:root {
  --bg: #07131b;
  --bg-alt: #0a1923;
  --surface: #0d202b;
  --surface-2: #102732;
  --ink: #f2f7f6;
  --muted: #91a7b0;
  --line: rgba(255,255,255,.11);
  --line-strong: rgba(255,255,255,.18);
  --accent: #22c9a0;
  --accent-2: #59e0bc;
  --accent-soft: rgba(34,201,160,.12);
  --accent-ink: #031612;
  --shadow: 0 28px 70px rgba(0,0,0,.28);
  --section-pad: 118px;
  --nav-height: 78px;
  --radius-lg: 30px;
  --radius-md: 20px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  scroll-snap-type: y mandatory;
  overscroll-behavior-y: contain;
}
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: "Noto Sans SC", "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
body.modal-open { overflow: hidden; }
a { color: inherit; }
button, input { font: inherit; }
img { max-width: 100%; }
.container { width: min(1280px, calc(100% - 56px)); margin-inline: auto; }

.demo-loading {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: var(--bg);
  color: var(--muted);
}
.demo-loading span { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 8px var(--accent-soft); }

.demo-switcher {
  position: fixed;
  z-index: 9000;
  right: 18px;
  bottom: 18px;
  display: flex;
  gap: 5px;
  align-items: center;
  padding: 7px;
  border: 1px solid rgba(127,145,154,.28);
  border-radius: 999px;
  background: rgba(5,14,21,.88);
  box-shadow: 0 16px 44px rgba(0,0,0,.25);
  backdrop-filter: blur(18px);
}
.demo-switcher a { padding: 8px 12px; border-radius: 999px; color: #9fb0b7; font-size: .75rem; font-weight: 700; text-decoration: none; white-space: nowrap; }
.demo-switcher a:hover, .demo-switcher a.active { background: #28cba2; color: #03140f; }
.demo-switcher .demo-back { color: #d8e2e3; }

/* Navigation */
.navbar {
  position: sticky;
  z-index: 1000;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  backdrop-filter: blur(20px) saturate(140%);
  transition: box-shadow .25s ease, background .25s ease;
}
.navbar.scrolled { box-shadow: 0 14px 40px rgba(0,0,0,.12); }
.navbar > .container { display: flex; min-height: 78px; align-items: center; justify-content: space-between; gap: 28px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-family: "Sora", sans-serif; font-weight: 800; text-decoration: none; }
.logo-img { width: 150px; height: 48px; object-fit: contain; object-position: left center; }
.logo-ver { padding: 5px 9px; border: 1px solid var(--line); border-radius: 999px; background: var(--accent-soft); color: var(--accent); font: 700 .72rem/1 "Sora", sans-serif; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { position: relative; color: var(--muted); font-size: .88rem; font-weight: 650; text-decoration: none; white-space: nowrap; transition: color .2s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a::after { position: absolute; right: 0; bottom: -9px; left: 0; height: 2px; border-radius: 2px; background: var(--accent); content: ""; opacity: 0; transform: scaleX(.3); transition: .2s ease; }
.nav-links a:hover::after, .nav-links a.active::after { opacity: 1; transform: scaleX(1); }
.hamburger { display: none; color: var(--ink); cursor: pointer; font-size: 1.25rem; }

/* Shared type and actions */
.section-title { margin: 0 0 16px; color: var(--ink); font-size: clamp(2.2rem, 4.2vw, 4rem); line-height: 1.08; letter-spacing: -.05em; }
.section-description { max-width: 850px; margin: 0 auto 10px; color: var(--muted); font-size: 1rem; line-height: 1.8; text-align: center; }
.section-description + .section-description { margin-top: 5px; }
.btn-primary, .btn-secondary {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease;
}
.btn-primary { border-color: var(--accent); background: var(--accent); color: var(--accent-ink); box-shadow: 0 14px 30px color-mix(in srgb, var(--accent) 25%, transparent); }
.btn-primary:hover { background: var(--accent-2); transform: translateY(-2px); }
.btn-secondary { border-color: var(--line-strong); background: color-mix(in srgb, var(--surface) 72%, transparent); color: var(--ink); }
.btn-secondary:hover { border-color: var(--accent); transform: translateY(-2px); }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 108px 0 116px; background: var(--bg); }
.hero-grid { position: relative; z-index: 2; display: grid; align-items: start; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr); gap: 72px; }
.hero-content { max-width: 790px; }
.hero-badge { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 24px; color: var(--accent); font: 750 .78rem/1 "Sora", sans-serif; letter-spacing: .16em; text-transform: uppercase; }
.hero-badge::before { width: 34px; height: 2px; background: currentColor; content: ""; }
.hero h1 { margin: 0; font-size: clamp(3rem, 6.5vw, 6.4rem); line-height: .98; letter-spacing: -.068em; }
.text-accent { color: var(--accent); }
.hero-features { display: grid; margin: 38px 0 0; padding: 0; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 22px; list-style: none; }
.hero-features li { position: relative; padding-left: 22px; color: var(--muted); font-size: .9rem; line-height: 1.65; }
.hero-features li::before { position: absolute; top: .58em; left: 0; width: 8px; height: 8px; border: 2px solid var(--accent); border-radius: 50%; content: ""; box-shadow: 0 0 0 4px var(--accent-soft); }
.btn-container { display: flex; flex-wrap: wrap; gap: 11px; margin-top: 38px; }
.hero-stats { display: grid; gap: 14px; }
.stat-card { display: flex; min-height: 112px; align-items: center; gap: 18px; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius-md); background: color-mix(in srgb, var(--surface) 88%, transparent); box-shadow: 0 16px 44px rgba(0,0,0,.1); }
.stat-icon { display: grid; flex: 0 0 48px; width: 48px; height: 48px; place-items: center; border-radius: 14px; background: var(--accent-soft); color: var(--accent); }
.stat-number { color: var(--ink); font: 800 1.8rem/1 "Sora", sans-serif; letter-spacing: -.04em; }
.stat-label { margin-top: 7px; color: var(--muted); font-size: .82rem; }
.hero-product-preview { position: relative; z-index: 2; margin-top: 74px; }
.workspace-preview {
  position: relative;
  display: grid;
  min-height: calc(100svh - var(--nav-height));
  align-items: center;
  padding: 66px 0;
  background: var(--bg);
  scroll-margin-top: var(--nav-height);
  scroll-snap-align: start;
  scroll-snap-stop: always;
}
.workspace-preview .hero-product-preview { margin-top: 0; }
.preview-window { overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow); }
.preview-window-bar { display: flex; height: 66px; align-items: center; justify-content: space-between; padding: 0 24px; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--surface-2) 90%, transparent); }
.preview-window-dots { display: flex; gap: 8px; }
.preview-window-dots span { width: 9px; height: 9px; border-radius: 50%; background: var(--line-strong); }
.preview-status { display: flex; align-items: center; gap: 8px; color: var(--accent); font-size: .76rem; font-weight: 700; }
.preview-status > span, .preview-sidebar-foot > span { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 6px var(--accent-soft); }
.preview-app { display: grid; min-height: 700px; grid-template-columns: 250px minmax(0, 1fr); }
.preview-sidebar { display: flex; min-height: 0; flex-direction: column; padding: 30px 18px 20px; border-right: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 88%, var(--surface)); }
.preview-brand { font: 800 1.28rem/1 "Sora", sans-serif; letter-spacing: .04em; }
.preview-project-id, .preview-report-kicker, .preview-panel-head small { color: var(--muted); font: 750 .62rem/1.3 "Sora", sans-serif; letter-spacing: .13em; }
.preview-project-id { margin-top: 12px; }
.preview-menu-scroll { overflow: hidden; margin-top: 34px; }
.preview-menu-section-title { margin: 14px 8px 8px; color: var(--muted); font-size: .67rem; font-weight: 700; letter-spacing: .08em; }
.preview-menu-section-title.expanded { display: flex; align-items: center; justify-content: space-between; padding: 10px; border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent); border-radius: 9px; background: var(--accent-soft); color: var(--ink); }
.preview-menu-section-title b { padding: 3px 5px; border-radius: 5px; background: var(--accent-soft); color: var(--accent); font-size: .54rem; }
.preview-menu-item, .preview-menu-subtitle { display: flex; min-height: 30px; align-items: center; gap: 8px; padding: 6px 9px; color: var(--muted); font-size: .65rem; }
.preview-menu-item i, .preview-menu-subtitle i { width: 13px; color: var(--accent); text-align: center; }
.preview-menu-item.active { border-radius: 8px; background: var(--accent-soft); color: var(--accent); }
.preview-menu-item.active i:last-child { margin-left: auto; }
.preview-menu-subtitle { margin-top: 6px; color: var(--ink); font-weight: 650; }
.preview-menu-branch { margin-left: 16px; border-left: 1px solid var(--line); }
.preview-menu-divider { height: 1px; margin: 7px 8px; background: var(--line); }
.preview-sidebar-foot { display: flex; align-items: center; gap: 8px; margin-top: auto; padding: 16px 8px 2px; border-top: 1px solid var(--line); color: var(--muted); font-size: .64rem; }
.preview-report { min-width: 0; padding: 34px; background: color-mix(in srgb, var(--surface) 94%, var(--bg)); }
.preview-workspace-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.preview-workspace-head h2 { margin: 12px 0 0; font-size: 1.55rem; letter-spacing: -.035em; }
.preview-head-tags { display: flex; gap: 7px; }
.preview-head-tags span, .preview-panel-chip, .preview-pvalue, .preview-writing-progress { padding: 7px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font: 700 .64rem/1 "Sora", sans-serif; white-space: nowrap; }
.preview-pvalue { border-color: color-mix(in srgb, var(--accent) 35%, transparent); color: var(--accent); }
.preview-workflow-strip { display: grid; margin: 24px 0 20px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 13px; grid-template-columns: repeat(4, 1fr); }
.preview-workflow-strip > div { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: .65rem; }
.preview-workflow-strip .done i { color: var(--accent); }
.preview-workflow-strip .active { color: var(--ink); font-weight: 700; }
.preview-pro-grid { display: grid; grid-template-columns: 1.45fr .95fr; gap: 16px; }
.preview-pro-panel { min-width: 0; min-height: 250px; padding: 20px; border: 1px solid var(--line); border-radius: 17px; background: color-mix(in srgb, var(--surface-2) 86%, transparent); }
.preview-panel-head { display: flex; align-items: start; justify-content: space-between; gap: 12px; }
.preview-panel-head h3 { margin: 7px 0 0; font-size: .98rem; }
.preview-journal-table { width: 100%; margin-top: 16px; border-collapse: collapse; color: var(--muted); font-size: .63rem; }
.preview-journal-table th, .preview-journal-table td { padding: 9px 7px; border-bottom: 1px solid var(--line); text-align: right; }
.preview-journal-table th:first-child, .preview-journal-table td:first-child { text-align: left; }
.preview-journal-table th { border-top: 1px solid var(--line-strong); color: var(--ink); }
.preview-diagnostic-row, .preview-output-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 12px; }
.preview-diagnostic-row span, .preview-output-row span { padding: 6px 8px; border-radius: 7px; background: var(--accent-soft); color: var(--muted); font-size: .56rem; }
.preview-diagnostic-row i, .preview-output-row i { color: var(--accent); }
.preview-km-chart { position: relative; height: 150px; margin-top: 16px; border-bottom: 1px solid var(--line); border-left: 1px solid var(--line); }
.preview-km-grid { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg,var(--line) 1px,transparent 1px); background-size: 100% 33.33%, 25% 100%; opacity: .55; }
.preview-y-label { position: absolute; left: 4px; color: var(--muted); font-size: .52rem; }.preview-y-label.y100{top:3px}.preview-y-label.y50{top:50%}
.preview-km-curve { position: absolute; inset: 0; }
.preview-km-curve i { position: absolute; display: block; background: var(--accent); }
.preview-km-curve i.h { left: var(--x); top: var(--y); width: var(--w); height: 2px; }.preview-km-curve i.v { left: var(--x); top: var(--y); width: 2px; height: var(--h); }
.preview-km-curve.curve-b i { background: #6397ff; }
.preview-km-legend { position: absolute; right: 8px; bottom: 8px; display: flex; gap: 9px; padding: 5px 7px; border-radius: 7px; background: color-mix(in srgb, var(--bg) 82%, transparent); color: var(--muted); font-size: .5rem; }
.preview-km-legend i { position: static; display: inline-block; width: 10px; height: 2px; margin-right: 3px; background: var(--accent); }.preview-km-legend span:last-child i{background:#6397ff}
.preview-risk-row { display: grid; margin-top: 10px; grid-template-columns: 1fr repeat(4, auto); gap: 16px; color: var(--muted); font-size: .52rem; }.preview-risk-row strong{color:var(--ink)}
.preview-forest-columns, .preview-forest-row { display: grid; align-items: center; grid-template-columns: 1fr 1.15fr 1.25fr .7fr; gap: 8px; }
.preview-forest-columns { margin-top: 15px; padding-bottom: 8px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .52rem; }
.preview-forest-body { position: relative; }.preview-forest-row{min-height:31px;border-bottom:1px solid var(--line);color:var(--muted);font-size:.55rem}.preview-forest-row strong{color:var(--ink);font-size:.57rem}.preview-forest-row em{font-style:normal}
.preview-forest-track { position: relative; height: 20px; }.preview-forest-track > i { position: absolute; top: 9px; height: 2px; background: #6397ff; }.preview-forest-track b{position:absolute;top:-4px;width:9px;height:9px;border:2px solid #91b4ff;background:#3267be;transform:rotate(45deg)}
.preview-forest-axis { display: flex; justify-content: space-around; padding: 6px 30% 0 22%; color: var(--muted); font-size: .5rem; }
.preview-manuscript-tabs { display: flex; gap: 10px; margin-top: 16px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .52rem; }.preview-manuscript-tabs span{padding:6px}.preview-manuscript-tabs .active{border-radius:5px 5px 0 0;background:var(--accent-soft);color:var(--accent)}
.preview-manuscript-copy { margin-top: 12px; padding: 13px; border: 1px solid var(--line); border-radius: 10px; color: var(--muted); font: .58rem/1.55 Georgia,serif; }.preview-manuscript-copy strong{color:var(--ink)}.preview-manuscript-copy p{margin:8px 0 0}

/* Content sections */
.products, .software-intro, .users, .papers, .cta, .faq-section { position: relative; padding: var(--section-pad) 0; }
.hero,
.workspace-preview,
.products,
.software-intro,
.users,
.papers,
.cta,
.faq-section {
  min-height: calc(100svh - var(--nav-height));
  scroll-margin-top: var(--nav-height);
  scroll-snap-align: start;
  scroll-snap-stop: always;
}
.products,
.workspace-preview,
.software-intro,
.users,
.papers,
.cta,
.faq-section {
  display: grid;
  align-items: center;
}
.footer {
  min-height: calc(100svh - var(--nav-height));
  scroll-snap-align: start;
  scroll-snap-stop: always;
}
.products, .users, .faq-section { background: var(--bg-alt); }
.products .section-title, .users .section-title, .papers .section-title, .faq-section .section-title { text-align: center; }
.product-cards { display: grid; margin-top: 54px; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.product-card { position: relative; display: flex; min-height: 510px; flex-direction: column; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); color: inherit; text-decoration: none; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
.product-card:hover { transform: translateY(-8px); border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); box-shadow: var(--shadow); }
.product-card.featured { border-color: color-mix(in srgb, var(--accent) 55%, transparent); background: linear-gradient(160deg, var(--accent-soft), var(--surface) 36%); }
.product-icon { display: grid; width: 52px; height: 52px; place-items: center; border-radius: 15px; background: var(--accent-soft); color: var(--accent); font-size: 1.15rem; }
.product-badge { position: absolute; top: 26px; right: 26px; padding: 7px 11px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-size: .7rem; font-weight: 800; }
.product-card h3 { min-height: 70px; margin: 28px 0 16px; font-size: 1.25rem; line-height: 1.45; letter-spacing: -.025em; }
.product-card > p { margin: 0; color: var(--muted); font-size: .9rem; line-height: 1.8; }
.product-features { display: grid; margin: 27px 0 30px; padding: 0; gap: 9px; list-style: none; }
.product-features li { display: flex; gap: 9px; color: var(--muted); font-size: .85rem; }.product-features i{margin-top:6px;color:var(--accent);font-size:.7rem}
.product-card > .btn-primary { width: 100%; margin-top: auto; }

.software-intro-content { margin-top: 48px; }
.title-container h3 { margin: 0; color: var(--accent); font: 750 .82rem/1.2 "Sora",sans-serif; letter-spacing: .13em; text-transform: uppercase; }
.software-intro-content > h4 { margin: 54px 0 18px; font-size: 1.5rem; letter-spacing: -.03em; }
.highlight-box { padding: 36px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.highlight-box p { margin: 0; color: var(--muted); line-height: 1.9; }.highlight-box p+p{margin-top:16px}
.features-table-container, .advantages-table-container { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }
.features-table, .advantages-table { width: 100%; border-collapse: collapse; }
.features-table th, .features-table td, .advantages-table th, .advantages-table td { padding: 18px 22px; border-bottom: 1px solid var(--line); text-align: left; }
.features-table th, .advantages-table th { background: var(--accent-soft); color: var(--accent); font-size: .8rem; letter-spacing: .04em; }
.features-table td, .advantages-table td { color: var(--muted); font-size: .9rem; }.features-table td:first-child,.advantages-table td:first-child{width:28%;color:var(--ink)}

.video-container { display: grid; margin-top: 48px; grid-template-columns: repeat(2,1fr); gap: 22px; }
.video-item { overflow: hidden; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); box-shadow: 0 18px 45px rgba(0,0,0,.1); }.video-item h3{margin:0 0 18px;font-size:1.1rem}.video-item>div{overflow:hidden;border-radius:13px;background:#02070a}
.papers-container { max-height: 760px; overflow: auto; margin-top: 46px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-md); background: var(--surface); }.papers-image{display:block;width:100%;border-radius:12px}
.cta { overflow: hidden; text-align: center; background: var(--accent); color: var(--accent-ink); }.cta h2{margin:0;font-size:clamp(2.4rem,5vw,4.7rem);letter-spacing:-.055em}.cta> .container > p{margin:16px 0 34px;font-size:1.05rem}
.qrcode-container { width: min(420px,100%); margin: auto; padding: 24px; border-radius: var(--radius-md); background: color-mix(in srgb, white 82%, transparent); box-shadow: 0 22px 55px rgba(0,0,0,.18); }.qrcode-image{width:180px;border-radius:12px}.qrcode-text{margin:13px 0 4px;font-weight:800}.qrcode-description{margin:0;opacity:.68}
.faq-list { display: grid; max-width: 920px; margin: 48px auto 0; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: 15px; background: var(--surface); }.faq-item summary{display:flex;min-height:68px;align-items:center;justify-content:space-between;gap:18px;padding:18px 22px;font-weight:750;cursor:pointer;list-style:none}.faq-item summary::after{content:"+";color:var(--accent);font-size:1.4rem}.faq-item[open] summary::after{content:"−"}.faq-answer{padding:0 22px 22px;color:var(--muted);line-height:1.85}.faq-answer p{margin:0}
.footer { padding: 72px 0 30px; border-top: 1px solid var(--line); background: var(--bg); }.footer-content{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:40px}.footer-logo p{color:var(--muted)}.footer-logo .logo-img{display:none}.footer-logo .logo{font-size:1.4rem}.logo-m{color:var(--accent)}.footer-links h4{margin:0 0 16px}.footer-links ul{margin:0;padding:0;list-style:none}.footer-links li+li{margin-top:8px}.footer-links a{color:var(--muted);text-decoration:none}.footer-links a:hover{color:var(--accent)}.social-icons{display:flex;gap:10px}.social-icons a{display:grid;width:38px;height:38px;place-items:center;border:1px solid var(--line);border-radius:10px}.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:.8rem}

/* Modal */
.modal { position: fixed; z-index: 5000; inset: 0; display: none; overflow-y: auto; padding: 48px 20px; background: rgba(0,0,0,.72); backdrop-filter: blur(14px); }.modal.open{display:block}.modal-content{position:relative;width:min(1060px,100%);margin:auto;padding:52px;border:1px solid var(--line-strong);border-radius:28px;background:var(--bg-alt);box-shadow:0 30px 100px rgba(0,0,0,.45)}.close-btn{position:absolute;top:18px;right:20px;display:grid;width:42px;height:42px;place-items:center;border:1px solid var(--line);border-radius:50%;color:var(--muted);font-size:1.5rem;cursor:pointer}.vip-title{margin:0;text-align:center;font-size:1.8rem}.vip-title i{color:var(--accent)}.vip-tag{display:inline-flex;padding:5px 9px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-size:.5em;vertical-align:.25em}.vip-login-top,.vip-login-bottom{display:flex;justify-content:center;margin:28px 0}.vip-btn.large{width:min(680px,100%);min-height:62px;font-size:1.05rem}.pricing-cards-row{display:grid;margin:30px 0;grid-template-columns:repeat(3,1fr);gap:14px}.pricing-card{position:relative;padding:25px;border:1px solid var(--line);border-radius:18px;background:var(--surface);text-align:center;text-decoration:none}.pricing-card:hover{border-color:var(--accent)}.pricing-card h3{margin:0}.price{margin:17px 0}.original-price{text-decoration:line-through;color:var(--muted)}.current-price{margin-left:8px;color:var(--accent);font:800 1.7rem/1 "Sora",sans-serif}.pricing-card p{margin:0;color:var(--muted)}.popular-tag{position:absolute;top:-10px;left:50%;padding:5px 9px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font-size:.65rem;font-weight:800;transform:translateX(-50%)}.info-card{margin-top:14px;padding:24px;border:1px solid var(--line);border-radius:17px;background:var(--surface);color:var(--muted);font-size:.9rem}.info-card p{margin:0 0 8px}.login-issues h3{color:var(--ink)}.login-issues li+li{margin-top:8px}.wechat-qr-code{text-align:center}.qr-code-img{width:180px;border-radius:12px}

@media (max-width: 1100px) {
  .nav-links { gap: 14px; }.nav-links a{font-size:.78rem}
  .product-cards { grid-template-columns: repeat(2,1fr); }
  .preview-app { grid-template-columns: 210px minmax(0,1fr); }.preview-report{padding:24px}
}

@media (max-width: 820px) {
  :root { --section-pad: 82px; --nav-height: 68px; }
  .container { width: min(100% - 32px, 680px); }
  .navbar > .container { min-height: 68px; }.logo-img{width:125px;height:42px}
  .hamburger { display: block; }
  .nav-links { position: absolute; top: 100%; right: 16px; left: 16px; display: none; padding: 18px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); box-shadow: var(--shadow); }.nav-links.open{display:grid}.nav-links a{padding:8px;font-size:.9rem}
  .hero { padding: 78px 0 86px; }.hero-grid{grid-template-columns:1fr;gap:38px}.hero-features{grid-template-columns:1fr}.hero-stats{grid-template-columns:repeat(3,1fr)}.stat-card{display:block;padding:17px}.stat-icon{margin-bottom:15px}.stat-number{font-size:1.35rem}
  .hero-product-preview{margin-top:48px}.preview-app{grid-template-columns:1fr}.preview-sidebar{display:none}.preview-report{padding:18px}.preview-workspace-head{display:block}.preview-head-tags{margin-top:14px}.preview-pro-grid{grid-template-columns:1fr}.preview-pro-panel{min-height:230px}
  .product-cards{grid-template-columns:1fr}.product-card{min-height:auto}.product-card h3{min-height:auto}.product-card>.btn-primary{margin-top:10px}
  .highlight-box{padding:24px}.features-table-container,.advantages-table-container{overflow-x:auto}.features-table,.advantages-table{min-width:650px}
  .video-container{grid-template-columns:1fr}.footer-content{grid-template-columns:1fr 1fr}.footer-logo{grid-column:1/-1}
  .modal-content{padding:54px 20px 26px}.pricing-cards-row{grid-template-columns:1fr}.vip-title{font-size:1.4rem}
  .demo-switcher{right:10px;bottom:10px;max-width:calc(100% - 20px);overflow-x:auto}.demo-switcher a{padding:8px 10px}
}

@media (max-width: 560px) {
  .hero h1{font-size:3rem}.hero-stats{grid-template-columns:1fr}.stat-card{display:flex}.stat-icon{margin-bottom:0}
  .btn-container>*{width:100%}.preview-window-bar{padding:0 14px}.preview-status{font-size:.58rem}.preview-report{overflow:hidden}.preview-head-tags{overflow-x:auto}.preview-workflow-strip{grid-template-columns:1fr 1fr;gap:10px}.preview-forest-panel{overflow-x:auto}.preview-forest-columns,.preview-forest-row{min-width:520px}
  .footer-content{grid-template-columns:1fr}.footer-logo{grid-column:auto}
}