/* ==========================================================================
   有安财税（深圳）有限公司 · 官网样式表
   单文件设计系统：变量 → 基础 → 布局 → 组件 → 区块 → 响应式
   无外部字体 / 无 CDN 依赖，纯本地资源
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root{
  --navy:#0f2740;
  --navy-2:#16385a;
  --navy-3:#1d4a75;
  --blue:#1a5c96;
  --blue-soft:#eaf1f8;
  --gold:#a8842f;
  --gold-soft:#f8f1e0;

  --ink:#1b2430;
  --ink-2:#465464;
  --ink-3:#78848f;

  --line:#e3e8ee;
  --line-2:#eef2f6;

  --white:#ffffff;
  --bg-soft:#f6f8fa;

  --radius:10px;
  --radius-sm:6px;
  --wrap:1120px;
  --wrap-narrow:860px;

  --shadow-sm:0 1px 2px rgba(15,39,64,.06);
  --shadow-md:0 8px 24px rgba(15,39,64,.08);
  --shadow-lg:0 18px 44px rgba(15,39,64,.12);

  --header-h:68px;
}

/* ---------- 2. 基础重置 ---------- */
*,*::before,*::after{box-sizing:border-box;}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:calc(var(--header-h) + 16px);
}

body{
  margin:0;
  background:var(--white);
  color:var(--ink-2);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:15px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

h1,h2,h3,h4{
  margin:0;
  color:var(--ink);
  line-height:1.35;
  font-weight:700;
  letter-spacing:.01em;
}
h1{font-size:clamp(27px,4vw,42px);}
h2{font-size:clamp(22px,2.7vw,30px);}
h3{font-size:17px;}
h4{font-size:15px;}

p{margin:0;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
dl,dd{margin:0;}
img{max-width:100%;height:auto;display:block;}
button{font:inherit;}

:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:3px;
  border-radius:3px;
}

/* 屏幕阅读器专用文本 */
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

/* 跳转到主内容（键盘无障碍） */
.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--navy);color:#fff;padding:10px 18px;border-radius:0 0 6px 0;
  font-size:14px;
}
.skip-link:focus{left:0;}

/* ---------- 3. 布局工具 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}
.wrap--narrow{max-width:var(--wrap-narrow);}

.section{padding:76px 0;}
.section--soft{
  background:var(--bg-soft);
  border-top:1px solid var(--line-2);
  border-bottom:1px solid var(--line-2);
}
.section--tight{padding:56px 0;}

/* 区块标题 */
.sec-head{max-width:46em;margin-bottom:40px;}
.sec-head .eyebrow{
  display:block;font-size:11.5px;font-weight:600;letter-spacing:.24em;
  color:var(--gold);margin-bottom:10px;text-transform:uppercase;
}
.sec-head h2{margin-bottom:0;}
.sec-head .desc{margin-top:13px;font-size:14.5px;color:var(--ink-2);}
.sec-head::after{
  content:"";display:block;width:44px;height:3px;border-radius:2px;
  background:var(--navy);margin-top:18px;
}
.sec-head--center{max-width:none;text-align:center;}
.sec-head--center::after{margin-left:auto;margin-right:auto;}
.sec-head--center .desc{margin-left:auto;margin-right:auto;max-width:40em;}

/* ---------- 4. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-sm);
  font-size:14.5px;font-weight:600;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:transform .15s,box-shadow .15s,background .15s,color .15s;
}
.btn svg{width:16px;height:16px;flex:0 0 auto;}
.btn--primary{background:var(--navy);color:#fff;box-shadow:var(--shadow-sm);}
.btn--primary:hover{background:var(--navy-2);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn--ghost{background:transparent;color:var(--navy);border-color:#c9d4de;}
.btn--ghost:hover{background:var(--blue-soft);border-color:#aebecd;}
.btn--light{background:#fff;color:var(--navy);box-shadow:var(--shadow-md);}
.btn--light:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg);}
.btn--on-dark{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.34);}
.btn--on-dark:hover{background:rgba(255,255,255,.18);}
.btn--on-dark:focus-visible,
.btn--light:focus-visible{outline-color:#fff;}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;}

/* 文字链 */
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--blue);
}
.link-arrow svg{width:14px;height:14px;transition:transform .15s;}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 5. 站点头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.95);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;height:var(--header-h);
}
.brand{display:flex;align-items:center;gap:11px;min-width:0;}
.brand-mark{
  flex:0 0 auto;width:38px;height:38px;border-radius:8px;
  background:linear-gradient(150deg,var(--navy),var(--blue));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:16px;font-weight:700;letter-spacing:.04em;
}
.brand-text{min-width:0;}
.brand-text strong{
  display:block;font-size:17px;color:var(--navy);
  letter-spacing:.06em;line-height:1.3;font-weight:700;
}
.brand-text span{
  display:block;font-size:10.5px;color:var(--ink-3);
  letter-spacing:.16em;text-transform:uppercase;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

.nav{display:flex;align-items:center;gap:2px;}
.nav a{
  display:block;padding:8px 14px;border-radius:var(--radius-sm);
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  transition:background .15s,color .15s;
}
.nav a:hover{background:var(--blue-soft);color:var(--blue);}
.nav a[aria-current="page"]{
  color:var(--navy);font-weight:600;background:var(--blue-soft);
}
.header-tel{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;border-radius:var(--radius-sm);
  background:var(--navy);color:#fff;
  font-size:14px;font-weight:600;letter-spacing:.02em;
}
.header-tel svg{width:15px;height:15px;flex:0 0 auto;}

/* 移动端菜单（纯 CSS 展开） */
.nav-toggle{
  display:none;
  width:40px;height:40px;border:1px solid var(--line);border-radius:6px;
  background:#fff;align-items:center;justify-content:center;color:var(--navy);
  cursor:pointer;
}
.nav-toggle svg{width:19px;height:19px;}
.mobile-nav{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
}
.mobile-nav ul{padding:8px 18px 14px;}
.mobile-nav a{
  display:block;padding:11px 4px;
  border-bottom:1px solid var(--line-2);
  font-size:15px;color:var(--ink);
}
.mobile-nav a:last-child{border-bottom:0;}
.mobile-nav[data-open="true"]{display:block;}

/* ---------- 6. 首屏 ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 84% 10%,rgba(26,92,150,.42),transparent 46%),
    radial-gradient(circle at 6% 92%,rgba(26,92,150,.26),transparent 44%),
    linear-gradient(152deg,var(--navy) 0%,#123252 58%,var(--navy-2) 100%);
  color:#fff;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 82%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.55),transparent 82%);
}
.hero-inner{position:relative;z-index:2;padding:78px 24px 82px;}
.hero-kicker{
  display:inline-block;font-size:11.5px;letter-spacing:.26em;
  color:rgba(255,255,255,.72);
  border:1px solid rgba(255,255,255,.24);border-radius:3px;
  padding:4px 11px;margin-bottom:22px;
}
.hero h1{color:#fff;max-width:19em;margin-bottom:18px;}
.hero h1 .accent{color:#e8cd8e;}
.hero-lead{
  font-size:clamp(14.5px,1.5vw,16.5px);
  color:rgba(255,255,255,.80);
  max-width:34em;margin-bottom:26px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:34px;}
.hero-tags li{
  font-size:12.5px;color:rgba(255,255,255,.88);
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.18);
  border-radius:20px;padding:4px 13px;
}

/* 内页页头 */
.page-hero{
  background:
    radial-gradient(circle at 90% 0%,rgba(26,92,150,.34),transparent 48%),
    linear-gradient(150deg,var(--navy) 0%,var(--navy-2) 100%);
  color:#fff;position:relative;overflow:hidden;
}
.page-hero-inner{position:relative;z-index:2;padding:56px 24px 54px;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.5px;color:rgba(255,255,255,.58);margin-bottom:16px;
}
.crumb a{color:rgba(255,255,255,.72);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb span[aria-hidden]{color:rgba(255,255,255,.34);}
.page-hero h1{color:#fff;margin-bottom:14px;}
.page-hero .lead{
  font-size:15px;color:rgba(255,255,255,.78);max-width:36em;
}

/* ---------- 7. 卡片网格 ---------- */
.cards{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
}
.cards--2{grid-template-columns:repeat(2,1fr);}
.card{
  background:#fff;padding:30px 26px 28px;
  transition:background .18s;
}
.card:hover{background:#fcfdfe;}
.card .ico{
  width:40px;height:40px;border-radius:8px;
  background:var(--blue-soft);color:var(--blue);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
}
.card .ico svg{width:21px;height:21px;}
.card h3{margin-bottom:9px;}
.card p{font-size:13.8px;color:var(--ink-2);line-height:1.8;}
.card .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:15px;}
.card .tags li{
  font-size:11.5px;color:var(--ink-3);
  background:var(--bg-soft);border:1px solid var(--line-2);
  border-radius:4px;padding:2px 8px;line-height:1.7;
}

/* ---------- 8. 图文分栏 ---------- */
.split{
  display:grid;grid-template-columns:1.5fr 1fr;
  gap:52px;align-items:start;
}
.split--even{grid-template-columns:1fr 1fr;gap:56px;}
.prose p+p{margin-top:16px;}
.prose p{font-size:15px;color:var(--ink-2);}
.prose strong{color:var(--navy);font-weight:700;}

/* 信息清单（右栏定义列表） */
.facts{
  display:grid;gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
}
.fact{background:#fff;padding:20px 22px;}
.fact dt{font-size:12px;color:var(--ink-3);letter-spacing:.1em;margin-bottom:5px;}
.fact dd{font-size:15.5px;color:var(--navy);font-weight:700;line-height:1.5;}
.fact dd small{
  display:block;font-size:12.5px;font-weight:400;
  color:var(--ink-3);margin-top:3px;letter-spacing:0;
}

/* ---------- 9. 优势列表 ---------- */
.features{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 44px;}
.feature{display:flex;gap:15px;}
.feature .ico{
  flex:0 0 auto;width:36px;height:36px;border-radius:8px;
  background:var(--gold-soft);color:var(--gold);
  display:flex;align-items:center;justify-content:center;
}
.feature .ico svg{width:18px;height:18px;}
.feature h3{font-size:15.5px;margin-bottom:6px;}
.feature p{font-size:13.8px;color:var(--ink-2);line-height:1.8;}

/* ---------- 10. 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{position:relative;padding-top:22px;border-top:2px solid var(--line);}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:-13px;left:0;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--gold);background:var(--white);padding-right:10px;
}
.section--soft .step::before{background:var(--bg-soft);}
.step h3{font-size:15px;margin-bottom:7px;}
.step p{font-size:13.5px;color:var(--ink-2);line-height:1.8;}

/* ---------- 11. 业务详述块 ---------- */
.svc{
  display:grid;grid-template-columns:260px 1fr;gap:44px;
  padding:44px 0;border-bottom:1px solid var(--line);
}
.svc:first-of-type{border-top:1px solid var(--line);}
.svc-head h3{font-size:19px;margin-bottom:8px;}
.svc-head .en{
  display:block;font-size:10.5px;letter-spacing:.2em;
  color:var(--ink-3);text-transform:uppercase;margin-bottom:10px;
}
.svc-head .no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:8px;margin-bottom:14px;
  background:var(--blue-soft);color:var(--blue);
  font-size:13px;font-weight:700;letter-spacing:.02em;
}
.svc-body ul{display:grid;gap:11px;}
.svc-body li{
  position:relative;padding-left:18px;
  font-size:14px;color:var(--ink-2);line-height:1.85;
}
.svc-body li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--blue);
}
.svc-body li b{color:var(--navy);font-weight:700;}
.svc-note{
  margin-top:16px;font-size:12.8px;color:var(--ink-3);
  background:var(--bg-soft);border-left:3px solid var(--line);
  padding:10px 14px;border-radius:0 4px 4px 0;line-height:1.75;
}

/* ---------- 12. 联系信息 ---------- */
.contact-grid{
  display:grid;grid-template-columns:1.15fr 1fr;gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
}
.contact-list{background:#fff;}
.contact-list>div{
  display:flex;gap:16px;padding:17px 26px;
  border-bottom:1px solid var(--line-2);
}
.contact-list>div:last-child{border-bottom:0;}
.contact-list dt{
  flex:0 0 100px;font-size:13.5px;color:var(--ink-3);letter-spacing:.02em;
}
.contact-list dd{flex:1;min-width:0;font-size:14.5px;color:var(--ink);word-break:break-word;}
.contact-list dd a{color:var(--blue);font-weight:600;}
.contact-list dd a:hover{text-decoration:underline;}

.contact-aside{
  background:linear-gradient(160deg,var(--navy),var(--navy-2));
  color:#fff;padding:36px 30px;
  display:flex;flex-direction:column;justify-content:center;
}
.contact-aside h3{color:#fff;font-size:17px;margin-bottom:12px;}
.contact-aside p{font-size:13.5px;color:rgba(255,255,255,.78);line-height:1.9;}
.contact-aside .big-tel{
  display:block;margin:20px 0 6px;
  font-size:23px;font-weight:700;color:#fff;letter-spacing:.04em;
}
.contact-aside .big-tel:hover{color:#e8cd8e;}
.contact-aside .hours{font-size:12.5px;color:rgba(255,255,255,.62);}

/* 三地联系卡 */
.branches{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.branch{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 24px;
  box-shadow:var(--shadow-sm);
}
.branch .city{
  display:flex;align-items:center;gap:8px;
  font-size:16px;font-weight:700;color:var(--navy);margin-bottom:4px;
}
.branch .city svg{width:15px;height:15px;color:var(--gold);}
.branch .role{font-size:12px;color:var(--ink-3);letter-spacing:.08em;margin-bottom:14px;}
.branch .tel{display:block;font-size:17px;font-weight:700;color:var(--navy);letter-spacing:.02em;}
.branch .tel+.tel{margin-top:4px;}
.branch .tel:hover{color:var(--blue);}

/* ---------- 13. 行动条 ---------- */
.cta-band{
  background:linear-gradient(150deg,var(--navy) 0%,var(--navy-2) 100%);
  color:#fff;
}
.cta-inner{
  display:flex;flex-wrap:wrap;gap:28px;
  align-items:center;justify-content:space-between;
  padding:52px 24px;
}
.cta-inner h2{color:#fff;font-size:clamp(20px,2.4vw,26px);margin-bottom:8px;}
.cta-inner p{font-size:14px;color:rgba(255,255,255,.76);max-width:32em;}

/* ---------- 14. 页脚 ---------- */
.site-footer{
  background:#0b1c2e;color:rgba(255,255,255,.66);
  padding:46px 0 34px;font-size:13px;
}
.footer-top{
  display:flex;flex-wrap:wrap;gap:28px;
  justify-content:space-between;align-items:flex-start;
  padding-bottom:26px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand strong{
  display:block;color:#fff;font-size:15.5px;
  letter-spacing:.04em;margin-bottom:7px;
}
.footer-brand span{
  display:block;font-size:12.5px;
  color:rgba(255,255,255,.52);line-height:1.9;
}
.footer-links{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;}
.footer-links a{color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-legal{
  padding-top:22px;font-size:12.5px;line-height:2.05;
  color:rgba(255,255,255,.56);
}
.footer-legal .copy{color:rgba(255,255,255,.82);font-weight:600;letter-spacing:.02em;}
.footer-legal a{color:rgba(255,255,255,.72);}
.footer-legal a:hover{color:#fff;text-decoration:underline;}
.footer-legal .note{margin-top:8px;color:rgba(255,255,255,.42);}

/* ---------- 15. 待替换占位（上线前必须清除） ---------- */
.todo{
  background:#fff4d6;color:#8a5b00;
  border-bottom:1px dashed #c99a2e;
  padding:0 5px;border-radius:3px;font-style:normal;
}

/* ---------- 16. 响应式 ---------- */
@media (max-width:1024px){
  .nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-tel{display:none;}
  .split,.split--even{grid-template-columns:1fr;gap:34px;}
  .svc{grid-template-columns:1fr;gap:22px;padding:36px 0;}
  .cards{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 24px;}
  .contact-grid{grid-template-columns:1fr;}
  .branches{grid-template-columns:1fr;gap:14px;}
}

@media (max-width:640px){
  :root{--header-h:60px;}
  body{font-size:14.5px;}
  .wrap{padding:0 18px;}
  .section{padding:52px 0;}
  .section--tight{padding:42px 0;}
  .sec-head{margin-bottom:30px;}
  .hero-inner{padding:54px 18px 60px;}
  .page-hero-inner{padding:40px 18px 40px;}
  .brand-text span{font-size:9.5px;letter-spacing:.1em;}
  .cards,.cards--2{grid-template-columns:1fr;}
  .card{padding:26px 22px;}
  .features{grid-template-columns:1fr;gap:22px;}
  .steps{grid-template-columns:1fr;gap:26px;}
  .contact-list>div{flex-direction:column;gap:3px;padding:15px 20px;}
  .contact-list dt{flex:none;}
  .contact-aside{padding:28px 22px;}
  .cta-inner{padding:40px 18px;flex-direction:column;align-items:flex-start;}
  .footer-top{flex-direction:column;gap:18px;}
  .btn{width:100%;}
  .btn-row{width:100%;}
}

/* ---------- 17. 打印 ---------- */
@media print{
  .site-header,.cta-band,.nav-toggle,.mobile-nav{display:none!important;}
  body{font-size:11pt;color:#000;}
  .section{padding:18px 0;}
  .hero,.page-hero{background:#fff!important;color:#000!important;}
  .hero h1,.hero-lead,.page-hero h1,.page-hero .lead{color:#000!important;}
  .cards,.contact-grid,.facts{border-color:#bbb;}
  a[href^="tel"]::after{content:"（" attr(href) "）";}
}

/* ---------- 18. 减少动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none!important;animation:none!important;}
}