:root {
  /* HGC 正式品牌色待確認；日後只需更新此區。 */
  --brand-primary: #5b2b82;
  --brand-primary-dark: #35164f;
  --brand-accent: #d7a62a;
  --brand-ink: #16141a;
  --brand-muted: #66616b;
  --brand-paper: #f6f3f7;
  --brand-surface: #ffffff;
  --brand-line: rgba(22, 20, 26, .15);
  --brand-dark-surface: #18151d;
  --brand-whatsapp: #168a53;
  --brand-focus: #21132d;
  --brand-success: #168a53;
  --brand-on-dark-muted: #c9c2ce;
  --brand-field: #fbfafc;
  --brand-shadow: rgba(35, 18, 48, .16);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--brand-paper);color:var(--brand-ink);font-family:Arial,"PingFang HK","Microsoft JhengHei",sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}:focus-visible{outline:3px solid var(--brand-focus);outline-offset:4px}.section-shell,.strip,.nav-shell,.hero-grid{width:min(1240px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--brand-paper) 93%,transparent);border-bottom:1px solid var(--brand-line);backdrop-filter:blur(14px)}.nav-shell{min-height:76px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:14px}.logo-slot{width:86px;height:48px;display:grid;place-items:center;position:relative;border:1px dashed var(--brand-primary);background:var(--brand-surface);color:var(--brand-primary);font-size:9px;font-weight:800;text-align:center}.logo-slot img{position:absolute;width:100%;height:100%;object-fit:contain;background:var(--brand-surface)}.logo-slot img:not([src]),.logo-slot img[src=""]{display:none}.brand-copy{padding-left:14px;border-left:1px solid var(--brand-line);font-size:13px;font-weight:700}.main-nav{display:flex;align-items:center;gap:28px;font-size:14px;font-weight:700}.main-nav a{padding:14px 0}.nav-cta,.contact-form button{background:var(--brand-whatsapp);color:var(--brand-surface)}.nav-cta{padding:12px 18px!important;border-radius:4px}.menu-button{display:none;border:0;background:none;padding:12px}.menu-button span{display:block;width:24px;height:2px;background:var(--brand-ink);margin:5px}.hero{border-bottom:1px solid var(--brand-line);overflow:hidden}.hero-grid{min-height:700px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:70px}.kicker,.section-label{margin:0 0 24px;font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}.kicker span{display:inline-block;width:7px;height:7px;margin-right:9px;background:var(--brand-accent)}h1,h2,h3,p{overflow-wrap:anywhere}.hero h1{margin:0;font-size:clamp(52px,7vw,94px);line-height:.96;letter-spacing:-.06em}.hero h1 em{color:var(--brand-primary);font-style:normal}.hero-lead{max-width:650px;margin:30px 0 0;color:var(--brand-muted);font-size:18px;line-height:1.75}.hero-actions{display:flex;gap:12px;margin-top:34px}.button{min-height:54px;display:inline-flex;align-items:center;justify-content:center;gap:22px;padding:0 24px;border:1px solid var(--brand-ink);border-radius:4px;font-weight:800}.button-whatsapp{color:var(--brand-surface);background:var(--brand-whatsapp);border-color:var(--brand-whatsapp)}.trust-list{display:flex;flex-wrap:wrap;gap:18px;margin:35px 0 0;padding:0;list-style:none;color:var(--brand-muted);font-size:12px;font-weight:700}.trust-list li:before{content:"✓";margin-right:7px;color:var(--brand-accent)}.network-visual{display:grid;gap:14px;padding:32px;background:var(--brand-dark-surface);border-radius:8px;box-shadow:0 28px 55px var(--brand-shadow)}.flow-card{display:grid;grid-template-columns:42px 1fr;gap:2px 14px;padding:22px;background:color-mix(in srgb,var(--brand-surface) 8%,transparent);border:1px solid color-mix(in srgb,var(--brand-surface) 15%,transparent);color:var(--brand-surface)}.flow-card span{grid-row:1/3;color:var(--brand-accent);font-weight:900}.flow-card strong{font-size:22px}.flow-card p{margin:6px 0 0;color:var(--brand-on-dark-muted);font-size:13px}.strip{display:grid;grid-template-columns:1fr 1fr;gap:70px;padding:110px 0}.strip h2,.section-heading h2,.process h2,.faq h2,.contact h2{margin:0;font-size:clamp(36px,5vw,62px);line-height:1.08;letter-spacing:-.045em}.strip>p,.section-heading>p,.faq-heading>p{margin:0;color:var(--brand-muted);line-height:1.9}.coverage{padding:100px 0}.section-heading{display:grid;grid-template-columns:1.2fr .8fr;gap:70px;align-items:end}.coverage-box{margin-top:40px;padding:35px;background:var(--brand-surface);border:1px solid var(--brand-line)}.coverage-box label{display:block;margin-bottom:10px;font-weight:800}.address-field{position:relative}.address-field input,.contact-form input,.contact-form select,.contact-form textarea{width:100%;padding:15px;border:1px solid var(--brand-line);background:var(--brand-field);color:var(--brand-ink);font-size:16px}.address-field small{display:block;margin-top:8px;color:var(--brand-muted)}#addressStatus{min-height:18px;color:var(--brand-primary)}.coverage-box>.button{margin-top:24px}.address-results{position:absolute;z-index:20;left:0;right:0;max-height:280px;overflow:auto;background:var(--brand-surface);border:1px solid var(--brand-line);box-shadow:0 16px 38px var(--brand-shadow)}.address-result{width:100%;display:block;padding:13px 15px;border:0;border-bottom:1px solid var(--brand-line);background:var(--brand-surface);text-align:left;cursor:pointer}.address-result:hover,.address-result.is-active{background:var(--brand-primary);color:var(--brand-surface)}.plans-section{padding:100px 0;background:var(--brand-primary-dark);color:var(--brand-surface)}.section-label.light,.plans-section .section-heading>p{color:var(--brand-on-dark-muted)}.plan-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:50px}.plan-card{padding:28px;min-height:350px;display:flex;flex-direction:column;background:color-mix(in srgb,var(--brand-surface) 7%,transparent);border:1px solid color-mix(in srgb,var(--brand-surface) 18%,transparent)}.plan-card.selected{border-color:var(--brand-accent);box-shadow:inset 0 4px 0 var(--brand-accent)}.status-tag{align-self:flex-start;padding:6px 8px;background:var(--brand-accent);color:var(--brand-ink);font-size:10px;font-weight:900}.plan-card>strong{margin-top:34px;font-size:46px}.plan-card h3{margin:12px 0}.plan-card p{color:var(--brand-on-dark-muted);line-height:1.6}.plan-card button{margin-top:auto;min-height:48px;border:1px solid var(--brand-surface);background:transparent;color:var(--brand-surface);cursor:pointer;font-weight:800}.plan-card.selected button{background:var(--brand-surface);color:var(--brand-primary-dark)}.process{padding:110px 0}.process-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:50px}.process-grid article{padding:25px;border:1px solid var(--brand-line);border-left:0}.process-grid article:first-child{border-left:1px solid var(--brand-line)}.process-grid span{color:var(--brand-primary);font-weight:900}.process-grid h3{margin-top:50px}.process-grid p{color:var(--brand-muted);line-height:1.65}.faq{display:grid;grid-template-columns:.72fr 1.28fr;gap:80px;padding:110px 0}.accordion article{border-top:1px solid var(--brand-line)}.accordion article:last-child{border-bottom:1px solid var(--brand-line)}.accordion button{width:100%;min-height:88px;display:grid;grid-template-columns:42px 1fr 20px;align-items:center;border:0;background:none;text-align:left;font-weight:800;cursor:pointer}.accordion button span{color:var(--brand-primary)}.accordion i{font-style:normal;font-size:24px}.accordion .is-open i{transform:rotate(45deg)}.accordion article>div p{margin:0;padding:0 30px 28px 42px;color:var(--brand-muted);line-height:1.8}.contact{display:grid;grid-template-columns:.85fr 1.15fr;background:var(--brand-dark-surface);color:var(--brand-surface)}.contact-copy,.contact-form{padding:85px max(40px,calc((100vw - 1240px)/2))}.contact-copy{padding-right:70px}.contact-copy>p{color:var(--brand-on-dark-muted);line-height:1.8}.notice{padding:16px;border-left:3px solid var(--brand-accent)}.contact-form{padding-left:70px;background:var(--brand-surface);color:var(--brand-ink);display:grid;grid-template-columns:1fr 1fr;gap:22px}.contact-form label{display:flex;flex-direction:column;gap:9px;font-size:12px;font-weight:800}.contact-form label:nth-child(4){grid-column:1/-1}.contact-form button{grid-column:1/-1;min-height:58px;border:0;padding:0 22px;font-weight:900;cursor:pointer}footer{padding:70px max(20px,calc((100vw - 1240px)/2)) 30px;background:var(--brand-dark-surface);color:var(--brand-surface);border-top:1px solid color-mix(in srgb,var(--brand-surface) 12%,transparent)}.footer-top,.footer-bottom{display:flex;justify-content:space-between;gap:30px}.footer-top{padding-bottom:45px;border-bottom:1px solid color-mix(in srgb,var(--brand-surface) 15%,transparent)}.footer-top p,.footer-bottom{color:var(--brand-on-dark-muted);font-size:12px}.footer-top nav{display:grid;grid-template-columns:1fr 1fr;gap:18px 45px}.footer-bottom{padding-top:25px}.footer-bottom div{display:flex;gap:18px}.mobile-actions{display:none}.legal-page{min-height:100vh;padding:90px 20px}.legal-shell{width:min(780px,100%);margin:auto}.legal-back{color:var(--brand-primary);font-weight:800}.legal-shell h1{font-size:clamp(44px,7vw,72px)}.legal-shell h2{margin-top:40px}.legal-shell p,.legal-shell li{color:var(--brand-muted);line-height:1.9}.legal-notice{padding:18px;border-left:3px solid var(--brand-accent);background:var(--brand-surface)}
@media(max-width:1000px){.hero-grid{grid-template-columns:1fr;padding:80px 0}.network-visual{margin-bottom:30px}.plan-grid{grid-template-columns:repeat(2,1fr)}.contact{grid-template-columns:1fr}.contact-copy,.contact-form{padding:70px max(40px,calc((100vw - 760px)/2))}}
@media(max-width:760px){body{padding-bottom:68px}.nav-shell{width:calc(100% - 28px);min-height:64px}.logo-slot{width:66px;height:40px}.brand-copy{font-size:11px;padding-left:8px}.menu-button{display:block}.main-nav{display:none;position:absolute;top:64px;left:0;right:0;padding:22px;flex-direction:column;align-items:stretch;gap:0;background:var(--brand-paper);border-bottom:1px solid var(--brand-line)}.main-nav.is-open{display:flex}.nav-cta{text-align:center}.hero-grid,.section-shell,.strip{width:calc(100% - 32px)}.hero-grid{min-height:auto;padding:70px 0}.hero h1{font-size:clamp(48px,15vw,68px)}.hero-actions{flex-direction:column}.strip,.section-heading,.faq{grid-template-columns:1fr;gap:30px}.strip,.coverage,.process,.faq{padding:75px 0}.coverage-box{padding:22px}.plan-grid,.process-grid{grid-template-columns:1fr}.plan-card{min-height:300px}.process-grid article{border-left:1px solid var(--brand-line);border-top:0}.process-grid article:first-child{border-top:1px solid var(--brand-line)}.faq{display:grid}.contact-copy,.contact-form{padding:65px 24px}.contact-form{grid-template-columns:1fr}.contact-form label:nth-child(4),.contact-form button{grid-column:auto}.footer-top,.footer-bottom{flex-direction:column}.footer-bottom div{flex-wrap:wrap}.mobile-actions{position:fixed;z-index:60;left:0;right:0;bottom:0;display:grid;grid-template-columns:.8fr 1.2fr;gap:8px;padding:8px 12px;background:var(--brand-surface);border-top:1px solid var(--brand-line)}.mobile-actions a{min-height:48px;display:grid;place-items:center;border:1px solid var(--brand-ink);font-size:13px;font-weight:900}.mobile-actions a:last-child{color:var(--brand-surface);background:var(--brand-whatsapp);border-color:var(--brand-whatsapp)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}

/* Supplementary content cards use the existing HGC theme variables. */
.benefits{padding:20px 0 110px}.benefits-heading{margin-bottom:44px}.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr)}.benefit-card{min-height:270px;padding:28px;border:1px solid var(--brand-line);border-left:0;background:var(--brand-surface)}.benefit-card:first-child{border-left:1px solid var(--brand-line)}.benefit-card>span{color:var(--brand-primary);font-weight:900}.benefit-card h3{margin:60px 0 14px;font-size:24px}.benefit-card p{margin:0;color:var(--brand-muted);line-height:1.75}.use-cases{background:var(--brand-primary-dark);color:var(--brand-surface)}.use-cases-shell{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;padding:100px 0}.use-cases-copy h2{margin:0;font-size:clamp(36px,5vw,62px);line-height:1.08;letter-spacing:-.045em}.use-cases-copy>p:last-child{color:var(--brand-on-dark-muted);line-height:1.8}.use-case-grid{display:grid;grid-template-columns:repeat(3,1fr)}.use-case-grid article{min-height:280px;padding:28px;border:1px solid color-mix(in srgb,var(--brand-surface) 18%,transparent);border-left:0;background:color-mix(in srgb,var(--brand-surface) 7%,transparent)}.use-case-grid article:first-child{border-left:1px solid color-mix(in srgb,var(--brand-surface) 18%,transparent)}.use-case-grid span{color:var(--brand-accent);font-size:11px;font-weight:900;letter-spacing:.12em}.use-case-grid h3{margin:70px 0 14px;font-size:24px}.use-case-grid p{margin:0;color:var(--brand-on-dark-muted);line-height:1.75}
@media(max-width:1000px){.benefit-grid{grid-template-columns:repeat(2,1fr)}.benefit-card:nth-child(3){border-left:1px solid var(--brand-line)}.benefit-card:nth-child(n+3){border-top:0}.use-cases-shell{grid-template-columns:1fr;gap:45px}.use-case-grid article{min-height:240px}}
@media(max-width:760px){.benefits{padding:10px 0 75px}.benefit-grid,.use-case-grid{grid-template-columns:1fr}.benefit-card,.benefit-card:nth-child(3),.use-case-grid article{min-height:auto;border-left:1px solid var(--brand-line);border-top:0}.benefit-card:first-child,.use-case-grid article:first-child{border-top:1px solid var(--brand-line)}.benefit-card h3,.use-case-grid h3{margin-top:34px}.use-cases-shell{width:calc(100% - 32px);padding:75px 0}.use-case-grid article{border-color:color-mix(in srgb,var(--brand-surface) 18%,transparent)}.use-case-grid article:first-child{border-left-color:color-mix(in srgb,var(--brand-surface) 18%,transparent);border-top-color:color-mix(in srgb,var(--brand-surface) 18%,transparent)}}