/* =============================================================
 * style.css — 天域宸岳 TYCYAI.CN
 * 构建: ES2024 | Container Queries | :has() | PWA-ready
 * ============================================================= */

/* ---------- Reset & Root ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
:root{--c-primary:#0c4a6e;--c-primary-light:#1e6f9f;--c-primary-dark:#08304a;--c-accent:#d97706;--c-accent-light:#f59e0b;--c-accent-gradient:linear-gradient(135deg,#0c4a6e,#1e6f9f);--c-bg:#faf8f5;--c-bg-alt:#f0f4f8;--c-bg-card:#fff;--c-text:#1e293b;--c-text-light:#64748b;--c-text-muted:#94a3b8;--c-border:rgba(12,74,110,.1);--c-shadow:0 2px 12px rgba(12,74,110,.06);--c-shadow-hover:0 6px 28px rgba(12,74,110,.1);--font-sans:Inter,Segoe UI,PingFang SC,Microsoft YaHei,system-ui,-apple-system,sans-serif;--radius:16px;--radius-sm:8px;--transition:all .3s cubic-bezier(.4,0,.2,1);--bounce:cubic-bezier(.34,1.56,.64,1);--cp:24px;--mw:1200px}

/* prefers-reduced-motion */
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}

/* Skip-to-link (Accessibility) */
.skip-link{position:fixed;top:-100%;left:16px;z-index:10000;padding:12px 24px;background:var(--c-primary-dark);color:#fff;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;text-decoration:none;transition:top .2s}
.skip-link:focus{top:16px}
.logo-flex{display:flex;align-items:center;gap:10px}

/* Base */
body{font-family:var(--font-sans);background:var(--c-bg);color:var(--c-text);overflow-x:hidden;line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:var(--c-primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--c-primary-light)}
.wrap{max-width:var(--mw);margin:0 auto;padding:0 var(--cp)}

/* Typography */
h1{font-size:clamp(1.8rem,3.5vw,2.5rem);font-weight:800;line-height:1.2;letter-spacing:-.02em}
h2{font-size:clamp(1.4rem,2.2vw,1.9rem);font-weight:700;line-height:1.3}
h3{font-size:clamp(1.05rem,1.3vw,1.2rem);font-weight:600;line-height:1.4}

/* Section */
.section-tag{display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--c-accent);margin-bottom:12px}
.section-tag::after{content:"";display:block;width:32px;height:2px;background:var(--c-accent);margin-top:6px;border-radius:2px}
.section-header{margin-bottom:48px;max-width:640px}
.section-header.tac{max-width:720px;margin:0 auto;text-align:center}
.section-header.tac .section-tag::after{margin:6px auto 0}
.section-header h2{color:var(--c-primary-dark)}
.section-header p{font-size:1rem;color:var(--c-text-light);max-width:600px;line-height:1.7}
.section-header.tac p{margin:0 auto}
.sec{padding:80px 0}
.sec-alt{background:var(--c-bg-alt)}
.tac{text-align:center}

/* Animations */
.anim{opacity:1;transform:translateY(0);transition:opacity .7s,transform .7s var(--bounce)}
.anim-d1{transition-delay:.05s}
.anim-d2{transition-delay:.1s}
.anim-d3{transition-delay:.15s}
.anim-d4{transition-delay:.2s}
.anim-d5{transition-delay:.25s}
.anim-d6{transition-delay:.3s}
.anim-d7{transition-delay:.35s}

/* Nav */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--c-border);height:68px}
.nav-inner{max-width:var(--mw);margin:0 auto;padding:0 var(--cp);display:flex;align-items:center;justify-content:space-between;height:100%}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:1.1rem;font-weight:700;color:var(--c-primary-dark);text-decoration:none;letter-spacing:-.01em}
.nav-logo-icon{width:36px;height:36px;border-radius:6px;background:linear-gradient(135deg,var(--c-primary-light),var(--c-accent));display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:800;flex-shrink:0;box-shadow:0 1px 3px rgba(0,0,0,.1)}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none}
.nav-links a{display:block;padding:8px 14px;font-size:.9rem;font-weight:500;color:var(--c-text-light);border-radius:var(--radius-sm);transition:var(--transition);text-decoration:none}
.nav-links a:hover{color:var(--c-primary);background:rgba(12,74,110,.04)}
.nav-links:has(a[aria-current=page]) a[aria-current=page]{color:var(--c-primary);background:rgba(12,74,110,.06);font-weight:600}
.nav-links .nav-cta{background:var(--c-accent-gradient);color:#fff!important;padding:10px 24px;border-radius:50px;font-weight:600}
.nav-links .nav-cta:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(12,74,110,.2)}
.nav-toggle{display:none;background:none;border:none;font-size:1.4rem;cursor:pointer;padding:8px;color:var(--c-text-light);border-radius:8px;transition:var(--transition);font-family:var(--font-sans)}
.nav-toggle:hover{background:rgba(12,74,110,.06)}

/* Hero */
.hero{padding:120px 0 80px;background:linear-gradient(165deg,#faf8f5,#e8f0f8 50%,#f0f4f8);position:relative;overflow:hidden}
.hero:has(.hero-left h1)::before{content:"";position:absolute;top:-20%;right:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(12,74,110,.03),transparent 70%);pointer-events:none}
.hero-inner{max-width:var(--mw);margin:0 auto;padding:0 var(--cp);display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-left h1{color:var(--c-primary-dark);margin-bottom:16px}
.hero-left h1 span{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-left p{font-size:1.05rem;color:var(--c-text-light);line-height:1.7;margin-bottom:28px}
.hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(12,74,110,.06);padding:6px 14px 6px 8px;border-radius:50px;font-size:.78rem;color:var(--c-primary);margin-bottom:18px;font-weight:500}
.badge-icon{width:20px;height:20px;background:var(--c-accent);color:#fff;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:.7rem}
.badge-icon:has(span){font-size:.75rem}
.hero-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;font-size:.95rem;font-weight:600;transition:all .3s var(--bounce);text-decoration:none;cursor:pointer;border:none;font-family:var(--font-sans)}
.hero-btn-primary{background:var(--c-accent-gradient);color:#fff;box-shadow:0 4px 14px rgba(12,74,110,.15)}
.hero-btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(12,74,110,.2)}
.hero-actions:has(.hero-btn-primary):has(.hero-btn-secondary){gap:14px}
.hero-btn-secondary{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-primary)}
.hero-btn-secondary:hover{background:rgba(12,74,110,.04);transform:translateY(-1px)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px}
.hero-stats{display:flex;gap:32px}
.hero-stat-num{font-size:1.5rem;font-weight:800;color:var(--c-primary-dark);line-height:1}
.hero-stat-label{font-size:.78rem;color:var(--c-text-muted);margin-top:4px}.hero-card-line .icon{font-size:1.2rem;flex-shrink:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:8px;margin-top:2px}.hero-card-line .text{font-size:.85rem;color:var(--c-text-light);line-height:1.6}
.hero-card-line{display:flex;align-items:flex-start;gap:12px;background:var(--c-bg-card);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--c-shadow);border:1px solid var(--c-border)}
.hero-card-line p{font-size:.88rem;color:var(--c-text-light);line-height:1.7;margin-bottom:16px}
.hero-card-line .check{color:var(--c-accent);margin-right:4px}

/* Trust Bar */
.trust-bar{background:var(--c-bg-alt);border-block:1px solid var(--c-border);padding:20px 0}
.trust-bar-inner{max-width:var(--mw);margin:0 auto;padding:0 var(--cp);display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:16px 32px}
.trust-badge{display:flex;align-items:center;gap:6px;font-size:.78rem;color:var(--c-text-muted);font-weight:500}

/* Services Grid (container queries) */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;container-type:inline-size;container-name:services}
@container services (max-width:500px){.services-grid{grid-template-columns:1fr}}
@container services (501px<=width<=700px){.services-grid{grid-template-columns:repeat(2,1fr)}}
.service-card{background:var(--c-bg-card);border-radius:var(--radius);padding:32px 24px;box-shadow:var(--c-shadow);border:1px solid var(--c-border);transition:all .4s var(--bounce);position:relative;overflow:hidden}
.services-grid:has(.service-card:hover) .service-card:not(:hover){opacity:.85;transform:scale(.98)}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--c-shadow-hover);border-color:var(--c-primary-light)}
.service-icon{width:48px;height:48px;background:linear-gradient(135deg,rgba(12,74,110,.08),rgba(30,111,159,.08));border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:18px;transition:var(--transition)}
.service-card:hover .service-icon{background:linear-gradient(135deg,rgba(12,74,110,.12),rgba(30,111,159,.12));transform:scale(1.05)}
.service-card h3{margin-bottom:10px}
.service-card p{font-size:.88rem;color:var(--c-text-light);line-height:1.6}
.service-tag{display:inline-block;font-size:.72rem;color:var(--c-accent);font-weight:500;margin-top:12px}

/* Platforms */
.platform-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:16px;container-type:inline-size;container-name:platforms}
.platform-item{background:var(--c-bg-card);padding:20px 28px;border-radius:50px;font-size:.9rem;font-weight:600;color:var(--c-text);box-shadow:var(--c-shadow);border:1px solid var(--c-border);transition:all .3s var(--bounce);display:inline-flex;align-items:center;gap:8px}
.platform-item span{font-size:1.2rem}
.platform-item:hover{transform:translateY(-2px);box-shadow:var(--c-shadow-hover);border-color:var(--c-primary-light);color:var(--c-primary)}
@container platforms (max-width:400px){.platform-item{border-radius:var(--radius-sm);padding:14px 20px;width:100%;justify-content:center}}

/* Products */
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;container-type:inline-size;container-name:products}
@container products (max-width:500px){.product-grid{grid-template-columns:1fr}}
@container products (501px<=width<=700px){.product-grid{grid-template-columns:repeat(2,1fr)}}
.product-item{display:flex;gap:14px;padding:20px;background:var(--c-bg-card);border-radius:var(--radius);border:1px solid var(--c-border);transition:all .3s var(--bounce)}
.product-item:hover{transform:translateY(-2px);box-shadow:var(--c-shadow-hover)}
.product-dot{width:8px;height:8px;border-radius:50%;background:var(--c-accent);margin-top:7px;flex-shrink:0}
.product-item h3{font-size:.95rem;margin-bottom:4px}
.product-item p{font-size:.82rem;color:var(--c-text-light);line-height:1.6}

/* Advantages */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;container-type:inline-size;container-name:advantages}
@container advantages (max-width:500px){.adv-grid{grid-template-columns:1fr 1fr}}
@container advantages (501px<=width<=680px){.adv-grid{grid-template-columns:repeat(2,1fr)}}
.adv-card{background:var(--c-bg-card);border-radius:var(--radius);padding:28px 20px;text-align:center;box-shadow:var(--c-shadow);border:1px solid var(--c-border);transition:all .3s var(--bounce)}
.adv-card:hover{transform:translateY(-3px);box-shadow:var(--c-shadow-hover)}
.adv-num{font-size:2rem;font-weight:800;color:var(--c-primary);line-height:1;margin-bottom:6px}
.adv-label{font-size:.9rem;font-weight:600;margin-bottom:6px}
.adv-desc{font-size:.78rem;color:var(--c-text-light);line-height:1.5}

/* Cases */
.cases-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;container-type:inline-size;container-name:cases}
@container cases (max-width:480px){.cases-grid{grid-template-columns:1fr}}
.case-card{background:var(--c-bg-card);border-radius:var(--radius);padding:28px;box-shadow:var(--c-shadow);border:1px solid var(--c-border);transition:all .3s var(--bounce)}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--c-shadow-hover)}
.case-tag{display:inline-block;font-size:.72rem;font-weight:600;padding:4px 12px;border-radius:20px;margin-bottom:10px}
.case-tag-local{background:rgba(217,119,6,.08);color:var(--c-accent)}
.case-tag-retail{background:rgba(30,111,159,.08);color:var(--c-primary)}
.case-tag-manufacturing{background:rgba(16,185,129,.08);color:#059669}
.case-tag-b2b{background:rgba(139,92,246,.08);color:#7c3aed}
.case-card h3{font-size:.95rem;margin-bottom:6px}
.case-desc{font-size:.82rem;color:var(--c-text-light);line-height:1.6;margin-bottom:14px}
.case-data{display:flex;gap:20px;padding-top:14px;border-top:1px solid var(--c-border)}
.case-data-num{font-size:1rem;font-weight:700;color:var(--c-primary-dark)}
.case-data-label{font-size:.72rem;color:var(--c-text-muted)}

/* Team */
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;container-type:inline-size;container-name:team}
@container team (max-width:500px){.team-grid{grid-template-columns:1fr}}
@container team (501px<=width<=680px){.team-grid{grid-template-columns:repeat(2,1fr)}}
.team-card{text-align:center;background:var(--c-bg-card);border-radius:var(--radius);padding:28px 16px 20px;box-shadow:var(--c-shadow);border:1px solid var(--c-border);transition:all .3s var(--bounce)}
.team-card:hover{transform:translateY(-2px);box-shadow:var(--c-shadow-hover)}
.team-avatar{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--c-primary-light),var(--c-accent));margin:0 auto 14px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff;font-weight:600}
.team-card h3{font-size:.95rem;margin-bottom:2px}
.team-role{font-size:.78rem;color:var(--c-accent);font-weight:500;margin-bottom:8px}
.team-desc{font-size:.78rem;color:var(--c-text-muted);line-height:1.5}

/* About */
.about-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:start;container-type:inline-size;container-name:about}
@container about (max-width:500px){.about-grid{grid-template-columns:1fr}}
.about-info h3{margin-bottom:12px}
.about-info p{font-size:.88rem;color:var(--c-text-light);line-height:1.7;margin-bottom:20px}
.about-qual{display:flex;flex-direction:column;gap:14px}
.qual-item{display:flex;align-items:flex-start;gap:12px;padding:16px;background:var(--c-bg);border-radius:var(--radius-sm)}
.qual-item .check{color:var(--c-accent);font-size:1rem;flex-shrink:0}
.qual-item h4{font-size:.9rem;font-weight:600;margin-bottom:2px}
.qual-item p{font-size:.78rem;color:var(--c-text-muted);line-height:1.5;margin-bottom:0}

/* Founder Quote */
.founder-quote{background:var(--c-bg-alt);color:var(--c-text);padding:60px 0;border-bottom:1px solid var(--c-border)}
.quote-block{max-width:800px;margin:0 auto;text-align:center;padding:0 var(--cp)}
.quote-icon{font-size:2rem;opacity:.3;margin-bottom:16px}
.quote-text{font-size:clamp(1rem,1.6vw,1.2rem);line-height:1.8;opacity:.9;margin-bottom:20px}
.quote-author{font-size:.85rem;opacity:.5}
.quote-line{width:40px;height:2px;background:var(--c-accent);margin:20px auto;border-radius:2px}

/* FAQ */
.faq-list{max-width:720px;margin:0 auto}
.faq-item{border:1px solid var(--c-border);border-radius:var(--radius-sm);margin-bottom:10px;overflow:hidden;transition:var(--transition)}
.faq-item.open{border-color:var(--c-primary-light);box-shadow:0 0 0 1px var(--c-primary-light)}
.faq-q{display:flex;align-items:center;justify-content:space-between;width:100%;padding:18px 20px;background:none;border:none;cursor:pointer;font-size:.95rem;font-weight:600;text-align:left;color:var(--c-text);font-family:var(--font-sans);transition:var(--transition);gap:12px}
.faq-q:hover{background:rgba(12,74,110,.02)}
.faq-q::after{content:"+";font-size:1.3rem;color:var(--c-text-muted);transition:transform .3s;flex-shrink:0}
.faq-item.open .faq-q::after{content:"−";transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s,padding .4s;padding:0 20px;font-size:.88rem;color:var(--c-text-light);line-height:1.7}
.faq-item.open .faq-a{max-height:600px;padding:0 20px 18px}

/* CTA */
.cta-section{background:var(--c-bg-alt);color:var(--c-text);padding:80px 0;text-align:center;border-top:1px solid var(--c-border)}
.cta-section h2{color:var(--c-text);margin-bottom:12px}
.cta-section p{color:var(--c-text-muted);max-width:480px;margin:0 auto 28px;font-size:.95rem}
.cta-buttons{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.cta-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;font-size:.95rem;font-weight:600;text-decoration:none;transition:all .3s var(--bounce);cursor:pointer;border:none;font-family:var(--font-sans)}
.cta-btn-primary{background:var(--c-accent);color:#fff}
.cta-btn-primary:hover{background:var(--c-accent-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.2)}
.cta-btn-secondary{background:transparent;color:var(--c-primary);border:1px solid var(--c-primary)}
.cta-btn-secondary:hover{background:rgba(12,74,110,.05);transform:translateY(-2px)}

/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;container-type:inline-size;container-name:contact}
@container contact (max-width:500px){.contact-grid{grid-template-columns:1fr}}
.contact-info h3{margin-bottom:16px}
.contact-info p{font-size:.88rem;color:var(--c-text-light);line-height:1.7;margin-bottom:24px}
.contact-item{display:flex;align-items:center;gap:12px;margin-bottom:14px;font-size:.88rem}
.contact-item .icon{font-size:1.1rem;flex-shrink:0}
.contact-form{background:var(--c-bg-card);border-radius:var(--radius);padding:32px;box-shadow:var(--c-shadow);border:1px solid var(--c-border)}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:.82rem;font-weight:600;color:var(--c-text);margin-bottom:6px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 14px;border:1px solid var(--c-border);border-radius:var(--radius-sm);font-size:.9rem;font-family:var(--font-sans);color:var(--c-text);background:var(--c-bg);transition:var(--transition);outline:none}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--c-primary-light);box-shadow:0 0 0 3px rgba(12,74,110,.08)}
.form-group textarea{resize:vertical;min-height:100px}
.form-submit{width:100%;padding:14px 28px;background:var(--c-accent-gradient);color:#fff;border:none;border-radius:50px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s var(--bounce);font-family:var(--font-sans)}
.form-submit:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(12,74,110,.15)}
.form-submit:disabled{opacity:.6;cursor:not-allowed;transform:none}

/* Footer */
.footer{background:var(--c-primary-dark);color:#fff;padding:56px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.06);margin-bottom:20px;container-type:inline-size;container-name:footer}
@container footer (max-width:500px){.footer-grid{grid-template-columns:1fr 1fr}}
.footer-brand p{font-size:.82rem;line-height:1.6;color:rgba(255,255,255,.5);margin-top:10px;max-width:320px}
.footer-col h4{font-size:.82rem;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.04em;text-transform:uppercase}
.footer-col a{display:block;font-size:.82rem;color:rgba(255,255,255,.5);margin-bottom:8px;transition:var(--transition);text-decoration:none}
.footer-col a:hover{color:var(--c-accent-light);padding-left:4px}
.footer-bottom{font-size:.72rem;color:rgba(255,255,255,.3);display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px}
.footer-bottom a{color:rgba(255,255,255,.3);transition:var(--transition);text-decoration:none}
.footer-bottom a:hover{color:var(--c-accent-light)}

/* Floating CTA */
.floating-cta{position:fixed;bottom:28px;right:28px;z-index:999;display:flex;flex-direction:column;gap:10px}
.floating-btn{width:48px;height:48px;border-radius:50%;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.3rem;box-shadow:0 4px 16px rgba(0,0,0,.08);transition:all .3s var(--bounce);text-decoration:none}
.floating-btn:hover{transform:scale(1.1)}
.floating-btn:active{transform:scale(.95)}
.floating-btn-phone{background:var(--c-accent-gradient);color:#fff}
.floating-btn-wechat{background:#07c160;color:#fff}
.floating-btn-top{background:var(--c-bg-card);color:var(--c-text-light);border:1px solid var(--c-border);display:none}

/* Reader Panel */
.reader-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.4);z-index:2000;opacity:0;pointer-events:none;transition:opacity .3s}
.reader-overlay.show{opacity:1;pointer-events:auto}
.reader-overlay.active{opacity:1;pointer-events:auto}
.reader-panel{position:fixed;top:0;right:-520px;width:500px;max-width:100vw;height:100%;background:var(--c-bg-card);z-index:2001;overflow-y:auto;transition:right .4s var(--bounce);box-shadow:-8px 0 40px rgba(0,0,0,.08)}
.reader-panel.show{right:0}
.reader-panel.active{right:0}
.reader-header{display:flex;align-items:center;justify-content:space-between;padding:20px 28px;border-bottom:1px solid var(--c-border);position:sticky;top:0;background:var(--c-bg-card);z-index:2}
.reader-header h2{font-size:1rem;font-weight:700;color:var(--c-primary-dark)}
.reader-close{background:none;border:none;font-size:1.3rem;cursor:pointer;color:var(--c-text-muted);padding:4px 8px;border-radius:8px;transition:var(--transition)}
.reader-close:hover{background:rgba(0,0,0,.04)}
.reader-body{padding:28px;font-size:.9rem;color:var(--c-text-light);line-height:1.7}
.reader-body .meta{font-size:.78rem;color:var(--c-text-muted);margin-bottom:12px;padding:12px 16px;background:var(--c-bg);border-radius:var(--radius-sm)}

/* Cookie Consent */
.cookie-consent{position:fixed;bottom:0;left:0;right:0;z-index:9999;background:var(--c-primary-dark);color:rgba(255,255,255,.85);padding:16px 24px;transform:translateY(100%);transition:transform .4s var(--bounce);font-size:.85rem}
.cookie-consent.show{transform:translateY(0)}
.cookie-consent.active{transform:translateY(0)}
.cookie-consent-inner{max-width:var(--mw);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.cookie-consent p{flex:1;min-width:240px;line-height:1.5}
.cookie-consent p a{color:var(--c-accent-light);text-decoration:underline}
.cookie-btns{display:flex;gap:10px;flex-shrink:0}
.cookie-btn{padding:8px 20px;border-radius:50px;font-size:.82rem;font-weight:600;cursor:pointer;border:none;font-family:var(--font-sans);transition:var(--transition)}
.cookie-btn-accept{background:var(--c-accent);color:#fff}
.cookie-btn-accept:hover{background:var(--c-accent-light)}
.cookie-btn-decline{background:transparent;color:rgba(255,255,255,.5);border:1px solid rgba(255,255,255,.15)}
.cookie-btn-decline:hover{background:rgba(255,255,255,.05);color:rgba(255,255,255,.7)}

/* Phone Modal */
.phone-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:3000;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
.phone-modal{background:var(--c-bg-card);border-radius:var(--radius);padding:40px 32px 32px;max-width:400px;width:90vw;text-align:center;box-shadow:0 24px 48px rgba(0,0,0,.12);animation:modalIn .3s var(--bounce)}
@keyframes modalIn{from{opacity:0;transform:translateY(20px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}
.phone-modal h3{font-size:1rem;margin-bottom:8px}
.phone-modal .phone-number{font-size:1.6rem;font-weight:800;color:var(--c-primary);margin:16px 0;letter-spacing:.04em}
.phone-modal button{padding:10px 24px;border-radius:50px;font-size:.85rem;font-weight:600;cursor:pointer;border:none;font-family:var(--font-sans);transition:var(--transition);margin:4px}
.phone-modal button[data-action=copy-phone]{background:var(--c-accent-gradient);color:#fff}
.phone-modal button[data-action=copy-phone]:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(12,74,110,.2)}

/* Responsive: 968px */
@media(max-width:968px){
.hero-inner{grid-template-columns:1fr;gap:32px}
.hero-right{order:-1}
.adv-grid{grid-template-columns:repeat(2,1fr)}
.cases-grid{grid-template-columns:1fr;max-width:500px;margin:0 auto}
.about-grid{grid-template-columns:1fr;gap:24px}
.contact-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:repeat(2,1fr)}
.product-grid{grid-template-columns:repeat(2,1fr)}
.team-grid{grid-template-columns:repeat(3,1fr)}
}

/* Responsive: 640px */
@media(max-width:640px){
.nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-bottom:1px solid var(--c-border);flex-direction:column;padding:8px 16px;gap:2px;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.nav-links.open{display:flex}
.nav-links a{padding:12px 14px;font-size:.95rem}
.nav-toggle{display:block}
.hero{padding:80px 0 56px}
.hero h1{font-size:1.5rem}
.hero-stats{gap:16px}
.hero-stat-num{font-size:1.2rem}
.adv-grid{grid-template-columns:1fr 1fr}
.adv-card{padding:20px 16px}
.product-grid{grid-template-columns:1fr}
.team-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
.sec{padding:48px 0}
.cta-section{padding:48px 0}
.cta-section h2{font-size:1.3rem}
.floating-cta{bottom:16px;right:16px}
.floating-btn{width:44px;height:44px;font-size:1.1rem}
.trust-bar-inner{gap:12px}
.section-header h2{font-size:1.3rem}
.services-grid{grid-template-columns:1fr}
.cookie-consent-inner{flex-direction:column;text-align:center}
.cookie-btns{width:100%;justify-content:center}
.phone-modal{padding:28px 20px 24px}
.phone-modal .phone-number{font-size:1.3rem}
}

/* Print */
@media print{.nav,.floating-cta,/* 各弹窗/覆盖层 display 控制由 JS 管理 */
.cookie-consent.show{display:block!important}
.phone-overlay.active,.reader-overlay.show{display:flex!important}
.reader-panel.show{display:block!important}.

}
/* ====== Custom Scrollbar ====== */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #c1c1c1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #a1a1a1; }
* { scrollbar-width: thin; scrollbar-color: #c1c1c1 #f1f1f1; }

/* ====== Focus Visible (a11y) ====== */
:focus-visible { outline: 2px solid #3b82f6; outline-offset: 2px; border-radius: 2px; }
/* Hero Background Shapes */
.hero-bg-shapes{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:0}
.hero-shape{position:absolute;border-radius:50%;opacity:.6}
.hero-shape-1{width:600px;height:600px;top:-200px;right:-100px;background:radial-gradient(circle,rgba(12,74,110,.08),transparent 70%)}
.hero-shape-2{width:300px;height:300px;bottom:10%;left:-5%;background:radial-gradient(circle,rgba(36,146,204,.06),transparent 70%)}
.hero-shape-3{width:150px;height:150px;top:40%;left:40%;background:radial-gradient(circle,rgba(12,74,110,.04),transparent 70%)}

/* Hero Right Card */
.hero-right-card{background:#fff;border-radius:16px;padding:24px;box-shadow:0 4px 24px rgba(0,0,0,.06)}

/* Hero Card Divider */
.hero-card-divider{height:1px;background:var(--c-border);margin:16px 0}

/* Hero Trust Row */
.hero-trust-row{display:flex;flex-wrap:wrap;gap:12px 20px;margin-bottom:0}
.hero-trust-item{font-size:.85rem;color:var(--c-text-muted);white-space:nowrap}

/* Case Data Item */
.case-data-item{text-align:center}