/*
Theme Name: CXIT 承星資訊
Theme URI: https://www.cxit.com.tw
Author: 承星資訊科技
Description: 承星資訊科技專屬響應式佈景主題。墨藍＋品牌紅，結構化佈線視覺語言，支援 WooCommerce。
Version: 1.0.0
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: cxit
*/

/* ===== Design Tokens ===== */
:root{
  --ink:#16324F;          /* 墨藍：主色 */
  --ink-deep:#0E2236;     /* 深墨藍：footer/hero */
  --signal:#C8102E;       /* 品牌紅：CTA與強調 */
  --paper:#F7F8FA;        /* 紙白背景 */
  --white:#FFFFFF;
  --steel:#5B6B7A;        /* 鋼灰次要文字 */
  --trace:#D6DEE6;        /* 線路灰：軌跡線 */
  --font-display:"Noto Serif TC",serif;
  --font-body:"Noto Sans TC",sans-serif;
  --font-mono:"IBM Plex Mono",monospace;
  --maxw:1120px;
  --radius:10px;
}

/* ===== Reset ===== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
body{font-family:var(--font-body);color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--trace)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:baseline;gap:10px}
.brand-mark{font-family:var(--font-mono);font-weight:700;font-size:22px;color:var(--signal);letter-spacing:.5px}
.brand-name{font-size:14px;color:var(--steel);letter-spacing:.05em}
.main-nav ul{display:flex;gap:4px;flex-wrap:nowrap}
.main-nav a{font-size:14px;font-weight:500;color:var(--ink);padding:6px 10px;border-bottom:2px solid transparent;transition:border-color .2s;white-space:nowrap}
.main-nav a:hover,.main-nav .current-menu-item>a{border-bottom-color:var(--signal)}
.header-cta{display:inline-block;background:var(--signal);color:#fff;font-weight:700;font-size:13px;padding:8px 14px;border-radius:6px;transition:background .2s;white-space:nowrap;flex-shrink:0}
.header-cta:hover{background:#A50D26}
.nav-toggle{display:none;background:none;border:1px solid var(--trace);border-radius:6px;padding:8px 10px;cursor:pointer;font-size:18px;line-height:1;color:var(--ink)}

/* ===== Hero ===== */
.hero{background:var(--ink-deep);color:#fff;position:relative;overflow:hidden}
.hero::before{ /* 佈線軌跡：橫向線路 */
  content:"";position:absolute;left:0;right:0;top:78%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22) 20%,rgba(255,255,255,.22) 80%,transparent);
}
.hero-inner{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;padding:88px 0 96px;align-items:center}
.eyebrow{font-family:var(--font-mono);font-size:13px;letter-spacing:.14em;color:#9FB3C8;text-transform:uppercase;margin-bottom:18px}
.eyebrow .dot{color:var(--signal)}
.hero h1{font-family:var(--font-display);font-weight:900;font-size:clamp(34px,4.6vw,56px);line-height:1.28;letter-spacing:.01em}
.hero h1 em{font-style:normal;color:#FF6B81;border-bottom:4px solid var(--signal)}
.hero p.lede{margin-top:22px;font-size:17px;color:#C3D0DC;max-width:34em}
.hero-actions{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;font-weight:700;font-size:16px;padding:13px 26px;border-radius:8px;transition:transform .15s,background .2s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--signal);color:#fff}
.btn-primary:hover{background:#E01235}
.btn-ghost{border:1px solid #4A5F74;color:#E5ECF2}
.btn-ghost:hover{border-color:#9FB3C8}

/* 工單卡：hero 右側 */
.ticket{background:#fff;color:var(--ink);border-radius:var(--radius);padding:26px 26px 22px;box-shadow:0 24px 60px rgba(0,0,0,.35);position:relative}
.ticket::before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:var(--signal);border-radius:var(--radius) var(--radius) 0 0}
.ticket h3{font-family:var(--font-mono);font-size:13px;letter-spacing:.12em;color:var(--steel);margin-bottom:16px}
.ticket-row{display:flex;justify-content:space-between;align-items:baseline;padding:11px 0;border-bottom:1px dashed var(--trace)}
.ticket-row:last-child{border-bottom:none}
.ticket-row .k{font-size:14px;color:var(--steel)}
.ticket-row .v{font-weight:700;font-size:15px}
.ticket-row .v.mono{font-family:var(--font-mono)}

/* ===== 區塊共用：左側線路軌跡 ===== */
.section{padding:84px 0}
.section-inner{position:relative;padding-left:56px}
.section-inner::before{ /* 垂直軌跡線 */
  content:"";position:absolute;left:12px;top:6px;bottom:6px;width:1px;background:var(--trace);
}
.section-inner::after{ /* 節點 */
  content:"";position:absolute;left:7px;top:6px;width:11px;height:11px;border-radius:50%;
  background:var(--paper);border:3px solid var(--signal);
}
.section-label{font-family:var(--font-mono);font-size:13px;letter-spacing:.16em;color:var(--signal);margin-bottom:12px;text-transform:uppercase}
.section h2{font-family:var(--font-display);font-weight:700;font-size:clamp(26px,3.2vw,36px);line-height:1.35;margin-bottom:14px}
.section .desc{color:var(--steel);max-width:44em;margin-bottom:40px}

/* ===== 服務卡 ===== */
.svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.svc{background:#fff;border:1px solid var(--trace);border-radius:var(--radius);padding:28px;transition:box-shadow .2s,transform .2s;position:relative}
.svc:hover{box-shadow:0 14px 36px rgba(22,50,79,.12);transform:translateY(-2px)}
.svc .svc-code{font-family:var(--font-mono);font-size:12px;color:var(--steel);letter-spacing:.1em}
.svc h3{font-size:20px;font-weight:700;margin:8px 0 10px}
.svc p{font-size:15px;color:var(--steel)}
.svc a.more{display:inline-block;margin-top:14px;font-weight:700;font-size:14px;color:var(--signal)}
.svc a.more::after{content:" →"}

/* ===== 數字帶 ===== */
.stats{background:var(--ink);color:#fff;border-radius:var(--radius)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:34px 10px}
.stat{text-align:center;padding:10px 16px;border-right:1px solid rgba(255,255,255,.14)}
.stat:last-child{border-right:none}
.stat .num{font-family:var(--font-mono);font-weight:700;font-size:30px;color:#fff}
.stat .lbl{font-size:13px;color:#9FB3C8;margin-top:6px;letter-spacing:.04em}

/* ===== 客群 ===== */
.aud-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.aud{background:#fff;border:1px solid var(--trace);border-left:4px solid var(--ink);border-radius:8px;padding:22px 24px}
.aud h3{font-size:17px;margin-bottom:8px}
.aud p{font-size:14px;color:var(--steel)}

/* ===== 流程（真實序列，允許編號） ===== */
.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{background:#fff;border:1px solid var(--trace);border-radius:var(--radius);padding:24px}
.step::before{counter-increment:step;content:"0" counter(step);font-family:var(--font-mono);font-weight:700;color:var(--signal);font-size:14px;letter-spacing:.1em}
.step h3{font-size:17px;margin:10px 0 8px}
.step p{font-size:14px;color:var(--steel)}

/* ===== CTA 帶 ===== */
.cta-band{background:linear-gradient(120deg,var(--ink-deep),var(--ink));color:#fff;border-radius:var(--radius);padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-family:var(--font-display);font-size:clamp(24px,3vw,32px);font-weight:700}
.cta-band p{color:#C3D0DC;margin-top:8px}

/* ===== 內頁 ===== */
.page-hero{background:var(--ink-deep);color:#fff;padding:56px 0}
.page-hero h1{font-family:var(--font-display);font-weight:700;font-size:clamp(26px,3.4vw,40px)}
.entry{background:#fff;border:1px solid var(--trace);border-radius:var(--radius);padding:clamp(24px,4vw,48px);margin:48px auto}
.entry h2{font-family:var(--font-display);font-size:26px;margin:1.6em 0 .6em}
.entry h3{font-size:20px;margin:1.4em 0 .5em}
.entry p{margin:.9em 0}
.entry ul,.entry ol{margin:.9em 0 .9em 1.4em}
.entry ul{list-style:disc}.entry ol{list-style:decimal}
.entry table{width:100%;border-collapse:collapse;margin:1.2em 0;font-size:15px}
.entry th,.entry td{border:1px solid var(--trace);padding:10px 14px;text-align:left}
.entry th{background:var(--paper)}
.entry a{color:var(--signal);font-weight:600}
.entry blockquote{border-left:4px solid var(--signal);background:var(--paper);padding:14px 18px;margin:1.2em 0;color:var(--steel)}

/* ===== Footer ===== */
.site-footer{background:var(--ink-deep);color:#B9C7D4;margin-top:84px}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px;padding:56px 0 40px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:14px}
.site-footer li{margin-bottom:9px;font-size:14px}
.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.footer-brand{font-family:var(--font-mono);color:var(--signal);font-weight:700;font-size:20px;margin-bottom:10px}

/* ===== WooCommerce 基本融合 ===== */
.woocommerce .button,.woocommerce a.button,.woocommerce button.button{background:var(--signal)!important;color:#fff!important;border-radius:6px!important}
.woocommerce ul.products li.product .woocommerce-loop-product__title{font-size:16px;color:var(--ink)}
.woocommerce span.price,.woocommerce .price{color:var(--signal)!important}

/* ===== RWD ===== */
@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:64px 0}
  .svc-grid,.aud-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat{border-right:none;border-bottom:1px solid rgba(255,255,255,.14);padding:16px}
  .stat:nth-last-child(-n+2){border-bottom:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--trace);padding:12px 24px 20px}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column;gap:4px}
  .main-nav a{display:block;padding:10px 0}
  .nav-toggle{display:block}
  .header-cta{display:none}
  .svc-grid,.aud-grid,.steps{grid-template-columns:1fr}
  .section-inner{padding-left:34px}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:40px 28px}
}

/* 無障礙焦點 */
a:focus-visible,button:focus-visible{outline:3px solid var(--signal);outline-offset:2px}

/* ===== 下拉式子選單 ===== */
.main-nav ul{position:relative}
.main-nav ul li{position:relative}
.main-nav ul li ul{
  display:none;
  position:absolute;
  top:100%;
  left:0;
  background:#fff;
  border:1px solid var(--trace);
  border-top:3px solid var(--signal);
  border-radius:0 0 8px 8px;
  min-width:200px;
  box-shadow:0 8px 24px rgba(22,50,79,.12);
  z-index:999;
  flex-direction:column;
  gap:0;
  padding:8px 0;
}
.main-nav ul li:hover>ul{display:flex}
.main-nav ul li ul li{width:100%}
.main-nav ul li ul a{
  display:block;
  padding:10px 18px;
  font-size:14px;
  color:var(--ink);
  white-space:nowrap;
  border-bottom:none;
}
.main-nav ul li ul a:hover{background:var(--paper);color:var(--signal);border-bottom:none}
.main-nav>ul>li>a::after{content:none}
.main-nav ul li:has(>ul)>a::after{content:" ▾";font-size:11px;color:var(--steel)}

/* ===== 第三層子選單 ===== */
.main-nav ul li ul li{position:relative}
.main-nav ul li ul li ul{
  display:none;
  position:absolute;
  top:0;
  left:100%;
  background:#fff;
  border:1px solid var(--trace);
  border-top:3px solid var(--signal);
  border-radius:0 8px 8px 8px;
  min-width:200px;
  box-shadow:0 8px 24px rgba(22,50,79,.12);
  z-index:1000;
  flex-direction:column;
  gap:0;
  padding:8px 0;
}
.main-nav ul li ul li:hover>ul{display:flex}
.main-nav ul li ul li:has(>ul)>a::after{content:" ▸";font-size:11px;color:var(--steel)}

/* ===== 第三層子選單過長時可捲動 ===== */
.main-nav ul li ul li ul{
  max-height:70vh;
  overflow-y:auto;
  overscroll-behavior:contain;
}
.main-nav ul li ul li ul::-webkit-scrollbar{width:6px}
.main-nav ul li ul li ul::-webkit-scrollbar-thumb{background:#c9cfda;border-radius:3px}
.main-nav ul li ul li ul::-webkit-scrollbar-thumb:hover{background:#c8102e}