/* ========== 嗨词WORDS 官网 V3 - 白色高级感版 ========== */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #1e40af;
  --primary-light: #3b82f6;
  --primary-dark: #1e3a8a;
  --accent: #f97316;
  --accent-light: #fb923c;
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-card: #ffffff;
  --bg-gray: #f1f5f9;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* ---------- Reset & Base ---------- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;}
body{font-family:-apple-system,'Microsoft YaHei','PingFang SC','Helvetica Neue',Arial,sans-serif;color:var(--text-primary);background:var(--bg-white);line-height:1.7;overflow-x:hidden;}
a{text-decoration:none;color:inherit;transition:color .25s;}
img{max-width:100%;display:block;}
ul,ol{list-style:none;}

/* ---------- Selection ---------- */
::selection{background:rgba(30,64,175,0.15);color:var(--primary-dark);}

/* ========== Navbar - White Glass ========== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 48px;background:rgba(255,255,255,0.85);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(226,232,240,0.6);transition:all .4s cubic-bezier(.4,0,.2,1);}
.navbar.solid{background:rgba(255,255,255,0.98);box-shadow:var(--shadow);}
.nav-logo{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:700;color:var(--text-primary);}
.nav-logo img{height:36px;width:auto;}
.nav-links{display:flex;gap:36px;}
.nav-links a{font-size:14px;font-weight:500;color:var(--text-secondary);position:relative;padding:6px 0;transition:color .25s;}
.nav-links a:hover,.nav-links a.active{color:var(--primary);}
.nav-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:1px;transition:width .3s cubic-bezier(.4,0,.2,1);}
.nav-links a:hover::after,.nav-links a.active::after{width:100%;}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:6px;}
.nav-toggle span{width:22px;height:2.5px;background:var(--text-secondary);display:block;border-radius:2px;transition:all .3s;}
.nav-toggle.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px);}

/* ========== Hero Section - White Gradient ========== */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;overflow:hidden;padding:120px 24px 80px;background:linear-gradient(180deg,var(--bg-white) 0%,var(--bg-light) 50%,var(--bg-white) 100%);}
.hero::before{content:'';position:absolute;inset:0;background:
  radial-gradient(ellipse 80% 50% at 50% 0%,rgba(59,130,246,0.08) 0%,transparent 60%),
  radial-gradient(ellipse 60% 40% at 80% 100%,rgba(249,115,22,0.05) 0%,transparent 50%);}
.hero__grid{position:absolute;inset:0;background-image:
  linear-gradient(rgba(148,163,184,0.05) 1px,transparent 1px),
  linear-gradient(90deg,rgba(148,163,184,0.05) 1px,transparent 1px);
  background-size:60px 60px;}
.hero-inner{position:relative;z-index:2;max-width:820px;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 20px;background:rgba(30,64,175,0.06);border:1px solid rgba(30,64,175,0.12);border-radius:30px;font-size:13px;font-weight:500;color:var(--primary);margin-bottom:32px;}
.hero-badge svg{width:16px;height:16px;}
.hero h1{font-size:clamp(36px,5.5vw,56px);font-weight:800;color:var(--text-primary);line-height:1.15;margin-bottom:28px;letter-spacing:-1px;}
.hero h1 .hl{display:inline;background:linear-gradient(135deg,var(--primary),var(--primary-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.hero-sub{font-size:17px;color:var(--text-secondary);margin-bottom:44px;max-width:580px;margin-left:auto;margin-right:auto;line-height:1.9;}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* Buttons - White Theme */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 36px;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;border:none;letter-spacing:.3px;transition:all .35s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 4px 16px rgba(30,64,175,0.25),inset 0 1px 0 rgba(255,255,255,.15);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(30,64,175,0.35);}
.btn-outline{background:#fff;border:1.5px solid var(--border);color:var(--text-secondary);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-light));color:#fff;box-shadow:0 4px 16px rgba(249,115,22,0.25);}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(249,115,22,0.35);}

/* Hero scroll indicator */
.hero-scroll{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);z-index:2;display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--text-muted);font-size:11px;letter-spacing:2px;text-transform:uppercase;animation:bounceDown 2s ease-in-out infinite;}
.hero-scroll__line{width:1px;height:40px;background:linear-gradient(to bottom,var(--primary-light),transparent);}
@keyframes bounceDown{0%,100%{transform:translateX(-50%) translateY(0);}50%{transform:translateX(-50%) translateY(8px);}}

/* ========== Section Base ========== */
.section{padding:100px 24px;position:relative;}
.section-head{text-align:center;margin-bottom:64px;}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:var(--primary);letter-spacing:2px;text-transform:uppercase;margin-bottom:16px;}
.section-label::before,.section-label::after{content:'';width:24px;height:1px;background:linear-gradient(90deg,transparent,var(--primary));}
.section-label::after{background:linear-gradient(90deg,var(--primary),transparent);}
.section-head h2{font-size:clamp(28px,4vw,40px);font-weight:700;color:var(--text-primary);margin-bottom:16px;letter-spacing:-.5px;}
.section-head p{font-size:15px;color:var(--text-secondary);max-width:580px;margin:0 auto;line-height:1.85;}
.bg-light{background:var(--bg-light);}
.bg-white{background:var(--bg-white);}
.bg-gray{background:var(--bg-gray);}

/* ========== Features Grid - White Cards ========== */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;max-width:1160px;margin:0 auto;}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:36px 28px;transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;box-shadow:var(--shadow-sm);}
.feature-card:hover{transform:translateY(-6px);border-color:var(--primary-light);box-shadow:var(--shadow-xl);}
.feature-icon{width:56px;height:56px;background:linear-gradient(135deg,rgba(30,64,175,0.08),rgba(59,130,246,0.04));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:24px;transition:transform .3s;}
.feature-card:hover .feature-icon{transform:scale(1.08);}
.feature-card h3{font-size:17px;color:var(--text-primary);margin-bottom:10px;font-weight:600;}
.feature-card p{font-size:14px;color:var(--text-secondary);line-height:1.9;}

/* ========== Stats Counter ========== */
.stats-section{background:linear-gradient(135deg,var(--primary),var(--primary-dark));position:relative;overflow:hidden;}
.stats-section::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");}
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:32px;max-width:960px;margin:0 auto;text-align:center;position:relative;z-index:1;}
.stat-item{padding:32px 16px;}
.stat-item::after{content:'';position:absolute;right:0;top:20%;height:60%;width:1px;background:rgba(255,255,255,0.1);}
.stat-item:last-child::after{display:none;}
.stat-number{font-size:clamp(38px,5vw,56px);font-weight:800;color:#fff;line-height:1.1;margin-bottom:8px;text-shadow:0 2px 10px rgba(0,0,0,0.1);}
.stat-number .suffix{font-size:.5em;}
.stat-item p{color:rgba(255,255,255,0.8);font-size:14px;font-weight:500;}

/* ========== Student Cases ========== */
.cases-wrapper{max-width:1140px;margin:0 auto;}
.cases-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;}
.case-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:all .4s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm);}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-xl);border-color:var(--primary-light);}
.case-card__image{height:180px;background:linear-gradient(135deg,var(--primary-light),var(--primary));display:flex;align-items:center;justify-content:center;font-size:48px;color:#fff;position:relative;}
.case-badge{position:absolute;top:16px;left:16px;padding:6px 14px;background:rgba(255,255,255,0.95);backdrop-filter:blur(8px);border-radius:20px;font-size:12px;font-weight:600;color:var(--primary);}
.case-card__body{padding:28px;}
.case-card__score{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.score-from{font-size:18px;font-weight:600;color:var(--text-muted);text-decoration:line-through;text-decoration-color:var(--accent);}
.score-arrow{color:var(--accent);font-size:16px;}
.score-to{font-size:24px;font-weight:800;color:var(--primary);}
.case-card__desc{font-size:14px;color:var(--text-secondary);line-height:1.8;margin-bottom:16px;}
.case-tag{display:inline-block;padding:4px 14px;border-radius:20px;background:rgba(30,64,175,0.06);color:var(--primary);font-size:12px;font-weight:500;}

/* ========== Process Steps ========== */
.steps-container{max-width:1000px;margin:0 auto;position:relative;}
.steps-line{position:absolute;top:44px;left:calc(50% - 2px);width:4px;height:calc(100% - 88px);background:linear-gradient(to bottom,var(--primary-light),var(--primary),transparent);border-radius:2px;opacity:.2;}
.step-row{display:flex;align-items:center;gap:32px;margin-bottom:40px;position:relative;}
.step-row:nth-child(even){flex-direction:row-reverse;}
@media(max-width:768px){
  .step-row,.step-row:nth-child(even){flex-direction:column;text-align:center;}
  .steps-line{display:none;}
}
.step-num{width:56px;height:56px;min-width:56px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;color:#fff;box-shadow:0 4px 16px rgba(30,64,175,0.3);z-index:1;position:relative;}
.step-content{flex:1;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:28px 32px;transition:all .3s;box-shadow:var(--shadow-sm);}
.step-content:hover{border-color:var(--primary-light);transform:translateY(-3px);box-shadow:var(--shadow);}
.step-content h4{font-size:17px;color:var(--text-primary);margin-bottom:8px;font-weight:600;}
.step-content p{font-size:14px;color:var(--text-secondary);line-height:1.8;}

/* ========== FAQ Accordion ========== */
.faq-wrapper{max-width:760px;margin:0 auto;}
.faq-item{border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:12px;overflow:hidden;transition:border-color .3s;background:var(--bg-card);box-shadow:var(--shadow-sm);}
.faq-item:hover{border-color:var(--primary-light);}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:22px 28px;background:none;border:none;cursor:pointer;text-align:left;font-size:15px;font-weight:600;color:var(--text-primary);font-family:inherit;transition:color .25s;}
.faq-question:hover{color:var(--primary);}
.faq-icon{width:24px;height:24px;border-radius:50%;background:rgba(30,64,175,0.08);display:flex;align-items:center;justify-content:center;transition:transform .3s,color .25s;flex-shrink:0;margin-left:16px;font-size:14px;color:var(--primary);}
.faq-item.open .faq-icon{transform:rotate(45deg);}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s cubic-bezier(.4,0,.2,1);}
.faq-answer-inner{padding:0 28px 24px;font-size:14px;color:var(--text-secondary);line-height:1.9;}

/* ========== CTA Section ========== */
.cta-section{text-align:center;position:relative;overflow:hidden;background:linear-gradient(135deg,var(--bg-light),var(--bg-white));}
.cta-inner{max-width:700px;margin:0 auto;position:relative;z-index:2;}
.cta-glow{position:absolute;width:500px;height:500px;border-radius:50%;background:radial-gradient(circle,rgba(30,64,175,0.06) 0%,transparent 70%);top:50%;left:50%;transform:translate(-50%,-50%);}
.cta-section h2{font-size:clamp(26px,4vw,36px);font-weight:700;color:var(--text-primary);margin-bottom:18px;}
.cta-section p{font-size:16px;color:var(--text-secondary);margin-bottom:36px;line-height:1.8;}

/* ========== Footer ========== */
.footer{background:var(--bg-light);padding:70px 24px 28px;border-top:1px solid var(--border);}
.footer-inner{max-width:1180px;margin:0 auto;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px;}
.footer-brand h3{font-size:18px;font-weight:700;color:var(--text-primary);margin-bottom:12px;display:flex;align-items:center;gap:10px;}
.footer-brand h3 img{height:28px;}
.footer-brand p{color:var(--text-muted);font-size:13.5px;line-height:1.95;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-primary);margin-bottom:18px;position:relative;padding-bottom:10px;}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:24px;height:2px;background:var(--primary);border-radius:1px;}
.footer-col a{display:block;color:var(--text-muted);font-size:13.5px;margin-bottom:10px;transition:color .25s;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{border-top:1px solid var(--border);padding-top:24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.footer-copy{color:var(--text-muted);font-size:12.5px;}
.footer-socials{display:flex;gap:12px;}
.footer-socials a{width:36px;height:36px;border-radius:50%;background:#fff;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:14px;transition:all .25s;}
.footer-socials a:hover{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ========== Page Hero ========== */
.page-hero{min-height:42vh;display:flex;align-items:center;justify-content:center;text-align:center;position:relative;overflow:hidden;padding:130px 24px 64px;background:linear-gradient(180deg,var(--bg-white) 0%,var(--bg-light) 100%);}
.page-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 60% 40% at 50% 0%,rgba(59,130,246,0.06) 0%,transparent 60%);}
.page-hero h1{font-size:clamp(30px,4.5vw,44px);font-weight:700;color:var(--text-primary);margin-bottom:16px;position:relative;z-index:1;}
.page-hero p{font-size:15px;color:var(--text-secondary);max-width:580px;margin:0 auto;position:relative;z-index:1;line-height:1.8;}
.page-hero .breadcrumb{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:20px;}
.page-hero .breadcrumb a{color:var(--primary);}
.page-hero .breadcrumb a:hover{text-decoration:underline;}

/* ========== About Page ========== */
.about-content{max-width:900px;margin:0 auto;}
.about-intro{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:64px;}
@media(max-width:768px){.about-intro{grid-template-columns:1fr;}}
.about-image{border-radius:var(--radius-lg);overflow:hidden;aspect-ratio:4/3;background:linear-gradient(135deg,var(--bg-light),var(--bg-gray));display:flex;align-items:center;justify-content:center;position:relative;border:1px solid var(--border);}
.about-image img{width:100%;height:100%;object-fit:cover;}
.about-text h3{font-size:24px;color:var(--text-primary);margin-bottom:18px;font-weight:600;}
.about-text p{font-size:15px;color:var(--text-secondary);line-height:1.95;margin-bottom:16px;}
.about-values{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:48px;}
.value-card{padding:28px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);transition:all .3s;box-shadow:var(--shadow-sm);}
.value-card:hover{border-color:var(--primary-light);transform:translateY(-4px);box-shadow:var(--shadow);}
.value-card h4{font-size:16px;color:var(--text-primary);margin-bottom:8px;font-weight:600;}
.value-card p{font-size:13.5px;color:var(--text-secondary);line-height:1.85;}

/* ========== Courses Page ========== */
.courses-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;max-width:1140px;margin:0 auto;}
.course-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px 24px;transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;box-shadow:var(--shadow-sm);}
.course-card::before{content:'';position:absolute;top:0;left:0;width:4px;height:0;background:linear-gradient(to bottom,var(--primary),var(--primary-light));border-radius:0 0 2px 0;transition:height .4s;}
.course-card:hover{transform:translateY(-6px);border-color:var(--primary-light);box-shadow:var(--shadow-xl);}
.course-card:hover::before{height:100%;}
.course-icon{width:52px;height:52px;background:linear-gradient(135deg,rgba(30,64,175,0.08),rgba(59,130,246,0.04));border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;margin-bottom:18px;font-size:24px;}
.course-card h3{font-size:17px;color:var(--text-primary);margin-bottom:10px;font-weight:600;}
.course-card p{font-size:14px;color:var(--text-secondary);line-height:1.88;margin-bottom:14px;}
.course-features{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.course-feature-tag{padding:4px 12px;border-radius:20px;background:rgba(30,64,175,0.06);color:var(--primary);font-size:12px;font-weight:500;}
.course-price{display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--border-light);}
.course-price .label{font-size:12px;color:var(--text-muted);}
.course-price .value{font-size:15px;font-weight:700;color:var(--primary);}

/* ========== Contact Page ========== */
.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;max-width:1060px;margin:0 auto;}
@media(max-width:768px){.contact-layout{grid-template-columns:1fr;}}
.contact-info-cards{display:flex;flex-direction:column;gap:16px;}
.contact-info-card{display:flex;gap:16px;padding:22px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);transition:all .3s;box-shadow:var(--shadow-sm);}
.contact-info-card:hover{border-color:var(--primary-light);transform:translateY(-2px);box-shadow:var(--shadow);}
.contact-info-icon{width:48px;height:48px;min-width:48px;background:linear-gradient(135deg,rgba(30,64,175,0.08),rgba(59,130,246,0.04));border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:20px;}
.contact-info-card h4{font-size:15px;color:var(--text-primary);margin-bottom:6px;font-weight:600;}
.contact-info-card p{font-size:13.5px;color:var(--text-secondary);line-height:1.75;}
.contact-form{display:flex;flex-direction:column;gap:16px;}
.form-group{display:flex;flex-direction:column;gap:6px;}
.form-group label{font-size:13px;font-weight:500;color:var(--text-secondary);}
.form-input{width:100%;padding:14px 18px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:14px;font-family:inherit;transition:all .25s;outline:none;}
.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,64,175,0.08);}
textarea.form-input{min-height:140px;resize:vertical;}
select.form-input{cursor:pointer;}
.map-placeholder{width:100%;height:280px;background:var(--bg-light);border:1px solid var(--border);border-radius:var(--radius-lg);display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--text-muted);font-size:14px;margin-top:48px;gap:12px;}
.map-placeholder svg{width:48px;height:48px;opacity:.3;}

/* ========== Reveal Animations ========== */
.reveal{opacity:0;transform:translateY(30px);transition:all .7s cubic-bezier(.4,0,.2,1);}
.reveal.visible{opacity:1;transform:translateY(0);}
.reveal-delay-1{transition-delay:.1s;}
.reveal-delay-2{transition-delay:.2s;}
.reveal-delay-3{transition-delay:.3s;}
.reveal-delay-4{transition-delay:.4s;}
.reveal-delay-5{transition-delay:.5s;}

/* ========== Responsive ========== */
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cases-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));}
}
@media(max-width:768px){
  .navbar{padding:0 20px;height:64px;}
  .nav-links{display:none;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:rgba(255,255,255,0.98);backdrop-filter:blur(20px);padding:24px;gap:4px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg);}
  .nav-links.open{display:flex;}
  .nav-toggle{display:flex;}
  .section{padding:72px 16px;}
  .section-head{margin-bottom:48px;}
  .features{grid-template-columns:1fr;}
  .hero h1{font-size:30px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .page-hero{min-height:35vh;padding:110px 20px 48px;}
  .contact-layout{grid-template-columns:1fr;}
  .stat-item::after{display:none;}
}
@media(max-width:480px){
  .hero h1{font-size:26px;}
  .hero-sub{font-size:14.5px;}
  .hero-btns{flex-direction:column;align-items:center;}
  .btn{padding:13px 32px;font-size:14px;width:100%;max-width:280px;justify-content:center;}
  .section-head h2{font-size:24px;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:20px;}
  .step-num{width:48px;height:48px;min-width:48px;font-size:18px;}
  .faq-question{padding:18px 20px;font-size:14px;}
  .footer-bottom{flex-direction:column;text-align:center;}
}