/* 平安會計 共用樣式表 — 適用於 index.html 與各內容頁 */
:root{
  --brand-dark:#0f2c6b;
  --brand-blue:#0ea5e9;
  --brand-light:#e6f4fa;
  --cta:#42b99f;
  --text:#1f2937;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Noto Sans TC',sans-serif;color:var(--text);line-height:1.65}
html{scroll-behavior:smooth;scroll-padding-top:80px}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none}
.container{width:min(1120px,92%);margin:0 auto}
.btn{display:inline-flex;align-items:center;gap:.5rem;background:var(--cta);color:#fff;padding:.95rem 1.8rem;border-radius:999px;font-weight:700;font-size:1.1rem;transition:transform .2s,box-shadow .2s;border:none;cursor:pointer}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(66,185,159,.35)}
.section-title{font-size:clamp(1.7rem,4vw,2.4rem);color:var(--brand-dark);margin:0 0 .5rem;text-align:center;font-weight:700}
.section-sub{text-align:center;color:#64748b;margin:0 auto 2.5rem;max-width:640px}
header{position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid #e2e8f0;z-index:100}
nav{display:flex;align-items:center;justify-content:space-between;padding:.55rem 0}
.logo{height:56px}
.nav-cta{font-size:.9rem;padding:.55rem 1.2rem}
.nav-menu{display:flex;align-items:center;gap:2.2rem;margin:0;padding:0;list-style:none}
.nav-menu a{color:var(--brand-dark);text-decoration:none;font-weight:500;font-size:.98rem;position:relative;padding:.35rem 0;transition:color .2s}
.nav-menu a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--cta);transform:scaleX(0);transform-origin:center;transition:transform .25s}
.nav-menu a:hover::after{transform:scaleX(1)}
.nav-menu a.active::after{transform:scaleX(1)}
.nav-toggle{display:none;background:none;border:none;color:var(--brand-dark);font-size:1.7rem;cursor:pointer;padding:.2rem .5rem;line-height:1}
.hero{position:relative;min-height:92vh;display:flex;align-items:center;background:linear-gradient(90deg,rgba(15,44,107,.93) 0%,rgba(15,44,107,.75) 50%,rgba(15,44,107,.85) 100%),url('hero-bg.jpg') center/cover no-repeat;color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 76% 48%,rgba(0,0,0,.45) 0%,rgba(15,44,107,.5) 45%,transparent 80%);pointer-events:none}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;grid-template-rows:repeat(5,auto);gap:0 3rem;align-items:center}
.hero-grid > h1,.hero-grid > .lead,.hero-grid > .hero-cta,.hero-grid > .hero-badge{grid-column:1}
.hero-graphic{grid-column:2;grid-row:1 / span 5}
.hero h1{font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.15;margin:0 0 1rem;font-weight:700}
.hero .lead{font-size:clamp(1.1rem,2.2vw,1.35rem);opacity:.95;margin:0 0 1.8rem;max-width:520px}
.hero-cta{margin-bottom:1.6rem;justify-self:start;background:linear-gradient(180deg,#4ec9ac 0%,var(--cta) 55%,#35a88d 100%);box-shadow:0 8px 20px rgba(66,185,159,.45),0 4px 0 #2e9079,inset 0 1px 0 rgba(255,255,255,.35);text-shadow:0 1px 2px rgba(0,0,0,.18);transition:transform .18s ease,box-shadow .18s ease}
.hero-cta:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(66,185,159,.5),0 6px 0 #2e9079,inset 0 1px 0 rgba(255,255,255,.35)}
.hero-cta:active{transform:translateY(3px);box-shadow:0 4px 10px rgba(66,185,159,.35),0 1px 0 #2e9079,inset 0 1px 0 rgba(255,255,255,.2)}
.hero-badge{height:52px;width:auto;border-radius:.4rem;margin-right:1rem;margin-bottom:.6rem;background:#fff;padding:.15rem .35rem;box-shadow:0 4px 12px rgba(0,0,0,.15)}
.hero-graphic{border-radius:1rem;overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.35);transform:perspective(1000px) rotateY(-4deg) rotateX(2deg);transition:transform .4s;background:rgba(255,255,255,.08);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.25);padding:.65rem}
.hero-graphic:hover{transform:perspective(1000px) rotateY(0deg) rotateX(0deg)}
.hero-graphic img{width:100%;border-radius:.5rem}
.hero-logo-bottom{display:none}
.features{display:none}
.hero-features{display:none}
.feature-list{list-style:none;margin:0;padding:0;display:grid;gap:1rem}
.feature-list li{display:flex;gap:.9rem;align-items:center;background:#fff;border:1px solid #e2e8f0;border-radius:1rem;padding:1.1rem 1.2rem;box-shadow:0 4px 14px rgba(15,44,107,.05)}
.feature-check{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--cta);color:#fff;display:grid;place-items:center;font-weight:700;font-size:1rem}
.feature-list strong{display:block;color:var(--brand-dark);font-size:1.05rem;margin-bottom:.25rem}
.feature-list p{margin:0;color:#475569;font-size:.95rem;line-height:1.55}
.hero-features .feature-list{gap:.7rem}
.hero-features .feature-list li{background:transparent;border:none;border-bottom:1px solid rgba(255,255,255,.15);box-shadow:none;padding:.8rem 0;color:#fff}
.hero-features .feature-list li:last-child{border-bottom:none}
.hero-features .feature-list strong{color:#fff}
.hero-features .feature-list p{color:rgba(255,255,255,.85)}
.hero-features{background:rgba(255,255,255,.1);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.18);border-radius:1rem;padding:.6rem 1rem}
.services{padding:5rem 0}
.service-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1.2rem}
.service-card{background:#fff;border:1px solid #e2e8f0;border-radius:1rem;padding:1.6rem 1rem;text-align:center;transition:transform .2s,box-shadow .2s}
.service-card:hover{transform:translateY(-5px);box-shadow:0 14px 34px rgba(15,44,107,.08);border-color:#bfdbfe}
.service-icon{width:60px;height:60px;margin:0 auto 1rem;background:var(--brand-light);color:var(--brand-dark);border-radius:50%;display:grid;place-items:center;font-size:1.6rem}
.service-card h3{margin:.4rem 0 .2rem;font-size:1.1rem;color:var(--brand-dark)}
.service-card p{margin:0;font-size:.9rem;color:#64748b}
.why{background:linear-gradient(135deg,var(--brand-dark) 0%,#084c7f 100%);color:#fff;padding:5rem 0;position:relative;overflow:hidden}
.why::before{content:"";position:absolute;inset:0;background:url('badge.jpg') center/cover no-repeat;opacity:.12}
.why .container{position:relative;z-index:1}
.why h2{font-size:clamp(1.8rem,4vw,2.6rem);margin:0 0 1rem}
.why p{font-size:1.15rem;opacity:.92;max-width:680px;margin:0 0 1.8rem}
.why-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.2rem}
.why-item{background:rgba(255,255,255,.1);backdrop-filter:blur(6px);border-radius:1rem;padding:1.2rem;border:1px solid rgba(255,255,255,.15)}
.why-item strong{display:block;font-size:1.15rem;margin-bottom:.3rem}
.why-item span{opacity:.85;font-size:.95rem}
.testimonials{padding:5rem 0;background:#fff}
.testi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem}
.testi-card{background:#f8fafc;border-radius:1rem;padding:1.6rem;transition:transform .2s}
.testi-card:hover{transform:translateY(-4px)}
.stars{color:#f59e0b;margin-bottom:.6rem;font-size:1.1rem}
.testi-card p{font-style:italic;margin:0 0 1rem;color:#334155}
.testi-card .name{font-weight:700;color:var(--brand-dark)}
.testi-card .role{font-size:.85rem;color:#64748b}
.faq{padding:5rem 0;background:#f8fafc}
.faq-item{background:#fff;border-radius:.75rem;margin-bottom:.75rem;overflow:hidden;border:1px solid #e2e8f0}
.faq-q{width:100%;text-align:left;padding:1.1rem 1.25rem;background:none;border:none;font-size:1.05rem;font-weight:700;color:var(--brand-dark);display:flex;justify-content:space-between;align-items:center;cursor:pointer}
.faq-q::after{content:"＋";font-size:1.2rem;color:var(--brand-blue)}
.faq-item.active .faq-q::after{content:"－"}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0 1.25rem;color:#475569}
.faq-item.active .faq-a{max-height:220px;padding-bottom:1.1rem}
.cta-band{background:var(--brand-light);padding:4rem 0;text-align:center}
.cta-band h2{color:var(--brand-dark);font-size:clamp(1.6rem,4vw,2.2rem);margin:0 0 .8rem}
.cta-band p{color:#475569;margin:0 0 1.5rem}
footer{background:#0f172a;color:#cbd5e1;padding:2.5rem 0 1.5rem;text-align:center}
footer p{margin:.3rem 0}
footer a{color:#38bdf8}
@media (max-width:860px){
  .logo{height:64px}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-menu{position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:#fff;border-bottom:1px solid #e2e8f0;padding:0;margin:0;max-height:0;overflow:hidden;transition:max-height .3s ease;box-shadow:0 8px 16px rgba(15,44,107,.08)}
  .nav-menu.open{max-height:360px}
  .nav-menu li{width:100%}
  .nav-menu a{display:block;padding:1rem 6%;font-size:1rem;border-bottom:1px solid #f1f5f9}
  .nav-menu li:last-child a{border-bottom:none}
  .nav-menu a::after{display:none}
  .hero{min-height:auto;padding:5rem 0 2.5rem}
  .hero-grid{display:flex;flex-direction:column;align-items:center;text-align:center;gap:0}
  .hero-grid > h1,.hero-grid > .lead,.hero-grid > .hero-cta,.hero-grid > .hero-badge,.hero-grid > .hero-graphic,.hero-grid > .hero-logo-bottom,.hero-grid > .hero-features{grid-column:auto;grid-row:auto}
  .hero-grid > h1,.hero-grid > .lead{width:100%}
  .hero-grid > h1{order:1;margin-bottom:1rem}
  .hero-grid > .hero-graphic{order:2;width:100%;max-width:none;margin:.4rem 0 1.2rem;transform:none;padding:0;background:none;backdrop-filter:none;border:none;box-shadow:none;border-radius:0}
  .hero-grid > .hero-graphic img{width:100%;border-radius:0}
  .hero-grid > .badge-soft{order:3;width:100%;max-width:100%;height:auto;margin:0 0 .6rem;padding:.3rem .5rem;background:#fff;border-radius:.35rem;box-shadow:0 3px 10px rgba(0,0,0,.12)}
  .hero-grid > .badge-soft img{width:100%;height:auto;display:block}
  .hero-grid > .lead{display:none}
  .hero-grid > .hero-features{order:4;display:block;width:100%;max-width:520px;margin:0 auto 1rem;text-align:left}
  .hero-grid > .hero-cta{order:5;width:100%;justify-content:center;margin:0 0 1.1rem;padding:1.1rem 1.2rem;font-size:2.1rem;gap:.7rem}
  .hero-grid > .badge-years{order:6;width:100%;max-width:100%;height:auto;margin:1rem 0 0;padding:.45rem .7rem;background:#fff;border-radius:.35rem;box-shadow:0 3px 10px rgba(0,0,0,.12)}
  .hero-grid > .badge-years img{width:100%;height:auto;display:block}
  .hero-grid > .hero-logo-bottom{display:none}
  .why-list{grid-template-columns:1fr}
  .services{padding:3.5rem 0}
  .service-grid{grid-template-columns:repeat(2,1fr);gap:.8rem}
  .service-card{padding:1rem .6rem}
  .service-icon{width:48px;height:48px;font-size:1.3rem}
  .service-card h3{font-size:.95rem}
  .service-card p{font-size:.8rem}
  .testimonials{padding:3.5rem 0}
  .faq{padding:3.5rem 0}
  .faq-q{font-size:.95rem;padding:1rem 1.1rem}
  .faq-a{padding:0 1.1rem}
  .cta-band{padding:3rem 0}
}
@media (max-width:520px){
  .logo{height:56px}
  .hero h1{font-size:clamp(1.7rem,8vw,2.2rem)}
  .btn{padding:.75rem 1.2rem;font-size:.9rem}
  .hero-badge{height:32px;margin:0 .2rem .5rem}
  .hero-grid > .badge-soft{height:auto}
  .hero-grid > .badge-years{height:auto}
  
  .hero-grid > .hero-features{max-width:100%;padding:0 .5rem}
  .section-title{font-size:clamp(1.5rem,6vw,1.9rem)}
  .service-icon{width:52px;height:52px;font-size:1.4rem}
  .service-card h3{font-size:1rem}
}