/* ========== 变量 ========== */
:root{
  --pri:#1a56db;--pri-lt:#3b82f6;--accent:#2563eb;--accent2:#60a5fa;
  --bg:#ffffff;--bg2:#f1f5f9;--bg-dark:#0b1a3b;--bg-dark2:#0f2352;
  --card:#ffffff;--card-dark:rgba(15,35,82,.6);
  --txt:#1e293b;--txt-light:#ffffff;--muted:#64748b;--muted-light:rgba(255,255,255,.7);
  --bdr:rgba(226,232,240,.8);--bdr-dark:rgba(59,130,246,.15);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans SC',-apple-system,sans-serif;background:var(--bg);color:var(--txt);line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ========== NAV ========== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(11,26,59,.85);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(59,130,246,.1);padding:10px 0;transition:.4s}
.navbar.scrolled{background:rgba(11,26,59,.95);padding:6px 0}
.nav-container{display:flex;justify-content:space-between;align-items:center}
.logo-link{text-decoration:none}
.logo-box{display:flex;align-items:center}
.logo-img{height:52px;width:auto;display:block}
.nav-links{display:flex;list-style:none;gap:30px;align-items:center}
.nav-links>li{position:relative}
.nav-links>li>a{color:rgba(255,255,255,.75);font-size:.9rem;padding:8px 0;display:inline-flex;align-items:center;gap:4px;transition:.3s;letter-spacing:.5px}
.nav-links>li>a:hover,.nav-links>li>a.active{color:#fff}
.nav-links .fa-chevron-down{font-size:.5rem;transition:.3s;opacity:.6}
.dropdown-menu{position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%);background:rgba(11,26,59,.96);backdrop-filter:blur(20px);border:1px solid rgba(59,130,246,.1);border-radius:12px;padding:8px 0;min-width:240px;opacity:0;visibility:hidden;transition:.3s;box-shadow:0 16px 48px rgba(0,0,0,.3)}
.dropdown:hover .dropdown-menu{opacity:1;visibility:visible}
.dropdown:hover>a .fa-chevron-down{transform:rotate(180deg)}
.dropdown-menu a{display:block;padding:10px 22px;color:rgba(255,255,255,.65);font-size:.84rem;white-space:nowrap;transition:.25s;border-left:2px solid transparent}
.dropdown-menu a:hover{color:#fff;background:rgba(59,130,246,.08);border-left-color:var(--accent2)}
.mobile-toggle{display:none;background:none;border:none;cursor:pointer;padding:4px}
.mobile-toggle span{display:block;width:22px;height:1.5px;background:#fff;margin:5px 0;transition:.3s}

/* ========== 语言切换 ========== */
.lang-switch{display:flex;align-items:center;gap:2px;margin-left:24px;font-size:.85rem}
.lang-opt{cursor:pointer;padding:4px 10px;border-radius:6px;transition:.25s;color:rgba(255,255,255,.5)}
.lang-opt.active{color:#fff;font-weight:600}
.lang-opt:hover{color:#fff}
.lang-sep{color:rgba(255,255,255,.25);font-size:.7rem}

/* ========== HERO 龙虾推广区 ========== */
.hero-promo{position:relative;min-height:36vh;display:flex;align-items:center;overflow:hidden;background:linear-gradient(135deg,#061230 0%,#0b1a3b 40%,#0f2352 100%);padding:68px 0 28px}
.hero-promo .hero-bg{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 600px 400px at 30% 50%,rgba(59,130,246,.08),transparent),radial-gradient(ellipse 400px 300px at 80% 40%,rgba(255,120,50,.04),transparent)}
.hero-promo-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:48px}
.hero-promo-text{flex:1}
.hero-promo-text h2{font-size:2.8rem;font-weight:900;color:#fff;line-height:1.3;letter-spacing:2px;margin-bottom:32px}
.hero-promo-btn{display:inline-block;padding:16px 40px;background:linear-gradient(135deg,#1a56db,#3b82f6);color:#fff;border-radius:60px;font-size:1.05rem;font-weight:500;letter-spacing:1px;transition:.4s;box-shadow:0 4px 24px rgba(26,86,219,.35)}
.hero-promo-btn:hover{transform:translateY(-3px);box-shadow:0 12px 40px rgba(26,86,219,.5)}
.hero-promo-visual{flex:0 0 320px;text-align:center;position:relative}
.lobster-emoji{font-size:8rem;line-height:1;filter:drop-shadow(0 20px 40px rgba(255,100,50,.2));animation:lobsterFloat 3s ease-in-out infinite}
.lobster-sparkles{font-size:2.5rem;margin-top:-20px;opacity:.5;letter-spacing:24px}
@keyframes lobsterFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
@media(max-width:768px){.hero-promo-inner{flex-direction:column;text-align:center}.hero-promo-text h2{font-size:2rem}.hero-promo-visual{flex:none}.lobster-emoji{font-size:8rem}}

/* ========== HERO（下半部分）========== */
.hero{position:relative;min-height:63vh;display:flex;align-items:flex-start;justify-content:center;text-align:center;overflow:hidden;background:linear-gradient(135deg,#061230 0%,#0b1a3b 30%,#122a5c 60%,#1a3a6e 100%);padding-top:40px}
.hero-bg{position:absolute;inset:0;pointer-events:none;background:radial-gradient(ellipse 900px 600px at 70% 40%,rgba(59,130,246,.12),transparent),radial-gradient(ellipse 600px 400px at 30% 60%,rgba(96,165,250,.06),transparent)}
.hero-grid{position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,transparent 49.7%,rgba(59,130,246,.02) 49.7%,rgba(59,130,246,.02) 50.3%,transparent 50.3%),linear-gradient(0deg,transparent 49.7%,rgba(59,130,246,.02) 49.7%,rgba(59,130,246,.02) 50.3%,transparent 50.3%);background-size:100px 100px}
.hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:120px;background:linear-gradient(to top,var(--bg),transparent);pointer-events:none;z-index:1}
.hero-particles{position:absolute;inset:0;pointer-events:none}
.hero-inner{position:relative;z-index:2;max-width:1200px}
.hero h1{font-size:3.2rem;font-weight:900;letter-spacing:4px;margin-bottom:28px;line-height:1.3;color:#fff;animation:fadeUp .8s ease-out}
.hero-tags{margin-bottom:18px;animation:fadeUp .8s ease-out .15s both}
.hero-tag-main{display:inline-flex;align-items:center;gap:10px;padding:12px 32px;background:rgba(59,130,246,.15);border:1px solid rgba(96,165,250,.25);border-radius:60px;color:var(--accent2);font-size:.95rem;font-weight:400;transition:.4s;letter-spacing:1px}
.hero-tag-main:hover{background:rgba(59,130,246,.25);border-color:rgba(96,165,250,.4)}
.hero-certs{color:rgba(255,255,255,.5);font-size:.88rem;animation:fadeUp .8s ease-out .3s both;display:inline-block;transition:.3s;letter-spacing:.5px}
.hero-subtitle{color:rgba(255,255,255,.55);font-size:.92rem;line-height:2;margin-bottom:20px;animation:fadeUp .8s ease-out .25s both;letter-spacing:.5px}
.hero-certs:hover{color:rgba(255,255,255,.8)}

/* ========== SECTION 通用 ========== */
.section{padding:80px 0;position:relative}
.section-light{background:var(--bg)}
.section-gray{background:var(--bg2)}
.section-dark{background:var(--bg-dark);color:var(--txt-light)}
.cert-bg{background:var(--bg2)}
.tweaker-bg{background:var(--bg);color:var(--txt)}
.case-bg{background:#fff;color:var(--txt)}
.alt-bg{background:var(--bg2)}
.section-title{text-align:center;font-size:2rem;font-weight:700;margin-bottom:18px;color:var(--txt);letter-spacing:2px}
.section-dark .section-title{color:#fff}
.case-bg .section-title{color:var(--txt)}
.tweaker-bg .section-title{color:var(--txt)}
.section-desc{text-align:center;color:var(--muted);max-width:800px;margin:0 auto 48px;font-size:.92rem;line-height:2}
.section-dark .section-desc{color:var(--muted-light)}
.case-bg .section-desc{color:var(--muted)}
.tweaker-bg .section-desc{color:var(--muted)}

/* ========== 解决方案卡片（深蓝背景区域）========== */
.sol-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:24px}
.sol-card{display:block;background:var(--card);border:1px solid var(--bdr);border-radius:14px;padding:32px 24px;transition:.35s;position:relative;overflow:hidden;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.sol-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--pri),var(--accent2));opacity:0;transition:.35s}
.sol-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(26,86,219,.1);border-color:rgba(59,130,246,.2)}
.sol-card:hover::before{opacity:1}
.sol-icon{font-size:2rem;color:var(--pri);margin-bottom:16px}
.sol-card h3{font-size:1.05rem;font-weight:600;color:var(--txt);margin-bottom:10px}
.sol-card p{font-size:.84rem;color:var(--muted);line-height:1.8}

/* ========== 合作伙伴 & 认证徽章（浅灰背景）========== */
.partner-section{background:var(--bg2);padding:80px 0}
.partner-grid{display:grid;grid-template-columns:1.2fr 0.8fr 1fr;gap:48px}
.partner-heading{color:var(--pri);font-size:1.1rem;font-weight:600;margin-bottom:24px;text-align:center;letter-spacing:2px}
.badge-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.aws-badge{display:flex;flex-direction:column;align-items:center;gap:10px;padding:16px 8px;background:#fff;border:1px solid var(--bdr);border-radius:12px;transition:.3s;text-align:center;box-shadow:0 1px 4px rgba(0,0,0,.03)}
.aws-badge:hover{border-color:rgba(59,130,246,.3);box-shadow:0 4px 16px rgba(26,86,219,.08);transform:translateY(-2px)}
.badge-hex{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(26,86,219,.08),rgba(96,165,250,.05));border-radius:12px;color:var(--pri);font-size:1rem}
.badge-img{width:34px;height:34px;object-fit:contain}
.aws-badge span{font-size:.72rem;color:var(--muted);line-height:1.4}
.service-grid{grid-template-columns:repeat(3,1fr)}
.svc-badge{display:flex;flex-direction:column;align-items:center;gap:10px;padding:18px 8px;background:#fff;border:1px solid var(--bdr);border-radius:12px;transition:.3s;text-align:center;text-decoration:none;box-shadow:0 1px 4px rgba(0,0,0,.03)}
.svc-badge:hover{border-color:rgba(59,130,246,.3);transform:translateY(-3px);box-shadow:0 8px 24px rgba(26,86,219,.08)}
.svc-badge i{font-size:1.5rem;color:var(--pri)}
.svc-badge span{font-size:.75rem;color:var(--muted);line-height:1.4}

/* ========== 资质认证 ========== */
.cert-images{text-align:center;margin-bottom:32px}
.cert-images:last-child{margin-bottom:0}
.cert-img{max-width:80%;height:auto;display:inline-block;border-radius:12px}

/* ========== 工具三联 ========== */
.tool-trio{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tool-item{display:flex;flex-direction:column;align-items:center;text-align:center;padding:40px 20px;background:#fff;border:1px solid var(--bdr);border-radius:14px;transition:.35s;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.tool-item:hover{border-color:rgba(59,130,246,.2);transform:translateY(-6px);box-shadow:0 12px 36px rgba(26,86,219,.1)}
.tool-icon{font-size:2.6rem;color:var(--pri);margin-bottom:18px}
.tool-item h3{font-size:1rem;font-weight:600;color:var(--txt)}

/* ========== 特性行（深蓝背景区域）========== */
.feat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feat-card{background:var(--card-dark);border:1px solid var(--bdr-dark);border-radius:14px;padding:32px 24px;text-align:center;transition:.35s;backdrop-filter:blur(12px)}
.tweaker-bg .feat-card{background:#fff;border-color:var(--bdr)}
.tweaker-bg .feat-card:hover{border-color:rgba(59,130,246,.2);box-shadow:0 12px 36px rgba(26,86,219,.1)}
.tweaker-bg .feat-card h4{color:var(--txt)}
.tweaker-bg .feat-card p{color:var(--muted)}
.tweaker-bg .feat-num{color:var(--pri)}
.feat-card:hover{transform:translateY(-6px);box-shadow:0 12px 36px rgba(0,0,0,.2);border-color:rgba(96,165,250,.2)}
.feat-num{font-size:2rem;font-weight:800;color:var(--accent2);margin-bottom:14px;opacity:.7}
.feat-card h4{font-size:1.05rem;font-weight:600;color:#fff;margin-bottom:12px}
.feat-card p{font-size:.84rem;color:var(--muted-light);line-height:1.8}

/* ========== 客户Logo横条 ========== */
.client-logos{display:flex;justify-content:center;align-items:center;gap:48px;flex-wrap:wrap;margin-bottom:56px;padding:28px 0;background:var(--bg2);border-radius:14px;border:1px solid var(--bdr)}
.client-logos img{height:36px;width:auto;opacity:.85;filter:none;transition:.4s}
.client-logos img:hover{opacity:1;transform:scale(1.05)}

/* ========== 客户案例轮播 ========== */
.case-slider{position:relative;overflow:hidden}
.case-track{display:flex;transition:transform .6s cubic-bezier(.4,0,.2,1)}
.case-slide{min-width:100%;padding:0 40px;box-sizing:border-box}
.case-quote{background:var(--bg2);border:1px solid var(--bdr);border-radius:14px;padding:36px 32px;margin-bottom:24px}
.case-quote blockquote{font-size:.92rem;color:var(--muted);line-height:2;border-left:3px solid var(--pri);padding-left:24px;margin:0;font-style:normal}
.case-meta{text-align:center}
.case-meta h4{font-size:1.1rem;font-weight:600;color:var(--txt);margin-bottom:10px}
.case-tag{display:inline-block;padding:5px 16px;background:rgba(26,86,219,.06);border:1px solid rgba(26,86,219,.15);border-radius:20px;font-size:.78rem;color:var(--pri)}
.case-dots{display:flex;justify-content:center;gap:12px;margin-top:28px}
.case-dots .dot{width:8px;height:8px;border-radius:50%;background:rgba(26,86,219,.2);cursor:pointer;transition:.35s}
.case-dots .dot.active{background:var(--pri);box-shadow:0 0 12px rgba(26,86,219,.4);width:24px;border-radius:4px}

/* ========== 子页面 Hero ========== */
.sub-hero{padding:160px 0 90px;text-align:center;background:linear-gradient(135deg,#061230,#0b1a3b,#122a5c);position:relative;color:#fff}
.sub-hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:80px;background:linear-gradient(to top,var(--bg),transparent);pointer-events:none}
.sub-hero h1{font-size:2.6rem;font-weight:800;margin-bottom:20px;color:#fff;letter-spacing:3px}
.sub-hero p{color:rgba(255,255,255,.65);font-size:.95rem;line-height:2;max-width:720px;margin:0 auto 24px}

/* ========== 子页面通用 ========== */
.card-grid{display:grid;gap:24px}
.three-col{grid-template-columns:repeat(3,1fr)}
.two-col{grid-template-columns:repeat(2,1fr)}
.info-card{background:#fff;border:1px solid var(--bdr);border-radius:14px;padding:32px 24px;transition:.35s;display:block;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.info-card:hover{border-color:rgba(59,130,246,.2);transform:translateY(-6px);box-shadow:0 12px 36px rgba(26,86,219,.1)}
.info-icon{font-size:2rem;color:var(--pri);margin-bottom:16px}
.info-card h3{font-size:1.05rem;font-weight:600;color:var(--txt);margin-bottom:10px}
.info-card p{font-size:.84rem;color:var(--muted);line-height:1.8}
.btn-primary{display:inline-block;padding:14px 40px;background:linear-gradient(135deg,var(--pri),var(--accent2));color:#fff;border-radius:60px;font-weight:500;font-size:.95rem;transition:.4s;box-shadow:0 4px 20px rgba(26,86,219,.25);letter-spacing:1px}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 36px rgba(26,86,219,.35)}
.btn-outline{display:inline-flex;align-items:center;gap:8px;padding:14px 36px;border:1px solid rgba(26,86,219,.3);border-radius:60px;color:var(--pri);font-size:.9rem;transition:.35s}
.btn-outline:hover{border-color:var(--pri);background:rgba(26,86,219,.04)}

/* 统计行 */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.four-col{grid-template-columns:repeat(4,1fr)}
.stat-item{display:flex;flex-direction:column;align-items:center;padding:36px 16px;background:#fff;border:1px solid var(--bdr);border-radius:14px;transition:.35s;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.stat-item:hover{border-color:rgba(59,130,246,.2);box-shadow:0 8px 24px rgba(26,86,219,.08)}
.stat-num{font-size:2.8rem;font-weight:800;color:var(--pri);margin-bottom:8px}
.stat-label{font-size:.85rem;color:var(--muted);text-align:center}

/* 图文分栏 */
.split-block{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split-block.reverse .split-text{order:2}
.split-block.reverse .split-img{order:1}
.split-desc{color:var(--muted);font-size:.92rem;line-height:1.9;margin-bottom:14px}
.split-img img{width:100%;border-radius:14px;border:1px solid var(--bdr)}

/* 勾选列表 */
.check-list{list-style:none;padding:0;margin-top:16px}
.check-list li{color:var(--muted);font-size:.88rem;line-height:2.2;display:flex;align-items:flex-start;gap:12px}
.check-list li i{color:var(--pri);margin-top:7px;font-size:.7rem}

/* feature-row 子页面复用 */
.feature-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-item{background:#fff;border:1px solid var(--bdr);border-radius:14px;padding:32px 22px;text-align:center;transition:.35s;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.feature-item:hover{border-color:rgba(59,130,246,.2);transform:translateY(-6px);box-shadow:0 12px 36px rgba(26,86,219,.1)}
.feature-num{font-size:2rem;font-weight:800;color:var(--pri);margin-bottom:14px;opacity:.6}
.feature-item h4{font-size:1.05rem;font-weight:600;color:var(--txt);margin-bottom:12px}
.feature-item p{font-size:.84rem;color:var(--muted);line-height:1.8}

/* ========== 页脚（深蓝背景）========== */
.footer{padding:60px 0 28px;background:var(--bg-dark);border-top:none;color:var(--txt-light)}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1.2fr 1.2fr;gap:36px;margin-bottom:36px}
.footer-brand p{color:var(--muted-light);font-size:.82rem;margin-top:10px}
.footer-qr{margin-top:18px}
.qr-img{width:120px;height:120px;border-radius:8px;display:block;margin-bottom:8px}
.footer-qr span{font-size:.78rem;color:var(--muted-light)}
.footer-col h4{color:var(--accent2);font-size:.88rem;font-weight:600;margin-bottom:16px;letter-spacing:1px}
.footer-col a{display:block;color:var(--muted-light);font-size:.82rem;margin-bottom:10px;transition:.3s}
.footer-col a:hover{color:#fff}
.contact-item{margin-bottom:14px}
.contact-item strong{display:block;color:#fff;font-size:.84rem;margin-bottom:4px}
.contact-item span{display:block;color:var(--muted-light);font-size:.78rem;line-height:1.7}
.contact-item i{color:var(--accent2);margin-right:6px;font-size:.7rem}
.footer-bottom{display:flex;justify-content:center;align-items:center;gap:24px;padding-top:24px;border-top:1px solid rgba(59,130,246,.1);font-size:.78rem;color:rgba(255,255,255,.4);flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.4);transition:.3s}
.footer-bottom a:hover{color:#fff}

/* ========== 辅助类 ========== */
.text-center{text-align:center}
.blog-date{color:var(--muted);font-size:.82rem;margin-top:8px}
.blog-date i{margin-right:6px}
.case-card-img{width:calc(100% + 48px);height:180px;object-fit:contain;border-radius:10px 10px 0 0;margin:-32px -24px 16px -24px;background:var(--bg2);padding:16px}
.mt-20{margin-top:20px}
.mt-24{margin-top:24px}
.sub-heading{color:var(--accent2);margin-bottom:16px;font-weight:500;font-size:1.15rem;letter-spacing:1px}
.sub-hero .sub-heading{color:var(--accent2)}
.sub-section-title{color:var(--txt);margin:36px 0 18px;font-size:1.2rem;font-weight:600;letter-spacing:.5px}
.section-dark .sub-section-title,.tweaker-bg .sub-section-title{color:#fff}
.section-title.text-left{text-align:left}
.quote-block{border-left:3px solid var(--pri);padding-left:24px;margin:16px 0;color:var(--muted);line-height:2;font-size:.92rem;font-style:normal}
.quote-source{text-align:right;color:var(--pri);font-weight:500;font-size:.9rem;margin-top:12px}
.card-narrow{max-width:1040px;margin:0 auto}
.case-content{color:var(--muted);font-size:.95rem;line-height:2.2}
.case-content h1,.case-content h2,.case-content h3,.case-content h4,.case-content h5,.case-content h6{color:var(--txt);margin:28px 0 12px;font-weight:600}
.case-content h2{font-size:1.4rem}
.case-content h3{font-size:1.2rem}
.case-content h4{font-size:1.05rem}
.case-content p,.case-content li,.case-content span,.case-content div,.case-content blockquote,.case-content td,.case-content th{color:var(--muted);font-size:.95rem;line-height:2.2}
.case-content ul,.case-content ol{padding-left:24px;margin:12px 0}
.case-content li{margin-bottom:6px}
.case-content strong,.case-content b{color:var(--txt);font-weight:600}
.case-content a{color:var(--pri)}
.case-content table{width:100%;border-collapse:collapse;margin:16px 0}
.case-content td,.case-content th{border:1px solid var(--bdr);padding:10px 14px;text-align:left}
.step-num{font-size:2rem;font-weight:700;color:var(--pri)}
.pain-icon{color:#ef4444}
.desc-text{color:var(--muted);font-size:.88rem;line-height:1.9}

/* ========== 溢出处理 ========== */
.sol-card p,.info-card p,.feat-card p,.feature-item p,.split-desc,.check-list li{word-wrap:break-word;overflow-wrap:break-word}

/* ========== 动画 ========== */
@keyframes fadeUp{from{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}
.fade-in{opacity:0;transform:translateY(24px);transition:all .7s cubic-bezier(.4,0,.2,1)}
.fade-in.visible{opacity:1;transform:translateY(0)}
.particle{position:absolute;border-radius:50%;background:rgba(96,165,250,.6);opacity:.15;animation:float linear infinite}
@keyframes float{0%{transform:translateY(100vh) scale(0);opacity:0}10%{opacity:.15}90%{opacity:.15}100%{transform:translateY(-10vh) scale(1);opacity:0}}

/* ========== 响应式 ========== */
@media(max-width:1024px){
  .sol-row,.feat-row,.tool-trio,.feature-row{grid-template-columns:repeat(2,1fr)}
  .stats-row,.four-col{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:1fr}
  .badge-grid{grid-template-columns:repeat(4,1fr)}
  .service-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .three-col{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-links{display:none;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:rgba(11,26,59,.98);padding:20px;gap:0;border-bottom:1px solid rgba(59,130,246,.1)}
  .nav-links.open{display:flex}
  .nav-links>li{padding:12px 0;border-bottom:1px solid rgba(59,130,246,.06)}
  .dropdown-menu{position:static;transform:none;opacity:1;visibility:visible;background:transparent;border:none;box-shadow:none;padding:8px 0 0 16px}
  .mobile-toggle{display:block}
  .lang-switch{margin-left:auto;margin-right:12px}
  .hero h1{font-size:2.2rem;letter-spacing:3px}
  .sub-hero h1{font-size:1.8rem}
  .sol-row,.feat-row,.tool-trio,.feature-row,.two-col,.three-col,.four-col{grid-template-columns:1fr}
  .split-block,.split-block.reverse{grid-template-columns:1fr}
  .split-block.reverse .split-text{order:1}
  .split-block.reverse .split-img{order:2}
  .split-block .section-title{text-align:center!important}
  .footer-grid{grid-template-columns:1fr}
  .section-title{font-size:1.6rem}
  .case-slide{padding:0 16px}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .section{padding:60px 0}
}
@media(max-width:480px){
  .hero h1{font-size:1.7rem;letter-spacing:2px}
  .hero{min-height:80vh}
  .stats-row{grid-template-columns:1fr}
}