/* ============================================================
   中日先端医疗官网 · 设计系统 CSS v1.0
   配色：主题蓝 #7bc0dc | 深蓝 #2E89AD | 淡蓝 #E3F4FA | 暖象牙白 #FAF8F5
         治愈绿 #3DAA78 | 金色 #C9A96E
   ============================================================ */

:root {
  --primary-deep:   #2E89AD;   /* 主题深蓝：标题、页脚 */
  --primary-mid:    #7bc0dc;   /* 主题色：按钮、链接、高亮 */
  --primary-light:  #E3F4FA;   /* 淡蓝：卡片背景、表格交替行 */
  --bg-warm:        #FAF8F5;
  --color-heal:     #3DAA78;
  --color-gold:     #C9A96E;
  --color-red:      #C0392B;
  --text-deep:      #1A2B3C;
  --text-mid:       #4A5568;
  --text-light:     #9CA3AF;
  --border:         #E5E7EB;
  --border-mid:     #D1D5DB;
  --shadow-card:    0 2px 8px rgba(0,0,0,0.07);
  --shadow-hover:   0 12px 32px rgba(0,0,0,0.13);
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;
  --radius-xl:  20px;
  --space-xs:  8px; --space-sm: 16px; --space-md: 24px;
  --space-lg:  32px; --space-xl: 48px; --space-2xl: 64px; --space-3xl: 80px;
  --container: 1200px;
  --font-zh: 'Source Han Sans CN','PingFang SC','Microsoft YaHei',sans-serif;
  --font-en: 'Montserrat','Inter',sans-serif;
  --font-mono: 'Roboto Mono',monospace;
  --ease: cubic-bezier(0.4,0,0.2,1);
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-zh);background:var(--bg-warm);color:var(--text-deep);line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{border:none;background:none;font-family:inherit;cursor:pointer}

/* ── 容器 ── */
.container{max-width:var(--container);margin:0 auto;padding:0 40px}
@media(max-width:768px){.container{padding:0 20px}}

/* ── 文字 ── */
.h1{font-size:clamp(30px,5vw,52px);font-weight:800;line-height:1.15;color:var(--primary-deep);letter-spacing:-0.5px}
.h2{font-size:clamp(24px,3.5vw,36px);font-weight:700;line-height:1.25;color:var(--primary-deep)}
.h3{font-size:clamp(18px,2.5vw,24px);font-weight:600;line-height:1.35;color:var(--text-deep)}
.h4{font-size:18px;font-weight:600;color:var(--text-deep)}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;color:var(--primary-mid);margin-bottom:12px}
.section-title{font-size:clamp(26px,3.5vw,38px);font-weight:700;color:var(--primary-deep);line-height:1.25;margin-bottom:14px}
.section-sub{font-size:16px;color:var(--text-mid);line-height:1.7;max-width:560px}
.text-gold{color:var(--color-gold)}
.text-primary{color:var(--primary-mid)}
.text-heal{color:var(--color-heal)}
.text-center{text-align:center}

/* ── 区块 ── */
.section{padding:96px 0}
.section--sm{padding:64px 0}
.section--dark{background:var(--primary-deep);color:#fff}
.section--dark .section-title{color:#fff}
.section--dark .section-sub{color:rgba(255,255,255,0.65)}
@media(max-width:768px){.section{padding:64px 0}.section--sm{padding:48px 0}}

/* ── 按钮 ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;font-size:15px;font-weight:600;font-family:var(--font-zh);border-radius:var(--radius-sm);transition:all 0.22s var(--ease);cursor:pointer;border:2px solid transparent;white-space:nowrap}
.btn--primary{background:var(--primary-mid);color:#fff;border-color:var(--primary-mid)}
.btn--primary:hover{background:#1A6BB5;border-color:#1A6BB5;transform:translateY(-2px);box-shadow:0 8px 24px rgba(41,121,200,0.38)}
.btn--heal{background:var(--color-heal);color:#fff;border-color:var(--color-heal)}
.btn--heal:hover{background:#2d8a5e;border-color:#2d8a5e;transform:translateY(-2px);box-shadow:0 8px 24px rgba(61,170,120,0.38)}
.btn--outline{background:transparent;color:var(--primary-mid);border-color:var(--primary-mid)}
.btn--outline:hover{background:var(--primary-light);transform:translateY(-2px)}
.btn--outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,0.7)}
.btn--outline-white:hover{background:rgba(255,255,255,0.12);border-color:#fff}
.btn--white{background:#fff;color:var(--primary-deep);border-color:#fff}
.btn--white:hover{background:var(--primary-light);transform:translateY(-2px)}
.btn--lg{padding:16px 42px;font-size:17px}
.btn--sm{padding:9px 20px;font-size:13px}

/* ── 卡片 ── */
.card{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:var(--space-md);transition:all 0.28s var(--ease);border:1px solid rgba(0,0,0,0.04)}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-5px)}
.card__icon{width:56px;height:56px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;margin-bottom:18px;font-size:26px;flex-shrink:0}
.card__title{font-size:20px;font-weight:700;color:var(--text-deep);margin-bottom:10px}
.card--fast .card__title{font-size:24px;font-weight:800}

.card__desc{font-size:15px;color:var(--text-mid);line-height:1.75}
.card__link{font-size:14px;font-weight:600;color:var(--primary-mid);display:inline-flex;align-items:center;gap:5px;margin-top:14px}
.card__link:hover{text-decoration:underline}

/* ── 标签/徽章 ── */
.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 12px;font-size:12px;font-weight:600;border-radius:20px;letter-spacing:0.3px}
.badge--blue{background:var(--primary-light);color:var(--primary-deep)}
.badge--green{background:#D4EDDF;color:#16683A}
.badge--gold{background:#F5EDD8;color:#7A5C1E}
.badge--red{background:#FDECEA;color:#9B1C0F}
.badge--gray{background:#F0F1F3;color:var(--text-mid)}
.badge--white{background:rgba(255,255,255,0.15);color:#fff}

/* ── 导航 ── */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(250,248,245,0.95);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(0,0,0,0.06);transition:all 0.2s var(--ease)}
.navbar__inner{max-width:var(--container);margin:0 auto;padding:0 40px;height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px}
@media(max-width:768px){.navbar__inner{padding:0 20px;height:62px}}

/* Logo */
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;text-decoration:none}
.logo__mark{width:40px;height:40px;border-radius:9px;background:linear-gradient(135deg,var(--primary-deep) 0%,var(--primary-mid) 100%);display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;flex-shrink:0}
.logo__mark::after{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(45deg,transparent 30%,rgba(255,255,255,0.15) 50%,transparent 70%);animation:logoShine 3s ease-in-out infinite}
@keyframes logoShine{0%,100%{transform:translateX(-100%)}50%{transform:translateX(100%)}}
.logo__mark svg{width:22px;height:22px;fill:#fff}
.logo__text{display:flex;flex-direction:column;line-height:1.15}
.logo__name{font-size:17px;font-weight:800;color:var(--primary-deep);letter-spacing:1px}
.logo__sub{font-size:10px;font-weight:500;color:var(--text-mid);letter-spacing:2px;text-transform:uppercase}

.navbar__links{display:flex;align-items:center;gap:2px;flex:1;justify-content:center}
.nav-link{padding:8px 14px;font-size:14px;font-weight:500;color:var(--text-mid);border-radius:var(--radius-sm);transition:all 0.18s var(--ease);white-space:nowrap}
.nav-link:hover,.nav-link.active{color:var(--primary-mid);background:var(--primary-light)}
.navbar__actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.hamburger{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}
.hamburger span{display:block;width:22px;height:2px;background:var(--primary-deep);border-radius:2px;transition:all 0.2s var(--ease)}
@media(max-width:1024px){
  .navbar__links .nav-link:nth-child(n+6){display:none}
}
@media(max-width:768px){
  .navbar__links{display:none;position:absolute;top:62px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 20px;gap:4px;border-bottom:1px solid var(--border);box-shadow:0 8px 24px rgba(0,0,0,0.1)}
  .navbar__links.open{display:flex}
  .nav-link{padding:12px 16px;font-size:16px;width:100%}
  .hamburger{display:flex}
  .navbar__actions .btn{display:none}
}

/* ── Hero ── */
.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding-top:70px}
.hero--home{background:linear-gradient(150deg,#5BA8C8 0%,#7bc0dc 55%,#a8dff0 100%)}
.hero__bg{position:absolute;inset:0;overflow:hidden}
.hero__bg-shape{position:absolute;border-radius:50%;filter:blur(80px);opacity:0.15}
.hero__bg-shape--1{width:600px;height:600px;background:var(--color-heal);top:-200px;right:-100px;animation:floatBg 8s ease-in-out infinite}
.hero__bg-shape--2{width:400px;height:400px;background:var(--color-gold);bottom:-150px;left:-80px;animation:floatBg 10s ease-in-out infinite reverse}
@keyframes floatBg{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-30px) scale(1.05)}}
.hero__inner{position:relative;z-index:2;max-width:var(--container);margin:0 auto;padding:80px 40px;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
@media(max-width:1024px){.hero__inner{grid-template-columns:1fr;gap:40px;text-align:center;padding:60px 40px}}
@media(max-width:768px){.hero__inner{padding:48px 20px}}
.hero__badge{margin-bottom:20px;display:inline-flex}
.hero__title{font-size:clamp(34px,5.5vw,58px);font-weight:800;color:#fff;line-height:1.15;letter-spacing:-1px;margin-bottom:20px}
.hero__title em{font-style:normal;color:var(--color-gold)}
.hero__sub{font-size:clamp(15px,2vw,18px);color:rgba(255,255,255,0.72);line-height:1.8;max-width:520px;margin-bottom:36px}
@media(max-width:1024px){.hero__sub{margin:0 auto 36px}}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap}
@media(max-width:1024px){.hero__actions{justify-content:center}}
.hero__visual{position:relative;display:flex;align-items:center;justify-content:center}
.hero__img-box{width:110%;aspect-ratio:3/2;border-radius:var(--radius-xl);overflow:hidden;box-shadow:0 32px 80px rgba(0,0,0,0.4);border:4px solid rgba(255,255,255,0.1)}
.hero__stats{display:flex;gap:24px;margin-top:48px;padding-top:36px;border-top:1px solid rgba(255,255,255,0.15)}
@media(max-width:1024px){.hero__stats{justify-content:center}}
.hero__stat{text-align:left}
@media(max-width:1024px){.hero__stat{text-align:center}}
.hero__stat-num{font-size:32px;font-weight:800;color:#fff;font-family:var(--font-mono);line-height:1}
.hero__stat-label{font-size:13px;color:rgba(255,255,255,0.55);margin-top:4px}

/* ── 品牌背书条 ── */
.cred-bar{background:var(--primary-deep);padding:20px 0;overflow:hidden}
.cred-bar__inner{max-width:var(--container);margin:0 auto;padding:0 40px;display:flex;align-items:center;justify-content:center;gap:40px;flex-wrap:wrap}
@media(max-width:768px){.cred-bar__inner{padding:0 20px;gap:20px}}
.cred-item{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:500;color:rgba(255,255,255,0.8);white-space:nowrap}
.cred-dot{width:6px;height:6px;border-radius:50%;background:var(--color-gold);flex-shrink:0}

/* ── 网格 ── */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
@media(max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

/* ── 分隔线 ── */
.divider{height:1px;background:var(--border);margin:var(--space-xl) 0}
.gold-line{width:48px;height:3px;background:var(--color-gold);border-radius:2px;margin:var(--space-md) 0}

/* ── 数字 ── */
.stat-num{font-size:clamp(42px,7vw,72px);font-weight:800;color:var(--color-gold);font-family:var(--font-mono);line-height:1;display:block}
.stat-lbl{font-size:14px;color:var(--text-mid);margin-top:6px;font-weight:500}

/* ── FAQ ── */
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:first-child{border-top:1px solid var(--border)}
.faq-trigger{width:100%;padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:16px;font-size:16px;font-weight:600;color:var(--text-deep);text-align:left;cursor:pointer;background:none;border:none;font-family:var(--font-zh)}
.faq-trigger:hover{color:var(--primary-mid)}
.faq-icon{width:26px;height:26px;border-radius:50%;border:2px solid var(--border-mid);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all 0.22s var(--ease);font-size:13px;color:var(--text-light)}
.faq-item.open .faq-icon{background:var(--primary-mid);border-color:var(--primary-mid);color:#fff;transform:rotate(45deg)}
.faq-body{max-height:0;overflow:hidden;transition:max-height 0.3s var(--ease)}
.faq-item.open .faq-body{max-height:500px}
.faq-content{padding:0 0 20px;font-size:15px;color:var(--text-mid);line-height:1.85}

/* ── 表单 ── */
.fg{display:flex;flex-direction:column;gap:6px}
.f-label{font-size:14px;font-weight:500;color:var(--text-mid)}
.f-input,.f-textarea,.f-select{width:100%;padding:13px 16px;font-size:15px;font-family:var(--font-zh);color:var(--text-deep);background:#fff;border:1.5px solid var(--border-mid);border-radius:var(--radius-sm);transition:border-color 0.18s,box-shadow 0.18s;outline:none}
.f-input:focus,.f-textarea:focus,.f-select:focus{border-color:var(--primary-mid);box-shadow:0 0 0 3px rgba(41,121,200,0.1)}
.f-input::placeholder,.f-textarea::placeholder{color:var(--text-light)}
.f-textarea{resize:vertical;min-height:110px}
.f-upload{display:flex;align-items:center;gap:12px;padding:18px;border:1.5px dashed var(--border-mid);border-radius:var(--radius-sm);cursor:pointer;font-size:14px;color:var(--text-mid);background:var(--primary-light);transition:all 0.18s}
.f-upload:hover{border-color:var(--primary-mid);color:var(--primary-mid)}

/* ── 步骤条 ── */
.step{position:relative;display:flex;gap:20px;align-items:flex-start}
.step__num{width:48px;height:48px;border-radius:50%;background:var(--primary-deep);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;font-family:var(--font-mono);flex-shrink:0;position:relative;z-index:1}
.step__body{flex:1;padding-top:6px}
.step__title{font-size:17px;font-weight:700;color:var(--text-deep);margin-bottom:6px}
.step__desc{font-size:14px;color:var(--text-mid);line-height:1.75}

/* ── 流程时间轴 ── */
.timeline{display:flex;gap:0;overflow-x:auto;padding-bottom:16px;scrollbar-width:thin;scrollbar-color:var(--border) transparent}
.timeline__item{min-width:140px;flex:1;position:relative;padding:0 12px;text-align:center}
.timeline__item::before{content:'';position:absolute;top:22px;left:50%;right:-50%;height:2px;background:var(--border-mid)}
.timeline__item:last-child::before{display:none}
.timeline__dot{width:46px;height:46px;border-radius:50%;background:#fff;border:3px solid var(--primary-mid);display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:13px;font-weight:700;color:var(--primary-deep);position:relative;z-index:1;font-family:var(--font-mono)}
.timeline__label{font-size:12px;font-weight:600;color:var(--text-mid);line-height:1.4}
.timeline__sub{font-size:11px;color:var(--text-light);margin-top:3px}

/* ── 专家卡片 ── */
.expert-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);transition:all 0.28s var(--ease);border:1px solid rgba(0,0,0,0.04)}
.expert-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-5px)}
.expert-card__img{width:100%;aspect-ratio:1;object-fit:cover;display:block}
.expert-card__body{padding:20px}
.expert-card__flag{font-size:20px;margin-bottom:8px}
.expert-card__name{font-size:18px;font-weight:700;color:var(--text-deep);margin-bottom:4px}
.expert-card__title{font-size:13px;color:var(--primary-mid);font-weight:600;margin-bottom:8px}
.expert-card__desc{font-size:13px;color:var(--text-mid);line-height:1.7}

/* ── 医院卡片 ── */
.hospital-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);transition:all 0.28s var(--ease);border:1px solid rgba(0,0,0,0.04);display:flex;flex-direction:column}
.hospital-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.hospital-card__img{width:100%;height:160px;object-fit:cover}
.hospital-card__body{flex:1;padding:20px}
.hospital-card__name{font-size:16px;font-weight:700;color:var(--text-deep);margin-bottom:6px}
.hospital-card__spec{font-size:13px;color:var(--primary-mid);font-weight:600;margin-bottom:8px}
.hospital-card__desc{font-size:13px;color:var(--text-mid);line-height:1.7}
.hospital-card__footer{padding:14px 20px}

/* ── 页脚 ── */
.footer{background:var(--primary-deep);color:rgba(255,255,255,0.7);padding:72px 0 32px}
.footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:56px}
@media(max-width:1024px){.footer__grid{grid-template-columns:1fr 1fr;gap:36px}}
@media(max-width:768px){.footer__grid{grid-template-columns:1fr;gap:32px}}
.footer__logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800;margin-bottom:14px}
.footer__desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,0.5);margin-bottom:20px}
.footer__col-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer__links{display:flex;flex-direction:column;gap:10px}
.footer__link{font-size:14px;color:rgba(255,255,255,0.55);transition:color 0.18s}
.footer__link:hover{color:#fff}
.footer__bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:24px;display:flex;justify-content:space-between;align-items:center;font-size:13px;color:rgba(255,255,255,0.35);flex-wrap:wrap;gap:12px}
@media(max-width:768px){.footer__bottom{justify-content:center;text-align:center}}

/* ── 占位图 ── */
.ph{width:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:8px;background:linear-gradient(135deg,#e8f2fc 0%,#d5e4f5 100%);color:var(--primary-mid);font-size:13px;font-weight:500;border-radius:inherit}
.ph--hero{height:480px;border-radius:var(--radius-xl)}
.ph--card{height:180px;border-radius:var(--radius-md)}
.ph--sq{aspect-ratio:1}
.ph--tall{height:360px}
.ph--sm{height:140px}
.ph--wide{height:220px}
.ph svg{width:32px;height:32px;fill:currentColor;opacity:0.5}
.ph__label{font-size:12px;color:var(--text-light);font-weight:400}

/* ── CTA区块 ── */
.cta-block{background:linear-gradient(135deg,var(--primary-deep) 0%,#1a5fa0 100%);padding:80px 0;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-block__bg{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")}
.cta-block__inner{position:relative;z-index:1}
.cta-block .section-title{color:#fff}
.cta-block p{color:rgba(255,255,255,0.65);margin-bottom:36px;font-size:17px}

/* ── 表格 ── */
.compare-table{width:100%;border-collapse:collapse;font-size:15px}
.compare-table th,.compare-table td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--border)}
.compare-table th{background:var(--primary-deep);color:#fff;font-weight:700;font-size:14px}
.compare-table th:first-child{background:var(--text-deep)}
.compare-table tr:nth-child(even) td{background:var(--primary-light)}
.compare-table td:first-child{font-weight:600;color:var(--text-deep)}
.compare-table .highlight td{background:#D4EDDF!important;font-weight:700;color:#16683A!important}

/* ── 动效 ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.anim{opacity:0}
.anim.visible{animation:fadeUp 0.6s var(--ease) forwards}
.anim-delay-1{animation-delay:0.1s}
.anim-delay-2{animation-delay:0.2s}
.anim-delay-3{animation-delay:0.3s}
.anim-delay-4{animation-delay:0.4s}

/* ── 工具 ── */
.flex{display:flex}
.flex-center{display:flex;align-items:center;justify-content:center}
.flex-between{display:flex;align-items:center;justify-content:space-between}
.flex-col{display:flex;flex-direction:column}
.flex-wrap{flex-wrap:wrap}
.gap-xs{gap:8px}.gap-sm{gap:16px}.gap-md{gap:24px}.gap-lg{gap:32px}
.mt-sm{margin-top:12px}.mt-md{margin-top:20px}.mt-lg{margin-top:32px}.mt-xl{margin-top:48px}
.mb-sm{margin-bottom:12px}.mb-md{margin-bottom:20px}.mb-lg{margin-bottom:32px}.mb-xl{margin-bottom:48px}
.w-full{width:100%}
.relative{position:relative}
.overflow-hidden{overflow:hidden}