mh-cyan:#22d3ee;
    --mh-gold:#e7b64d;
    --mh-ink:#0f1c33;
    --mh-muted:#5c6b86;
    --mh-bg:#ffffff;
    --mh-soft:#f3f7fd;
    --mh-line:#e5ecf6;
    --mh-card:#ffffff;
    --mh-grad:linear-gradient(120deg,#2563eb 0%,#22d3ee 100%);
    --mh-grad-soft:linear-gradient(120deg,#3b82f6 0%,#38bdf8 100%);
    --mh-grad-gold:linear-gradient(120deg,#e7b64d,#f0cf86);
    --mh-shadow:0 18px 44px rgba(20,50,110,.10);
    --mh-shadow-lg:0 30px 70px rgba(20,50,110,.18);
    background:var(--mh-bg);
    color:var(--mh-ink);
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
    -webkit-font-smoothing:antialiased;
}
.mh-page *{box-sizing:border-box;}
.mh-page .wrap{width:100%;margin:0 auto;padding:0 48px;}
@media(max-width:768px){.mh-page .wrap{padding:0 20px;}}

/* ═══ 通用区块 ═══ */
.mh-sec{padding:110px 0;position:relative;}
.mh-sec.soft{background:var(--mh-soft);}
.mh-sec.dark{background:radial-gradient(1200px 600px at 20% 0%,#12295c 0,transparent 60%),radial-gradient(1000px 500px at 90% 100%,#0b1c44 0,transparent 55%),var(--mh-navy);color:#eaf1ff;}
@media(max-width:768px){.mh-sec{padding:64px 0;}}

/* 区块标题 */
.mh-head{max-width:820px;margin:0 auto 60px;text-align:center;}
.mh-eyebrow{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-size:13px;font-weight:800;letter-spacing:3px;text-transform:uppercase;color:var(--mh-blue);margin-bottom:16px;}
.mh-eyebrow::before,.mh-eyebrow::after{content:'';width:26px;height:2px;background:var(--mh-grad);border-radius:2px;}
.mh-head.light .mh-eyebrow{color:var(--mh-cyan);}
.mh-head h2{font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.2;margin:0;letter-spacing:-.5px;}
.mh-head.light h2{color:#fff;}
.mh-head h2 .hl{background:var(--mh-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;}
.mh-head p{margin:18px auto 0;max-width:680px;font-size:16px;line-height:1.85;color:var(--mh-muted);}
.mh-head.light p{color:rgba(224,234,255,.72);}

/* 按钮 */
.mh-btn{display:inline-flex;align-items:center;gap:10px;padding:15px 32px;border-radius:999px;font-size:15.5px;font-weight:700;text-decoration:none;cursor:pointer;border:none;transition:.35s cubic-bezier(.2,.7,.2,1);}
.mh-btn i{transition:transform .35s;}
.mh-btn-primary{background:var(--mh-grad);color:#fff;box-shadow:0 16px 34px rgba(37,99,235,.35);}
.mh-btn-primary:hover{transform:translateY(-3px);box-shadow:0 22px 44px rgba(37,99,235,.45);}
.mh-btn-primary:hover i{transform:translateX(5px);}
.mh-btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.32);backdrop-filter:blur(6px);}
.mh-btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-3px);}
.mh-btn-light{background:#fff;color:var(--mh-blue);box-shadow:var(--mh-shadow);}
.mh-btn-light:hover{transform:translateY(-3px);box-shadow:var(--mh-shadow-lg);}

/* ═══════════════ HERO · 全屏 ═══════════════ */
.mh-hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;
    background:linear-gradient(135deg,#06122e 0%,#0c2050 46%,#143069 100%);}
.mh-hero-bg{position:absolute;inset:0;overflow:hidden;}
.mh-orb{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;animation:mhFloat 16s ease-in-out infinite;}
.mh-orb.o1{width:520px;height:520px;top:-140px;right:-80px;background:radial-gradient(circle,#2563eb,transparent 68%);}
.mh-orb.o2{width:440px;height:440px;bottom:-160px;left:-100px;background:radial-gradient(circle,#22d3ee,transparent 68%);animation-delay:-5s;}
.mh-orb.o3{width:320px;height:320px;top:40%;left:44%;background:radial-gradient(circle,#7c3aed,transparent 70%);opacity:.4;animation-delay:-9s;}
@keyframes mhFloat{0%,100%{transform:translate(0,0) scale(1);}50%{transform:translate(30px,-40px) scale(1.08);}}
.mh-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 30%,transparent 78%);-webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 30%,transparent 78%);}
.mh-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;padding:120px 0 100px;}
@media(max-width:960px){.mh-hero-inner{grid-template-columns:1fr;gap:44px;padding:130px 0 90px;text-align:center;}}

.mh-hero-badge{display:inline-flex;align-items:center;gap:9px;padding:8px 18px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);color:#cfe0ff;font-size:13.5px;font-weight:600;backdrop-filter:blur(8px);margin-bottom:26px;}
.mh-hero-badge i{color:var(--mh-cyan);}
.mh-hero h1{font-size:clamp(36px,5vw,62px);font-weight:900;line-height:1.1;color:#fff;margin:0 0 22px;letter-spacing:-1px;}
.mh-hero h1 .hl{background:linear-gradient(120deg,#60a5fa,#22d3ee 60%,#a78bfa);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;}
.mh-hero-desc{font-size:18px;line-height:1.8;color:rgba(214,226,250,.86);margin:0 0 16px;max-width:560px;}
@media(max-width:960px){.mh-hero-desc{margin-left:auto;margin-right:auto;}}
.mh-hero-sub{font-size:15px;line-height:1.85;color:rgba(180,197,232,.7);margin:0 0 32px;max-width:560px;}
@media(max-width:960px){.mh-hero-sub{margin-left:auto;margin-right:auto;}}
.mh-hero-feats{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px;}
@media(max-width:960px){.mh-hero-feats{justify-content:center;}}
.mh-hero-feat{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);color:#dbe7ff;font-size:13.5px;font-weight:600;}
.mh-hero-feat i{color:var(--mh-cyan);}
.mh-hero-actions{display:flex;flex-wrap:wrap;gap:16px;}
@media(max-width:960px){.mh-hero-actions{justify-content:center;}}

/* Hero 视觉：玻璃面板 */
.mh-hero-visual{position:relative;}
.mh-glass{position:relative;background:linear-gradient(160deg,rgba(255,255,255,.12),rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.18);border-radius:24px;padding:26px;backdrop-filter:blur(16px);box-shadow:0 40px 80px rgba(0,0,0,.35);}
.mh-glass-top{display:flex;align-items:center;gap:8px;margin-bottom:22px;}
.mh-glass-top .d{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.3);}
.mh-glass-top .d:nth-child(1){background:#ff6b6b;}
.mh-glass-top .d:nth-child(2){background:#ffd166;}
.mh-glass-top .d:nth-child(3){background:#06d6a0;}
.mh-glass-top b{margin-left:8px;color:#cfe0ff;font-size:13px;font-weight:600;letter-spacing:.5px;}
.mh-glass-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:20px;}
.mh-gs{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:16px 12px;text-align:center;}
.mh-gs b{display:block;font-size:26px;font-weight:900;background:linear-gradient(120deg,#60a5fa,#22d3ee);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1;}
.mh-gs span{display:block;margin-top:7px;font-size:12.5px;color:rgba(200,214,244,.75);}
.mh-glass-row{display:flex;align-items:center;gap:12px;padding:13px 14px;border-radius:12px;background:rgba(255,255,255,.05);margin-top:10px;}
.mh-glass-row i{width:34px;height:34px;flex:none;border-radius:9px;display:flex;align-items:center;justify-content:center;background:var(--mh-grad);color:#fff;font-size:14px;}
.mh-glass-row span{font-size:13.5px;color:#dbe7ff;}

.mh-scroll{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;color:rgba(255,255,255,.7);font-size:22px;animation:mhBounce 2s infinite;text-decoration:none;}
@keyframes mhBounce{0%,100%{transform:translate(-50%,0);}50%{transform:translate(-50%,10px);}}

/* ═══════════════ 服务类型标签 ═══════════════ */
.mh-tags{background:var(--mh-card);border-bottom:1px solid var(--mh-line);padding:22px 0;position:sticky;top:0;z-index:20;box-shadow:0 6px 20px rgba(20,50,110,.05);}
.mh-tags-row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;}
.mh-tag{display:inline-flex;align-items:center;padding:10px 22px;border-radius:999px;font-size:14.5px;font-weight:600;color:var(--mh-ink);background:var(--mh-soft);border:1px solid var(--mh-line);text-decoration:none;transition:.3s cubic-bezier(.2,.7,.2,1);}
.mh-tag:hover{color:var(--mh-blue);border-color:rgba(37,99,235,.4);transform:translateY(-2px);box-shadow:var(--mh-shadow);}
.mh-tag.active{color:#fff;background:var(--mh-grad);border-color:transparent;box-shadow:0 12px 26px rgba(37,99,235,.32);}

/* ═══════════════ 为什么选择我们 ═══════════════ */
.mh-why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;}
@media(max-width:1100px){.mh-why-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.mh-why-grid{grid-template-columns:1fr;}}
.mh-why-card{position:relative;background:var(--mh-card);border:1px solid var(--mh-line);border-radius:20px;padding:26px 26px;overflow:hidden;display:flex;align-items:flex-start;gap:20px;transition:.4s cubic-bezier(.2,.7,.2,1);}
.mh-why-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--mh-grad);transform:scaleX(0);transform-origin:left;transition:.4s;}
.mh-why-card:hover{transform:translateY(-10px);box-shadow:var(--mh-shadow-lg);border-color:transparent;}
.mh-why-card:hover::before{transform:scaleX(1);}
.mh-why-ico{flex:0 0 auto;width:62px;height:62px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:26px;color:#fff;background:var(--mh-grad-soft);box-shadow:0 14px 30px rgba(37,99,235,.28);}
.mh-why-body{flex:1 1 auto;min-width:0;}
.mh-why-card h3{font-size:18px;font-weight:800;margin:2px 0 10px;color:var(--mh-ink);}
.mh-why-card p{font-size:13.5px;line-height:1.75;color:var(--mh-muted);margin:0;}
@media(max-width:560px){.mh-why-card{flex-direction:column;gap:14px;align-items:center;text-align:center;}.mh-why-ico{margin:0;}.mh-why-body{width:100%;}}

/* ═══════════════ 我们的服务 ═══════════════ */
.mh-serv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;}
@media(max-width:1100px){.mh-serv-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.mh-serv-grid{grid-template-columns:1fr;}}
.mh-serv-card{background:var(--mh-card);border:1px solid var(--mh-line);border-radius:20px;overflow:hidden;transition:.4s cubic-bezier(.2,.7,.2,1);display:flex;flex-direction:column;}
.mh-serv-card:hover{transform:translateY(-10px);box-shadow:var(--mh-shadow-lg);border-color:transparent;}
.mh-serv-top{display:flex;align-items:center;gap:14px;padding:24px 24px 0;}
.mh-serv-ico{width:54px;height:54px;border-radius:15px;flex:none;display:flex;align-items:center;justify-content:center;font-size:23px;color:#fff;background:var(--mh-grad);box-shadow:0 14px 28px rgba(37,99,235,.30);transition:.4s cubic-bezier(.2,.7,.2,1);}
.mh-serv-card:hover .mh-serv-ico{transform:translateY(-4px) rotate(-4deg);box-shadow:0 20px 38px rgba(37,99,235,.42);}
.mh-serv-badge{padding:7px 15px;border-radius:999px;background:var(--mh-soft);color:var(--mh-blue);font-size:12.5px;font-weight:800;border:1px solid var(--mh-line);}
.mh-serv-body{padding:18px 24px 26px;flex:1;display:flex;flex-direction:column;}
.mh-serv-body h3{font-size:19px;font-weight:800;margin:0 0 10px;color:var(--mh-ink);}
.mh-serv-body>p{font-size:13.5px;line-height:1.75;color:var(--mh-muted);margin:0 0 16px;}
.mh-serv-list{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:10px;}
.mh-serv-list li{position:relative;padding-left:26px;font-size:13.5px;line-height:1.6;color:#455270;}
.mh-serv-list li::before{content:'';position:absolute;left:6px;top:5px;width:5px;height:9px;border:solid var(--mh-cyan);border-width:0 2px 2px 0;transform:rotate(45deg);border-radius:1px;}
.mh-serv-link{margin-top:auto;align-self:flex-start;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--mh-blue);text-decoration:none;transition:.3s;}
.mh-serv-link i{transition:transform .3s;}
.mh-serv-link:hover{gap:12px;}
.mh-serv-link:hover i{transform:translateX(4px);}

/* ═══════════════ 建站流程 ═══════════════ */
.mh-flow{display:grid;grid-template-columns:repeat(7,1fr);gap:18px;position:relative;}
@media(max-width:1100px){.mh-flow{grid-template-columns:repeat(4,1fr);gap:24px 18px;}}
@media(max-width:680px){.mh-flow{grid-template-columns:repeat(2,1fr);}}
.mh-step{position:relative;text-align:center;padding:14px 10px;}
.mh-step-no{width:66px;height:66px;margin:0 auto 18px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:900;color:#fff;background:var(--mh-grad);box-shadow:0 14px 30px rgba(37,99,235,.3);position:relative;z-index:2;transition:.4s;}
.mh-step:hover .mh-step-no{transform:translateY(-6px) scale(1.06);}
.mh-step h4{font-size:16px;font-weight:800;margin:0 0 8px;color:var(--mh-ink);}
.mh-step p{font-size:13px;line-height:1.6;color:var(--mh-muted);margin:0;}

/* ═══════════════ 技术优势（深色） ═══════════════ */
.mh-tech-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
@media(max-width:1100px){.mh-tech-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.mh-tech-grid{grid-template-columns:1fr;}}
.mh-tech-card{background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:26px 24px;transition:.4s cubic-bezier(.2,.7,.2,1);}
.mh-tech-card:hover{transform:translateY(-8px);border-color:rgba(34,211,238,.4);box-shadow:0 26px 54px rgba(0,0,0,.3);}
.mh-tech-card h4{display:flex;align-items:center;gap:12px;font-size:16.5px;font-weight:800;color:#fff;margin:0 0 12px;}
.mh-tech-card h4 i{width:40px;height:40px;flex:none;border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:16px;background:var(--mh-grad);color:#fff;}
.mh-tech-card p{font-size:13.5px;line-height:1.8;color:rgba(206,220,248,.78);margin:0;}

/* ═══════════════ 成功案例 ═══════════════ */
/* 案例 logo 墙：与首页 #case 板块一致（灰度悬停变彩） */
.mh-sec .case-logo img{filter:grayscale(60%);opacity:.75;}
.mh-sec .case-logo:hover img{filter:grayscale(0%);opacity:1;}

/* ═══════════════ 价格套餐 ═══════════════ */
.mh-price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:stretch;}
@media(max-width:1100px){.mh-price-grid{grid-template-columns:repeat(2,1fr);}}
@media(max-width:560px){.mh-price-grid{grid-template-columns:1fr;}}
.mh-price{position:relative;background:var(--mh-card);border:1px solid var(--mh-line);border-radius:22px;padding:38px 28px 34px;text-align:center;transition:.4s cubic-bezier(.2,.7,.2,1);display:flex;flex-direction:column;}
.mh-price:hover{transform:translateY(-10px);box-shadow:var(--mh-shadow-lg);}
.mh-price.hot{border-color:transparent;background:linear-gradient(160deg,#0d2350,#123063);color:#fff;box-shadow:0 30px 66px rgba(20,50,110,.3);}
.mh-price-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);padding:6px 20px;border-radius:999px;background:var(--mh-grad-gold);color:#3a2b06;font-size:12.5px;font-weight:800;box-shadow:0 8px 18px rgba(231,182,77,.4);}
.mh-price h3{font-size:20px;font-weight:800;margin:0 0 14px;}
.mh-price.hot h3{color:#fff;}
.mh-price-num{font-size:38px;font-weight:900;line-height:1;background:var(--mh-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.mh-price.hot .mh-price-num{background:linear-gradient(120deg,#60a5fa,#22d3ee);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.mh-price-num span{font-size:15px;font-weight:600;color:var(--mh-muted);-webkit-text-fill-color:var(--mh-muted);}
.mh-price.hot .mh-price-num span{color:rgba(206,220,248,.7);-webkit-text-fill-color:rgba(206,220,248,.7);}
.mh-price-desc{font-size:13.5px;color:var(--mh-muted);margin:12px 0 22px;}
.mh-price.hot .mh-price-desc{color:rgba(206,220,248,.72);}
.mh-price-feats{list-style:none;margin:0 0 26px;padding:0;display:grid;gap:12px;text-align:left;}
.mh-price-feats li{position:relative;padding-left:26px;font-size:14px;color:#455270;}
.mh-price.hot .mh-price-feats li{color:rgba(224,234,255,.85);}
.mh-price-feats li::before{content:'';position:absolute;left:6px;top:5px;width:5px;height:9px;border:solid var(--mh-cyan);border-width:0 2px 2px 0;transform:rotate(45deg);border-radius:1px;}
.mh-price .mh-btn{margin-top:auto;width:100%;justify-content:center;}

/* ═══════════════ 常见问题 ═══════════════ */
.mh-faq{max-width:920px;margin:0 auto;display:grid;gap:14px;}
.mh-faq-item{background:var(--mh-card);border:1px solid var(--mh-line);border-radius:16px;overflow:hidden;transition:.3s;}
.mh-faq-item[open]{box-shadow:var(--mh-shadow);border-color:rgba(37,99,235,.28);}
.mh-faq-item summary{list-style:none;cursor:pointer;padding:22px 26px;font-size:16px;font-weight:700;color:var(--mh-ink);display:flex;align-items:center;justify-content:space-between;gap:16px;}
.mh-faq-item summary::-webkit-details-marker{display:none;}
.mh-faq-item summary i{color:var(--mh-blue);transition:transform .3s;flex:none;}
.mh-faq-item[open] summary i{transform:rotate(180deg);}
.mh-faq-a{padding:0 26px 24px;font-size:14.5px;line-height:1.85;color:var(--mh-muted);}

/* ═══════════════ CTA ═══════════════ */
.mh-cta{position:relative;overflow:hidden;padding:96px 0;background:linear-gradient(120deg,#0c2050,#123063 55%,#1e50ff);text-align:center;}
.mh-cta .mh-orb{opacity:.4;}
.mh-cta-inner{position:relative;z-index:2;max-width:760px;margin:0 auto;padding:0 20px;}
.mh-cta h2{font-size:clamp(26px,3.4vw,40px);font-weight:900;color:#fff;margin:0 0 16px;letter-spacing:-.5px;}
.mh-cta h2 .hl{background:linear-gradient(120deg,#7dd3fc,#a78bfa);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.mh-cta p{font-size:16.5px;line-height:1.8;color:rgba(214,226,250,.85);margin:0 0 34px;}
.mh-cta-btns{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;}

/* ═══════════════ 滚动揭示 ═══════════════ */
.mh-reveal{opacity:0;transform:translateY(32px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);}
.mh-reveal.in{opacity:1;transform:none;}