:root{--theme:#7d160b;--theme-dark:#5f1008;--theme-deep:#3d0905;--theme-light:#fff5f3;--theme-soft:#f7dfda;--theme-accent:#b74736;--theme-hover:#6b1209;--theme-border:rgba(125,22,11,.24);--header-bg:#4a0c06;--header-bg-2:#5f1008;--text-main:#3b1b17;--text-muted:#765a55;--on-theme:#ffffff;--on-header:#fff8f6;--on-dark:#fff8f6;--white:#ffffff;--shadow-soft:0 14px 38px rgba(74,12,6,.16);--radius:22px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--theme-light);color:var(--text-main);font-family:Arial,"Helvetica Neue",sans-serif;line-height:1.72;overflow-x:hidden}body.menu-open{overflow:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}button{font:inherit}.section{padding:68px 0}.section-inner{width:min(1280px,calc(100% - 80px));margin-left:auto;margin-right:auto}.site-header{position:sticky;top:0;z-index:9999;background:linear-gradient(180deg,var(--header-bg) 0%,var(--header-bg-2) 100%);color:var(--on-header);box-shadow:var(--shadow-soft);border-bottom:1px solid rgba(255,255,255,.12)}.header-inner{width:min(1400px,calc(100% - 48px));min-height:82px;margin:auto;display:grid;grid-template-columns:190px minmax(0,1fr) 138px;align-items:center;gap:20px}.site-logo{display:flex;align-items:center;justify-content:flex-start}.site-logo img,.drawer-logo img,.footer-brand img{max-width:190px;max-height:72px;width:auto;height:auto;object-fit:contain;display:block}.desktop-nav{display:flex;justify-content:center;align-items:center;gap:4px;min-width:0}.desktop-nav a{white-space:nowrap;padding:28px 8px 24px;font-size:14px;font-weight:700;color:var(--on-header);border-bottom:3px solid transparent;transition:.2s}.desktop-nav a:hover,.desktop-nav a.is-active{color:#fff;border-bottom-color:var(--theme-accent);background:rgba(255,255,255,.05)}.header-login,.main-btn{display:inline-flex;justify-content:center;align-items:center;min-height:46px;border-radius:12px;padding:0 18px;font-weight:800;background:linear-gradient(180deg,var(--theme-accent) 0%,var(--theme) 48%,var(--theme-dark) 100%);color:var(--on-theme);box-shadow:0 12px 26px rgba(0,0,0,.18);transition:.2s}.header-login:hover,.main-btn:hover{transform:translateY(-1px);background:linear-gradient(180deg,#c15645 0%,var(--theme-hover) 100%)}.mobile-menu-toggle{display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);border-radius:10px;padding:9px;cursor:pointer}.mobile-menu-toggle span{display:block;height:2px;background:var(--on-header);margin:5px 0}.mobile-drawer{position:fixed;z-index:10001;left:0;top:0;bottom:0;width:min(86vw,360px);padding:20px;background:linear-gradient(180deg,var(--header-bg),var(--theme-deep));color:var(--on-dark);transform:translateX(-105%);transition:transform .25s ease;overflow:auto}.mobile-drawer.is-open{transform:translateX(0)}.drawer-overlay{position:fixed;z-index:10000;inset:0;background:rgba(61,9,5,.55);opacity:0;visibility:hidden;transition:.25s}.drawer-overlay.is-open{opacity:1;visibility:visible}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.14)}.drawer-close{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);color:#fff;font-size:25px;cursor:pointer}.drawer-nav{display:grid;padding-top:12px}.drawer-nav a{padding:12px 10px;border-bottom:1px solid rgba(255,255,255,.1);font-weight:700}
.banner-section{padding:32px 0 24px;background:linear-gradient(180deg,var(--theme-light) 0%,var(--theme-soft) 100%)}.banner-carousel{position:relative;width:100%;overflow:hidden;border-radius:28px;background:var(--theme-soft);border:1px solid var(--theme-border);box-shadow:var(--shadow-soft)}.banner-slide{display:none;align-items:center;justify-content:center}.banner-slide.active{display:flex}.banner-slide img{display:block;width:100%;height:auto;object-fit:contain}.banner-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:46px;height:46px;border:1px solid rgba(255,255,255,.45);border-radius:50%;background:rgba(61,9,5,.72);color:var(--on-dark);font-size:30px;line-height:1;cursor:pointer;display:grid;place-items:center}.banner-arrow:hover{background:var(--theme-dark)}.banner-prev{left:18px}.banner-next{right:18px}.banner-dots{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);display:flex;gap:8px;z-index:4}.banner-dots button{width:11px;height:11px;padding:0;border:1px solid rgba(255,255,255,.9);border-radius:50%;background:rgba(255,255,255,.55);cursor:pointer}.banner-dots button.active{width:28px;border-radius:999px;background:var(--theme-accent)}.intro-section{padding:30px 0 18px}.intro-card{padding:30px 34px;border-radius:24px;background:linear-gradient(135deg,var(--white),var(--theme-soft));border:1px solid var(--theme-border);box-shadow:var(--shadow-soft)}.intro-card h2{color:var(--theme-dark);font-size:clamp(28px,2.8vw,40px);line-height:1.2;margin:12px 0}.intro-card p{margin:0;color:var(--text-muted);font-size:17px}.headline-section{padding:30px 0 58px}.headline-card{padding:34px;border-radius:28px;background:radial-gradient(circle at 90% 15%,var(--theme-soft) 0,transparent 34%),linear-gradient(135deg,var(--white),var(--theme-light));border:1px solid var(--theme-border);box-shadow:var(--shadow-soft)}.headline-card h1{max-width:940px;margin:14px 0 18px;color:var(--theme-dark);font-size:clamp(38px,4vw,60px);line-height:1.08;letter-spacing:-.025em}.headline-card p{max-width:1050px;margin:0;color:var(--text-muted);font-size:18px;line-height:1.8}.headline-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.headline-tags span{padding:8px 14px;border-radius:999px;background:var(--theme-soft);border:1px solid var(--theme-border);color:var(--theme-dark);font-weight:800}.page-kicker{display:inline-flex;padding:8px 13px;border-radius:999px;background:var(--theme-soft);border:1px solid var(--theme-border);color:var(--theme-dark);font-size:14px;font-weight:800}.category-pills,.related-links{display:flex;flex-wrap:wrap;gap:10px}.section-heading{max-width:820px;margin:0 auto 34px;text-align:center}.section-heading small{color:var(--theme);font-weight:800;text-transform:uppercase;letter-spacing:.08em}.section-heading h2{color:var(--theme-dark);font-size:clamp(30px,3vw,44px);line-height:1.15;margin:8px 0 12px}.section-heading p{color:var(--text-muted);margin:0}.info-section{padding:42px 0 26px}.info-grid,.service-grid,.feature-grid,.feedback-grid,.faq-grid,.content-wall{display:grid;gap:20px}.info-grid{grid-template-columns:repeat(4,1fr)}.info-card,.service-card,.feature-card,.feedback-card,.faq-card,.content-card{height:100%;padding:26px;border-radius:var(--radius);background:var(--white);border:1px solid var(--theme-border);box-shadow:0 12px 30px rgba(125,22,11,.08)}.info-card>span{display:inline-grid;place-items:center;width:46px;height:46px;border-radius:14px;background:var(--theme-soft);color:var(--theme-dark);font-weight:900}.info-card h2,.service-card h3,.feature-card h3,.content-card h3,.faq-card h3{color:var(--theme-dark);line-height:1.25;margin:14px 0 9px}.info-card p,.service-card p,.feature-card p,.content-card p,.feedback-card p,.faq-card p{color:var(--text-muted);margin:0}.category-section{padding:24px 0 64px}.category-pills{justify-content:center}.category-pills a,.related-links a{display:inline-flex;align-items:center;padding:9px 14px;border-radius:999px;background:var(--white);color:var(--theme-dark);border:1px solid var(--theme-border);font-weight:800;transition:.2s}.category-pills a:hover,.related-links a:hover{background:linear-gradient(180deg,var(--theme-accent),var(--theme));color:var(--on-theme)}.core-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.core-card{padding:26px;border-radius:20px;background:linear-gradient(145deg,#fff,var(--theme-soft));border:1px solid var(--theme-border);min-height:210px;display:flex;flex-direction:column}.core-card strong{color:var(--theme);font-size:13px}.core-card h3{font-size:23px;color:var(--theme-dark);margin:8px 0}.core-card p{color:var(--text-muted);flex:1}.text-link{font-weight:800;color:var(--theme-dark)}.service-grid{grid-template-columns:repeat(3,1fr)}.alt-section{background:var(--theme-light)}.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.split.reverse .split-text{order:2}.split.reverse .media-box{order:1}.split-text h2{font-size:clamp(30px,3vw,44px);line-height:1.18;color:var(--theme-dark);margin:0 0 18px}.split-text p{color:var(--text-muted)}.media-box,.app-visual{min-height:320px;padding:30px;border-radius:28px;background:var(--theme-soft);border:1px solid var(--theme-border);box-shadow:var(--shadow-soft)}.media-box img,.app-visual img,.card-media img{max-width:100%;max-height:310px;width:auto;height:auto;object-fit:contain}.app-section{background:linear-gradient(135deg,var(--theme-deep),var(--header-bg-2));color:var(--on-dark)}.app-section .split-text h2,.app-section .split-text p{color:var(--on-dark)}.app-section .app-visual{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18)}.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.news-panel{padding:30px;border-radius:24px;background:var(--white);border:1px solid var(--theme-border)}.news-panel h2{color:var(--theme-dark)}.news-panel ul,.topic-list{padding-left:20px;color:var(--text-muted)}.feedback-grid{grid-template-columns:repeat(3,1fr)}.feedback-card{position:relative;padding-top:38px}.feedback-card:before{content:'“';position:absolute;left:24px;top:6px;font-size:48px;color:var(--theme-accent);line-height:1}.notice{padding:26px 28px;border-radius:22px;background:var(--theme-soft);border-left:5px solid var(--theme);color:var(--text-main)}.notice strong{color:var(--theme-dark)}.faq-grid{grid-template-columns:repeat(2,1fr)}
.page-hero{padding:64px 0 46px;background:linear-gradient(135deg,var(--theme-light),#fff,var(--theme-soft))}.page-hero-inner{width:min(1280px,calc(100% - 80px));margin:auto;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(330px,.85fr);gap:52px;align-items:center}.page-hero h1{font-size:clamp(38px,4vw,58px)}.page-hero p{font-size:18px;color:var(--text-muted);max-width:790px}.page-visual{min-height:300px;padding:28px;border-radius:28px;background:#fff;border:1px solid var(--theme-border);box-shadow:var(--shadow-soft);display:flex;align-items:center;justify-content:center}.page-visual img{max-width:100%;max-height:300px;width:auto;height:auto;object-fit:contain}.article-section{padding:62px 0}.article-section.alt{background:var(--theme-light)}.article-copy{max-width:1000px;margin:auto}.article-copy h2{color:var(--theme-dark);font-size:34px;line-height:1.22;margin:0 0 18px}.article-copy p{font-size:17px;color:var(--text-muted);margin:0 0 18px}.feature-grid{grid-template-columns:repeat(3,1fr);margin-top:28px}.feature-card .mini-label{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--theme);font-weight:900}.tips-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;padding:0;list-style:none}.tips-list li{padding:18px 20px;border-radius:16px;background:var(--white);border:1px solid var(--theme-border);color:var(--text-muted)}.tips-list strong{display:block;color:var(--theme-dark);margin-bottom:4px}.page-feedback{padding:56px 0;background:var(--theme-soft)}.page-feedback .feedback-grid{grid-template-columns:repeat(2,1fr)}.page-faq{padding:60px 0}.compliance-section{padding:52px 0}.compliance-box{padding:28px 30px;border-radius:24px;background:linear-gradient(135deg,var(--theme-deep),var(--header-bg-2));color:var(--on-dark)}.compliance-box h2{margin-top:0;color:#fff}.related-section{padding:36px 0 68px}.related-links{justify-content:center}
.site-footer{background:var(--theme-deep);color:var(--on-dark);padding-top:58px}.footer-inner{width:min(1280px,calc(100% - 80px));margin:auto;display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:38px;padding-bottom:42px}.site-footer h2{font-size:17px;margin:0 0 14px;color:#fff}.site-footer a{display:block;padding:5px 0;color:var(--on-dark)}.site-footer a:hover{color:#fff}.footer-brand p{color:var(--on-dark)}.footer-notice{border-top:1px solid rgba(255,255,255,.12);padding:24px 0 32px;color:var(--on-dark)}.footer-notice strong{color:#fff}.footer-notice p{margin:6px 0 0}
@media (max-width:1180px){.header-inner{grid-template-columns:170px minmax(0,1fr) 128px}.desktop-nav{gap:0}.desktop-nav a{font-size:12px;padding-left:5px;padding-right:5px}.core-grid{grid-template-columns:repeat(3,1fr)}}
@media (min-width:1024px){.mobile-drawer,.drawer-overlay{display:none!important}}
@media (min-width:768px) and (max-width:1023px){.desktop-nav{display:none}.mobile-menu-toggle{display:block}.header-inner{grid-template-columns:48px 1fr 132px}.site-logo{justify-content:center}.page-hero-inner{grid-template-columns:1fr 1fr;gap:34px}.info-grid{grid-template-columns:repeat(2,1fr)}.core-grid{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:repeat(2,1fr)}.footer-inner{grid-template-columns:1.4fr 1fr 1fr}.footer-inner>div:last-child{grid-column:2/4}}
@media (max-width:767px){.section,.article-section{padding:48px 0}.section-inner,.page-hero-inner,.footer-inner{width:min(calc(100% - 32px),1280px)}.header-inner{width:calc(100% - 20px);min-height:68px;grid-template-columns:42px minmax(0,1fr) 112px;gap:8px}.desktop-nav{display:none}.mobile-menu-toggle{display:block}.site-logo{justify-content:center}.site-logo img{max-width:132px;max-height:52px}.header-login{min-height:40px;padding:0 10px;font-size:12px}.banner-section{padding:20px 0 16px}.banner-carousel{border-radius:18px}.banner-arrow{width:36px;height:36px;font-size:24px}.banner-prev{left:8px}.banner-next{right:8px}.banner-dots{bottom:8px}.intro-card,.headline-card{padding:24px}.headline-card h1{font-size:clamp(32px,9.5vw,46px);max-width:100%;overflow-wrap:anywhere}.headline-card p,.page-hero p{font-size:16px}.page-hero-inner{min-height:auto;grid-template-columns:1fr;gap:28px}.info-grid,.core-grid,.service-grid,.news-grid,.feedback-grid,.faq-grid,.feature-grid,.tips-list,.page-feedback .feedback-grid{grid-template-columns:1fr}.category-pills{justify-content:flex-start}.split{grid-template-columns:1fr;gap:28px}.split.reverse .split-text,.split.reverse .media-box{order:initial}.media-box,.app-visual,.page-visual{min-height:240px;padding:22px}.article-copy h2{font-size:28px}.footer-inner{grid-template-columns:1fr;gap:26px}.footer-inner>div{border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:18px}.footer-inner>div:last-child{border-bottom:0}.footer-notice .section-inner{width:min(calc(100% - 32px),1280px)}}

@media (min-width:1280px){.section-inner,.page-hero-inner,.footer-inner{width:min(1280px,calc(100% - 80px))}.header-inner{width:min(1400px,calc(100% - 64px))}}

@media (min-width:1440px){.section-inner,.page-hero-inner,.footer-inner{width:min(1360px,calc(100% - 120px))}.header-inner{width:min(1440px,calc(100% - 80px))}}

/* CHATGPT_MOBILE_HEADER_V4_START */
@media (max-width: 767px) {
  html, body {
    width: 100% !important;
    max-width: 100% !important;
    overflow-x: hidden !important;
  }

  .site-header {
    width: 100% !important;
    max-width: 100% !important;
    overflow: visible !important;
  }

  .header-inner {
    display: flex !important;
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    min-height: 64px !important;
    margin: 0 !important;
    padding: 0 10px !important;
    gap: 8px !important;
    box-sizing: border-box !important;
    align-items: center !important;
    justify-content: space-between !important;
  }

  /* Stable hamburger: do not rely on three flex children. */
  .mobile-menu-toggle {
    display: flex !important;
    position: relative !important;
    flex: 0 0 40px !important;
    width: 40px !important;
    min-width: 40px !important;
    max-width: 40px !important;
    height: 40px !important;
    min-height: 40px !important;
    max-height: 40px !important;
    margin: 0 !important;
    padding: 0 !important;
    box-sizing: border-box !important;
    align-items: center !important;
    justify-content: center !important;
    color: var(--on-header, #fff) !important;
    opacity: 1 !important;
    visibility: visible !important;
  }

  .mobile-menu-toggle span {
    display: none !important;
  }

  .mobile-menu-toggle::before {
    content: "" !important;
    display: block !important;
    position: absolute !important;
    left: 50% !important;
    top: 50% !important;
    width: 20px !important;
    height: 2px !important;
    margin-left: -10px !important;
    margin-top: -1px !important;
    border-radius: 2px !important;
    background: currentColor !important;
    box-shadow: 0 -6px 0 currentColor, 0 6px 0 currentColor !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: none !important;
  }

  .site-logo {
    display: flex !important;
    flex: 1 1 auto !important;
    width: auto !important;
    min-width: 0 !important;
    max-width: none !important;
    margin: 0 !important;
    padding: 0 !important;
    align-items: center !important;
    justify-content: center !important;
    overflow: hidden !important;
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    border-radius: 0 !important;
  }

  .site-logo img {
    display: block !important;
    width: auto !important;
    height: auto !important;
    max-width: min(112px, 100%) !important;
    max-height: 44px !important;
    margin: 0 auto !important;
    padding: 0 !important;
    object-fit: contain !important;
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    border-radius: 0 !important;
  }

  .header-actions {
    display: flex !important;
    flex: 0 0 auto !important;
    min-width: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    justify-content: flex-end !important;
  }

  .header-login,
  .header-actions .main-btn {
    display: inline-flex !important;
    flex: 0 0 92px !important;
    width: 92px !important;
    min-width: 92px !important;
    max-width: 92px !important;
    min-height: 38px !important;
    padding: 8px 4px !important;
    margin: 0 !important;
    box-sizing: border-box !important;
    align-items: center !important;
    justify-content: center !important;
    white-space: nowrap !important;
    overflow: visible !important;
    text-overflow: clip !important;
    font-size: 10px !important;
    line-height: 1 !important;
    letter-spacing: 0 !important;
  }

  .drawer-logo,
  .footer-logo {
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    border-radius: 0 !important;
  }

  .drawer-logo img,
  .footer-logo img {
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    border-radius: 0 !important;
  }
}

@media (max-width: 359px) {
  .header-inner {
    padding-left: 6px !important;
    padding-right: 6px !important;
    gap: 5px !important;
  }

  .mobile-menu-toggle {
    flex-basis: 38px !important;
    width: 38px !important;
    min-width: 38px !important;
    max-width: 38px !important;
    height: 38px !important;
  }

  .site-logo img {
    max-width: min(102px, 100%) !important;
  }

  .header-login,
  .header-actions .main-btn {
    flex-basis: 84px !important;
    width: 84px !important;
    min-width: 84px !important;
    max-width: 84px !important;
    font-size: 9.5px !important;
  }
}
/* CHATGPT_MOBILE_HEADER_V4_END */