:root {
    --c-primary: #0d7377;
    --c-primary-dark: #095456;
    --c-primary-light: #e6f5f5;
    --c-primary-50: #f0faf9;
    --c-accent: #ff6b35;
    --c-accent-hover: #e85a28;
    --c-accent-light: #fff3ee;
    --c-dark: #1a1a2e;
    --c-dark-light: #2d2d44;
    --c-text: #2c3e50;
    --c-text-light: #5a6c7d;
    --c-text-muted: #8e9bae;
    --c-border: #e2e8f0;
    --c-bg: #f7f9fc;
    --c-bg-alt: #eef2f7;
    --c-white: #ffffff;
    --c-success: #27ae60;
    --c-warning: #f39c12;
    --c-error: #e74c3c;
    --shadow-xs: 0 1px 2px rgba(0,0,0,.05);
    --shadow-sm: 0 2px 8px rgba(0,0,0,.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,.1);
    --shadow-xl: 0 16px 48px rgba(0,0,0,.12);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    --ease: cubic-bezier(.4,0,.2,1);
    --duration: .3s;
    --font: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

.icon{display:inline-block;width:1em;height:1em;vertical-align:middle;flex-shrink:0}
.icon[stroke]{stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.icon[fill]{fill:currentColor}

html{scroll-behavior:smooth;font-size:16px;-webkit-text-size-adjust:100%}

body{font-family:var(--font);color:var(--c-text);background:var(--c-bg);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px}

.hidden{display:none!important}

.top-bar{background:var(--c-dark);padding:10px 0;position:fixed;top:0;left:0;right:0;z-index:100}
.top-bar__title{color:var(--c-white);font-size:.875rem;font-weight:600;text-align:center;letter-spacing:.5px;margin:0}

.nav{background:var(--c-white);padding:0;position:fixed;top:38px;left:0;right:0;z-index:99;box-shadow:var(--shadow-sm);transition:box-shadow var(--duration) var(--ease)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav__brand{display:flex;align-items:center;gap:8px;background:none;border:none;cursor:pointer;padding:4px 8px;border-radius:var(--radius-sm);font-family:var(--font);transition:opacity var(--duration) var(--ease)}
.nav__brand:hover{opacity:.8}
.nav__brand:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.nav__brand-icon{width:24px;height:24px;color:var(--c-accent)}
.nav__brand-text{font-size:1.125rem;font-weight:700;color:var(--c-dark);line-height:1}
.nav__links{display:flex;gap:32px}
.nav__links a{color:var(--c-text-light);text-decoration:none;font-size:.9375rem;font-weight:500;padding:4px 0;position:relative;transition:color var(--duration) var(--ease)}
.nav__links a::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;background:var(--c-primary);border-radius:1px;transition:width var(--duration) var(--ease)}
.nav__links a:hover{color:var(--c-primary)}
.nav__links a:hover::after{width:100%}
.nav__links a:focus-visible{outline:2px solid var(--c-primary);outline-offset:4px;border-radius:2px}
.nav__toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;position:relative;width:40px;height:40px;border-radius:var(--radius-sm)}
.nav__toggle:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.nav__toggle .icon{width:22px;height:22px;color:var(--c-dark)}
.nav__toggle .icon--close{display:none}
.nav.open .nav__toggle .icon--menu{display:none}
.nav.open .nav__toggle .icon--close{display:inline-block}

.hero{background:linear-gradient(135deg,var(--c-primary) 0%,#0a8f8f 40%,var(--c-primary-dark) 100%);padding:160px 0 80px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 70% 30%,rgba(255,255,255,.08) 0%,transparent 60%)}
.hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:80px;background:linear-gradient(to top,var(--c-bg),transparent)}
.hero__inner{display:grid;grid-template-columns:1fr 380px;gap:60px;align-items:center;position:relative;z-index:1}
.hero__badge{display:inline-block;background:rgba(255,255,255,.15);color:var(--c-white);font-size:.8125rem;font-weight:600;padding:6px 16px;border-radius:var(--radius-full);margin-bottom:20px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.2)}
.hero__title{color:var(--c-white);font-size:clamp(2rem,4vw,3.25rem);font-weight:800;line-height:1.2;margin-bottom:16px;letter-spacing:-.5px}
.hero__desc{color:rgba(255,255,255,.85);font-size:1.0625rem;margin-bottom:28px;line-height:1.7}
.hero__tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.hero__tag{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.12);color:var(--c-white);padding:8px 16px;border-radius:var(--radius-full);font-size:.875rem;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.15)}
.hero__tag .icon{width:16px;height:16px}
.hero__cta{margin-top:8px}
.hero__visual{display:flex;justify-content:center}
.hero__card{background:rgba(255,255,255,.1);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-xl);overflow:hidden;width:100%;max-width:340px}
.hero__card-header{display:flex;align-items:center;gap:8px;padding:20px 24px;background:rgba(255,255,255,.08);color:var(--c-white);font-size:.9375rem;font-weight:600}
.hero__card-header .icon{width:20px;height:20px}
.hero__card-body{display:grid;grid-template-columns:repeat(3,1fr);gap:0;padding:0}
.hero__card-stat{display:flex;flex-direction:column;align-items:center;padding:24px 12px;border-right:1px solid rgba(255,255,255,.1)}
.hero__card-stat:last-child{border-right:none}
.hero__card-stat strong{color:var(--c-white);font-size:1.25rem;font-weight:800}
.hero__card-stat span{color:rgba(255,255,255,.7);font-size:.75rem;margin-top:4px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font);font-weight:600;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--duration) var(--ease);text-decoration:none;line-height:1.5;padding:12px 28px;font-size:.9375rem}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px}
.btn__icon{width:18px;height:18px;transition:transform var(--duration) var(--ease)}
.btn:hover .btn__icon{transform:translateX(4px)}
.btn--primary{background:var(--c-primary);color:var(--c-white);box-shadow:0 4px 14px rgba(13,115,119,.3)}
.btn--primary:hover{background:var(--c-primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(13,115,119,.4)}
.btn--accent{background:var(--c-accent);color:var(--c-white);box-shadow:0 4px 14px rgba(255,107,53,.3)}
.btn--accent:hover{background:var(--c-accent-hover);transform:translateY(-2px);box-shadow:0 6px 20px rgba(255,107,53,.4)}
.btn--white{background:var(--c-white);color:var(--c-primary);box-shadow:0 4px 14px rgba(0,0,0,.1)}
.btn--white:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.15)}
.btn--lg{padding:16px 36px;font-size:1.0625rem;border-radius:var(--radius-lg)}
.btn--block{width:100%}
.btn:disabled{background:var(--c-text-muted);cursor:not-allowed;box-shadow:none;transform:none!important}

.query{padding:80px 0;background:var(--c-white)}
.query__grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.query__form-card,.query__tips-card{border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--c-border);box-shadow:var(--shadow-sm)}
.query__form-header{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));color:var(--c-white);padding:20px 28px;display:flex;align-items:center;gap:10px;font-size:1.125rem;font-weight:700}
.query__form-header .icon{width:22px;height:22px}
.query__form-body{padding:32px 28px}
.query__tips-header{background:linear-gradient(135deg,var(--c-success),#1e8449);color:var(--c-white);padding:20px 28px;display:flex;align-items:center;gap:10px;font-size:1.125rem;font-weight:700}
.query__tips-header .icon{width:22px;height:22px}

.field{margin-bottom:24px}
.field__label{display:block;font-size:.9375rem;font-weight:600;color:var(--c-text);margin-bottom:10px}
.field__select{width:100%;padding:14px 44px 14px 16px;font-size:1rem;font-family:var(--font);border:2px solid var(--c-border);border-radius:var(--radius-md);background:var(--c-white);color:var(--c-text);cursor:pointer;transition:all var(--duration) var(--ease);appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235a6c7d' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}
.field__select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px var(--c-primary-light)}
.field__select:hover{border-color:var(--c-primary)}

.countdown{margin-top:24px;text-align:center;padding:24px;background:var(--c-primary-light);border-radius:var(--radius-md);animation:fadeUp .4s var(--ease)}
.countdown__ring{width:72px;height:72px;border:3px solid var(--c-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 12px;animation:pulse 1s ease infinite}
.countdown__num{font-size:1.75rem;font-weight:800;color:var(--c-primary);transition:transform .2s var(--ease)}
.countdown__text{color:var(--c-text);font-size:.9375rem}

.tips{list-style:none;padding:24px 28px}
.tips__item{display:flex;align-items:flex-start;gap:12px;padding:14px 0;border-bottom:1px solid var(--c-border)}
.tips__item:last-child{border-bottom:none}
.tips__icon{width:20px;height:20px;color:var(--c-primary);flex-shrink:0;margin-top:3px}
.tips__item span{font-size:.9rem;color:var(--c-text-light);line-height:1.7}

.section-head{text-align:center;margin-bottom:48px}
.section-head__title{font-size:clamp(1.5rem,3vw,2.125rem);font-weight:800;color:var(--c-dark);margin-bottom:8px}
.section-head__sub{font-size:1rem;color:var(--c-text-muted);font-weight:400}

.prospect{padding:80px 0;background:var(--c-bg)}
.prospect__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.prospect__card{background:var(--c-white);padding:36px 24px;border-radius:var(--radius-xl);text-align:center;border:1px solid var(--c-border);box-shadow:var(--shadow-xs);transition:all var(--duration) var(--ease)}
.prospect__card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--c-primary)}
.prospect__card-icon{width:56px;height:56px;border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:center;margin:0 auto 20px}
.prospect__card-icon .icon{width:28px;height:28px}
.prospect__card-icon--1{background:#e8f8f8;color:var(--c-primary)}
.prospect__card-icon--2{background:var(--c-accent-light);color:var(--c-accent)}
.prospect__card-icon--3{background:#fef3e2;color:var(--c-warning)}
.prospect__card-icon--4{background:#e8f5e9;color:var(--c-success)}
.prospect__card-title{font-size:1.0625rem;font-weight:700;color:var(--c-dark);margin-bottom:10px}
.prospect__card-desc{font-size:.875rem;color:var(--c-text-light);line-height:1.7}

.schedule{padding:80px 0;background:var(--c-white)}
.schedule__timeline{max-width:680px;margin:0 auto;position:relative}
.schedule__timeline::before{content:'';position:absolute;left:23px;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--c-primary),var(--c-accent));border-radius:3px}
.schedule__item{display:flex;align-items:flex-start;gap:24px;padding:16px 0;position:relative}
.schedule__dot{width:16px;height:16px;background:var(--c-primary);border-radius:50%;border:3px solid var(--c-white);box-shadow:0 0 0 3px var(--c-primary);flex-shrink:0;margin-top:8px;margin-left:15px}
.schedule__card{flex:1;background:var(--c-bg);padding:20px 24px;border-radius:var(--radius-md);border:1px solid var(--c-border);transition:all var(--duration) var(--ease)}
.schedule__card:hover{box-shadow:var(--shadow-md);border-color:var(--c-primary);background:var(--c-white)}
.schedule__card-title{font-size:1.0625rem;font-weight:700;color:var(--c-dark);margin-bottom:6px}
.schedule__card-desc{font-size:.875rem;color:var(--c-text-light)}

.value{padding:80px 0;background:var(--c-bg)}
.value__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.value__card{background:var(--c-white);padding:28px;border-radius:var(--radius-xl);border:1px solid var(--c-border);box-shadow:var(--shadow-xs);display:flex;gap:20px;align-items:flex-start;transition:all var(--duration) var(--ease)}
.value__card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--c-primary)}
.value__card-num{font-size:2rem;font-weight:800;color:var(--c-primary);opacity:.2;line-height:1;flex-shrink:0}
.value__card-body h4{font-size:1rem;font-weight:700;color:var(--c-dark);margin-bottom:6px}
.value__card-body p{font-size:.875rem;color:var(--c-text-light);line-height:1.7}

.cases{padding:80px 0;background:var(--c-white)}
.cases__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cases__card{background:var(--c-bg);padding:36px 28px;border-radius:var(--radius-xl);text-align:center;border:1px solid var(--c-border);transition:all var(--duration) var(--ease)}
.cases__card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);background:var(--c-white)}
.cases__avatar{width:64px;height:64px;background:linear-gradient(135deg,var(--c-primary),var(--c-accent));color:var(--c-white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.375rem;font-weight:700;margin:0 auto 16px}
.cases__name{font-size:1.0625rem;font-weight:700;color:var(--c-dark);margin-bottom:4px}
.cases__job{font-size:.8125rem;color:var(--c-primary);font-weight:600;margin-bottom:14px}
.cases__desc{font-size:.875rem;color:var(--c-text-light);line-height:1.7;font-style:italic}

.cta-banner{padding:0;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark))}
.cta-banner__inner{text-align:center;padding:64px 24px}
.cta-banner__title{color:var(--c-white);font-size:clamp(1.5rem,3vw,2rem);font-weight:800;margin-bottom:12px}
.cta-banner__desc{color:rgba(255,255,255,.85);font-size:1rem;margin-bottom:28px}

.footer{background:var(--c-dark);color:var(--c-white);padding:48px 0 24px}
.footer__top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer__brand{display:flex;align-items:center;gap:8px}
.footer__brand-icon{width:20px;height:20px;color:var(--c-accent)}
.footer__brand-text{font-size:1rem;font-weight:700}
.footer__links{display:flex;gap:24px}
.footer__links a{color:rgba(255,255,255,.6);text-decoration:none;font-size:.875rem;transition:color var(--duration) var(--ease);cursor:pointer}
.footer__links a:hover{color:var(--c-white)}
.footer__contact{color:rgba(255,255,255,.6);font-size:.875rem}
.footer__bottom{text-align:center;padding-top:24px;color:rgba(255,255,255,.4);font-size:.8125rem}
.footer__bottom p{margin:4px 0}

@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.06)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

@media(max-width:1024px){
    .prospect__grid{grid-template-columns:repeat(2,1fr)}
    .value__grid{grid-template-columns:repeat(2,1fr)}
    .hero__inner{grid-template-columns:1fr;gap:40px}
    .hero__visual{display:none}
}

@media(max-width:768px){
    .top-bar__title{font-size:.75rem}
    .nav__links{display:none;position:fixed;top:102px;left:0;right:0;background:var(--c-white);flex-direction:column;padding:20px 24px;box-shadow:var(--shadow-lg);gap:0;z-index:98}
    .nav__links a{padding:14px 0;border-bottom:1px solid var(--c-border);font-size:1rem}
    .nav__links a::after{display:none}
    .nav.open .nav__links{display:flex}
    .nav__toggle{display:flex;align-items:center;justify-content:center}
    .hero{padding:140px 0 60px}
    .hero__title{font-size:1.75rem}
    .hero__desc{font-size:.9375rem}
    .hero__tags{gap:8px}
    .hero__tag{font-size:.8125rem;padding:6px 12px}
    .query__grid{grid-template-columns:1fr}
    .prospect__grid{grid-template-columns:1fr}
    .value__grid{grid-template-columns:1fr}
    .cases__grid{grid-template-columns:1fr}
    .section-head__title{font-size:1.5rem}
    .query,.prospect,.schedule,.value,.cases{padding:56px 0}
    .footer__top{flex-direction:column;text-align:center}
    .footer__links{flex-wrap:wrap;justify-content:center}
}

@media(max-width:480px){
    .hero__title{font-size:1.5rem}
    .query__form-body{padding:24px 20px}
    .tips{padding:20px}
    .value__card{flex-direction:column;text-align:center}
    .value__card-num{font-size:2.5rem}
    .btn--lg{padding:14px 28px;font-size:1rem}
}