/* ============================================================
   橙果网络 - 商用级企业官网 全局样式
   惠州市橙果网络技术有限公司
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700;900&display=swap');

:root {
  --orange: #FF6B00;
  --orange-dark: #E85D00;
  --orange-light: #FFF3E6;
  --orange-ghost: rgba(255,107,0,0.06);
  --blue: #1677FF;
  --blue-light: #E6F4FF;
  --text: #141414;
  --text-2: #434343;
  --text-3: #8C8C8C;
  --text-4: #BFBFBF;
  --bg: #FFFFFF;
  --bg-gray: #F7F8FA;
  --bg-warm: #FFF9F5;
  --border: #E8E8E8;
  --border-light: #F0F0F0;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 6px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
  --radius-sm: 6px;--radius: 10px;--radius-lg: 16px;--radius-xl: 24px;
  --radius-full: 9999px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1280px;
  --font: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --h-nav: 68px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--h-nav) + 20px);-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;min-width:320px}
img,svg{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color 0.2s}
ul,ol{list-style:none}
button{cursor:pointer;font-family:inherit}
input,textarea,select{font-family:inherit}

.container{max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:100px 0}
@media(max-width:768px){.section{padding:64px 0}.container{padding:0 20px}}

.section-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--orange);background:var(--orange-light);padding:6px 16px;border-radius:var(--radius-full);margin-bottom:16px;letter-spacing:0.8px}
.section-tag::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--orange)}
.section-title{font-size:38px;font-weight:800;line-height:1.25;letter-spacing:-0.5px;margin-bottom:16px}
.section-subtitle{font-size:17px;color:var(--text-2);line-height:1.7;max-width:600px}
@media(max-width:768px){.section-title{font-size:28px}.section-subtitle{font-size:15px}}

/* ========== Buttons ========== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;line-height:1;border-radius:var(--radius-full);transition:all var(--ease);cursor:pointer;border:none;white-space:nowrap;padding:12px 28px;position:relative;overflow:hidden}
.btn-sm{padding:8px 20px;font-size:14px}
.btn-lg{padding:15px 36px;font-size:16px}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 4px 14px rgba(255,107,0,0.3)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-1px);box-shadow:0 8px 24px rgba(255,107,0,0.4)}
.btn-outline{background:transparent;color:var(--orange);border:2px solid var(--orange)}
.btn-outline:hover{background:var(--orange-light);transform:translateY(-1px)}
.btn-white{background:#fff;color:var(--orange);box-shadow:var(--shadow-sm)}
.btn-white:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}

/* ========== Navigation ========== */
.header{position:fixed;top:0;left:0;right:0;z-index:9999;height:var(--h-nav);background:rgba(255,255,255,0.88);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid transparent;transition:all 0.3s}
.header.scrolled{border-color:var(--border-light);box-shadow:var(--shadow-xs)}
.header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;max-width:var(--container);margin:0 auto;padding:0 32px}
@media(max-width:768px){.header-inner{padding:0 20px}}
.logo-link{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-svg{width:40px;height:40px}
.logo-text{font-size:20px;font-weight:800;letter-spacing:-0.5px;color:var(--text)}
.nav{display:flex;align-items:center;gap:2px}
.nav-link{font-size:14px;font-weight:500;color:var(--text-2);padding:8px 14px;border-radius:var(--radius-sm);transition:all 0.2s;position:relative}
.nav-link::after{content:'';position:absolute;bottom:2px;left:50%;transform:translateX(-50%) scaleX(0);width:16px;height:2px;border-radius:1px;background:var(--orange);transition:transform 0.25s var(--ease)}
.nav-link:hover,.nav-link.active{color:var(--orange)}
.nav-link.active::after{transform:translateX(-50%) scaleX(1)}
.nav-cta{margin-left:12px}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:8px;width:40px;height:40px;align-items:flex-end;justify-content:center}
.menu-toggle span{display:block;height:2px;background:var(--text);border-radius:1px;transition:all 0.3s var(--ease)}
.menu-toggle span:nth-child(1){width:22px}
.menu-toggle span:nth-child(2){width:16px}
.menu-toggle span:nth-child(3){width:20px}

/* ========== Hero ========== */
.hero{position:relative;min-height:calc(100vh - var(--h-nav));display:flex;align-items:center;padding:calc(var(--h-nav) + 60px) 0 60px;overflow:hidden;background:linear-gradient(170deg,#FAF9F6 0%,#FFF7F0 35%,#FFFFFF 70%)}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--orange);margin-bottom:24px;letter-spacing:1px}
.hero-badge-line{width:24px;height:1.5px;background:var(--orange);border-radius:1px}
.hero-title{font-size:clamp(36px,5.5vw,64px);font-weight:900;line-height:1.08;letter-spacing:-1.5px;margin-bottom:20px}
.hero-title span{color:var(--orange)}
.hero-desc{font-size:18px;color:var(--text-2);line-height:1.8;margin-bottom:36px;max-width:480px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.hero-call{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--text-2)}
.hero-call-icon{width:36px;height:36px;border-radius:50%;background:var(--orange-light);display:flex;align-items:center;justify-content:center;color:var(--orange);font-size:16px}
.hero-visual{display:flex;justify-content:center;align-items:center}
.hero-card{background:rgba(255,255,255,0.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(0,0,0,0.06);border-radius:var(--radius-xl);padding:40px 36px;box-shadow:var(--shadow-lg);max-width:440px;width:100%}
.hero-card-title{font-size:16px;font-weight:700;margin-bottom:24px;color:var(--text);text-align:center}
.hero-stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 28px}
.hero-stat{text-align:center}
.hero-stat-num{font-size:28px;font-weight:900;color:var(--orange);line-height:1.2;margin-bottom:4px}
.hero-stat-num small{font-size:16px;font-weight:600}
.hero-stat-label{font-size:12px;color:var(--text-3);font-weight:500}
.hero-stat-full{grid-column:1/-1;padding-top:16px;border-top:1px solid var(--border-light)}
.hero-bg-pattern{position:absolute;inset:0;pointer-events:none;opacity:0.5}
.hero-dots{position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,107,0,0.08) 1px,transparent 1px);background-size:28px 28px}
.hero-gradient{position:absolute;width:600px;height:600px;border-radius:50%;filter:blur(100px);opacity:0.3}
.hero-gradient-1{top:-150px;right:-150px;background:radial-gradient(circle,rgba(255,107,0,0.15),transparent)}
.hero-gradient-2{bottom:-100px;left:20%;background:radial-gradient(circle,rgba(22,119,255,0.08),transparent)}

/* ========== Data Strip ========== */
.data-bar{background:linear-gradient(135deg,#1A1A2E,#16213E);padding:40px 0}
.data-bar-grid{display:flex;justify-content:space-around;align-items:center;flex-wrap:wrap;gap:32px}
.data-bar-item{text-align:center}
.data-bar-num{font-size:34px;font-weight:900;background:linear-gradient(135deg,var(--orange),#FFA940);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:4px;line-height:1.2}
.data-bar-label{font-size:13px;color:rgba(255,255,255,0.55);font-weight:400}

/* ========== Section Common ========== */
.section-header{text-align:center;margin-bottom:64px}
.section-header .section-subtitle{margin:0 auto}

/* ========== Page Hero (子页面顶部) ========== */
.page-hero{position:relative;padding:calc(var(--h-nav) + 64px) 0 64px;background:linear-gradient(170deg,#FAF9F6 0%,#FFF7F0 50%,#FFF 100%);text-align:center;overflow:hidden}
.page-hero .page-hero-dots{position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,107,0,0.05) 1px,transparent 1px);background-size:24px 24px;pointer-events:none}
.page-hero-content{position:relative;z-index:2}
.page-hero-tag{display:inline-block;font-size:13px;font-weight:600;color:var(--orange);background:var(--orange-light);padding:5px 16px;border-radius:var(--radius-full);margin-bottom:20px;letter-spacing:0.8px}
.page-hero-title{font-size:clamp(28px,4vw,44px);font-weight:900;line-height:1.2;letter-spacing:-0.5px;margin-bottom:16px}
.page-hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin:0 auto}
.breadcrumb{display:flex;align-items:center;justify-content:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:32px}
.breadcrumb a{color:var(--text-2)}.breadcrumb a:hover{color:var(--orange)}
.breadcrumb span{color:var(--text-4)}

/* ========== Cards ========== */
.card{background:#fff;border-radius:var(--radius-lg);border:1px solid var(--border);transition:all var(--ease)}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:rgba(255,107,0,0.12)}

/* ========== Footer ========== */
.footer{background:#141414;color:rgba(255,255,255,0.7);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 2fr;gap:48px;margin-bottom:40px}
.footer-brand h3{font-size:24px;font-weight:800;color:#fff;margin-bottom:8px}
.footer-slogan{color:var(--orange);font-weight:600;margin-bottom:4px}
.footer-desc{font-size:14px;color:rgba(255,255,255,0.4)}
.footer-links{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:0.5px}
.footer-col a{display:block;font-size:13px;color:rgba(255,255,255,0.45);padding:5px 0;transition:all 0.2s}
.footer-col a:hover{color:var(--orange)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.06);padding-top:24px;text-align:center}
.footer-bottom p{font-size:12px;color:rgba(255,255,255,0.3);line-height:1.8}

/* ========== Back to Top ========== */
.back-to-top{position:fixed;bottom:28px;right:28px;z-index:998;width:44px;height:44px;border-radius:50%;background:var(--orange);color:#fff;border:none;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(255,107,0,0.35);opacity:0;transform:translateY(16px);pointer-events:none;transition:all var(--ease)}
.back-to-top.visible{opacity:1;transform:translateY(0);pointer-events:auto}
.back-to-top:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(255,107,0,0.5)}

/* ========== Animations ========== */
.reveal{opacity:0;transform:translateY(24px);transition:opacity 0.7s var(--ease-out),transform 0.7s var(--ease-out)}
.reveal.visible{opacity:1;transform:translateY(0)}
.delay-100{transition-delay:0.1s}.delay-200{transition-delay:0.2s}.delay-300{transition-delay:0.3s}.delay-400{transition-delay:0.4s}.delay-500{transition-delay:0.5s}

/* ========== Service Cards ========== */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{padding:36px 28px;text-align:center}
.service-card-icon{width:56px;height:56px;border-radius:var(--radius);background:var(--orange-light);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;color:var(--orange);transition:all var(--ease)}
.service-card:hover .service-card-icon{background:var(--orange);color:#fff;transform:scale(1.05)}
.service-card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.service-card p{font-size:14px;color:var(--text-2);line-height:1.7;margin-bottom:6px}
.service-card .svc-sub{font-size:12px;color:var(--text-3)}

/* ========== Process Steps ========== */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.process-item{text-align:center;position:relative}
.process-item::after{content:'';position:absolute;top:36px;left:calc(50% + 32px);width:calc(100% - 64px);height:1.5px;background:var(--border);z-index:0}
.process-item:last-child::after{display:none}
.process-num{width:72px;height:72px;border-radius:50%;background:#fff;border:2px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:900;color:var(--text-3);margin:0 auto 20px;position:relative;z-index:1;transition:all var(--ease)}
.process-item:hover .process-num{background:var(--orange);border-color:var(--orange);color:#fff;box-shadow:0 8px 24px rgba(255,107,0,0.2)}
.process-item h3{font-size:17px;font-weight:700;margin-bottom:6px}
.process-item p{font-size:13px;color:var(--text-3);line-height:1.6}

/* ========== FAQ ========== */
.faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all var(--ease)}
.faq-item:hover{border-color:rgba(255,107,0,0.2)}
.faq-q{display:flex;align-items:center;gap:14px;padding:18px 24px;cursor:pointer;background:#fff}
.faq-q-icon{width:32px;height:32px;border-radius:50%;background:var(--orange-light);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:900;color:var(--orange);flex-shrink:0}
.faq-q h4{flex:1;font-size:16px;font-weight:600}
.faq-q-toggle{font-size:20px;color:var(--text-3);transition:transform 0.3s;flex-shrink:0}
.faq-a{max-height:0;overflow:hidden;transition:all 0.4s var(--ease)}
.faq-a-content{padding:0 24px;font-size:14px;color:var(--text-2);line-height:1.8}
.faq-item.open .faq-a{max-height:300px}
.faq-item.open .faq-a-content{padding:0 24px 20px}
.faq-item.open .faq-q-toggle{transform:rotate(45deg);color:var(--orange)}
.faq-item.open{border-color:rgba(255,107,0,0.3);box-shadow:var(--shadow-xs)}

/* ========== Timeline ========== */
.timeline{position:relative;max-width:760px;margin:0 auto;padding-left:100px}
.timeline::before{content:'';position:absolute;left:64px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--orange),var(--orange-light) 30%,var(--border-light) 80%)}
.tl-item{position:relative;margin-bottom:32px}
.tl-year{position:absolute;left:-100px;top:4px;font-size:19px;font-weight:900;color:var(--orange);width:72px;text-align:right}
.tl-dot{position:absolute;left:-33px;top:12px;width:10px;height:10px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 4px rgba(255,107,0,0.12)}
.tl-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px}
.tl-card h4{font-size:16px;font-weight:700;margin-bottom:6px}
.tl-card p{font-size:14px;color:var(--text-2);line-height:1.7}

/* ========== Contact ========== */
.contact-grid{display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:start}
.contact-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow-sm)}
.contact-card h3{font-size:20px;font-weight:700;margin-bottom:4px}
.contact-card .contact-role{font-size:14px;color:var(--orange);font-weight:500;margin-bottom:28px}
.contact-list{display:flex;flex-direction:column;gap:18px}
.contact-row{display:flex;gap:14px;align-items:flex-start}
.contact-row-icon{width:40px;height:40px;border-radius:var(--radius-sm);background:var(--orange-light);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px;color:var(--orange)}
.contact-row-label{font-size:11px;color:var(--text-3);font-weight:500;margin-bottom:2px;text-transform:uppercase;letter-spacing:0.5px}
.contact-row-value{font-size:15px;font-weight:600;color:var(--text);line-height:1.5}
.contact-side{position:sticky;top:calc(var(--h-nav) + 24px)}
.qr-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;text-align:center;box-shadow:var(--shadow-sm)}
.qr-card .qr-img{text-align:center;margin-bottom:16px;width:100%}
.qr-card .qr-img img{display:block;width:140px;margin:0 auto;border-radius:8px;box-shadow:0 2px 8px rgba(0,0,0,0.08)}
.qr-card .qr-label{font-size:14px;font-weight:600;margin-bottom:6px}
.qr-card .qr-id{font-size:13px;color:var(--text-3)}

/* ========== Mobile ========== */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;text-align:center}
  .hero-desc{margin:0 auto 36px}
  .hero-actions{justify-content:center}
  .hero-visual{order:-1}
  .hero-card{max-width:360px}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .process-item::after{display:none}
  .contact-grid{grid-template-columns:1fr}
  .contact-side{position:static}
  .footer-grid{grid-template-columns:1fr}
  .footer-links{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav{display:none;position:fixed;top:var(--h-nav);left:0;right:0;bottom:0;background:rgba(255,255,255,0.98);backdrop-filter:blur(16px);flex-direction:column;justify-content:flex-start;gap:0;padding:16px 0;z-index:99;overflow-y:auto}
  .nav.open{display:flex}
  .nav-link{font-size:16px;padding:14px 24px}
  .nav-cta{margin:20px 24px}
  .menu-toggle{display:flex}
  .services-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr}
  .footer-links{grid-template-columns:1fr}
  .timeline{padding-left:72px}
  .timeline::before{left:44px}
  .tl-year{left:-72px;width:52px;font-size:15px}
  .tl-dot{left:-27px}
}
@media(max-width:480px){
  .hero-title{font-size:30px}
  .hero-actions{flex-direction:column}
  .hero-card{padding:24px 20px}
  .hero-stats-grid{gap:12px 16px}
  .hero-stat-num{font-size:22px}
  .data-bar-grid{gap:20px}
  .data-bar-num{font-size:26px}
}