*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg:     #090500;
  --bg2:    #130d00;
  --eagle:  #f97316;
  --amber:  #fbbf24;
  --text:   #fff5eb;
  --muted:  #9a7858;
  --border: #2a1e08;
  --card:   #130d00;
  --card2:  #1e1600;
  --radius: 12px;
  --shadow: 0 4px 28px rgba(249,115,22,0.14);
  --trans:  0.24s ease;
}
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', PingFang SC, sans-serif; line-height: 1.65; }
a { color: var(--eagle); text-decoration: none; transition: var(--trans); }
a:hover { color: var(--amber); }
ul, ol { padding-left: 1.4rem; }
li { margin-bottom: 0.5rem; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; gap: 7px; padding: 12px 28px; border-radius: 8px; font-weight: 700; font-size: 15px; transition: var(--trans); cursor: pointer; border: none; }
.btn-primary { background: var(--eagle); color: #fff; }
.btn-primary:hover { background: #ea6600; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(249,115,22,0.4); }
.btn-outline { background: transparent; color: var(--eagle); border: 2px solid var(--eagle); }
.btn-outline:hover { background: rgba(249,115,22,0.09); }
.btn-amber { background: var(--amber); color: #090500; font-weight: 800; }
.btn-amber:hover { background: #f5c400; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(251,191,36,0.4); }
.btn-lg { padding: 16px 40px; font-size: 17px; border-radius: 10px; }
.btn-sm { padding: 9px 18px; font-size: 13px; }

/* ── Nav ── */
nav { position: sticky; top: 0; z-index: 100; background: rgba(9,5,0,0.95); backdrop-filter: blur(14px); border-bottom: 1px solid var(--border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 800; font-size: 17px; }
.logo-icon { font-size: 22px; line-height: 1; }
.logo-num { color: var(--eagle); font-weight: 900; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { color: var(--muted); font-size: 14px; }
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-cta { padding: 8px 20px !important; background: var(--eagle) !important; color: #fff !important; border-radius: 7px; font-weight: 700 !important; font-size: 13px !important; }
.nav-cta:hover { background: #ea6600 !important; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.menu-toggle span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: var(--trans); }

/* ── Hero ── */
.hero { padding: 96px 0 80px; text-align: center; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -60px; right: 5%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(249,115,22,0.1) 0%, transparent 65%); border-radius: 50%; pointer-events: none; }
.hero::after  { content: ''; position: absolute; bottom: -40px; left: 5%; width: 400px; height: 400px; background: radial-gradient(circle, rgba(251,191,36,0.07) 0%, transparent 65%); border-radius: 50%; pointer-events: none; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(249,115,22,0.1); border: 1px solid rgba(249,115,22,0.3); border-radius: 20px; padding: 6px 16px; font-size: 13px; color: var(--eagle); margin-bottom: 24px; }
.hero h1 { font-size: clamp(34px, 5.5vw, 62px); font-weight: 900; line-height: 1.12; margin-bottom: 20px; letter-spacing: -0.5px; }
.hl { color: var(--eagle); }
.hl-num { color: var(--amber); font-weight: 900; }
.hero-sub { font-size: 17px; color: var(--muted); max-width: 580px; margin: 0 auto 36px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats { display: inline-grid; grid-template-columns: repeat(4, 1fr); background: var(--card); border: 1px solid rgba(249,115,22,0.18); border-radius: 16px; overflow: hidden; }
.stat { padding: 20px 32px; text-align: center; }
.stat:not(:last-child) { border-right: 1px solid var(--border); }
.stat-num { font-size: 28px; font-weight: 900; color: var(--eagle); line-height: 1; }
.stat-label { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ── Sections ── */
.section { padding: 80px 0; }
.section-alt { background: var(--bg2); }
.section-title { font-size: 30px; font-weight: 800; text-align: center; margin-bottom: 10px; }
.section-sub { text-align: center; color: var(--muted); margin-bottom: 48px; font-size: 15px; }

/* ── Feature cards ── */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px 24px; transition: var(--trans); }
.feat-card:hover { border-color: rgba(249,115,22,0.45); box-shadow: var(--shadow); transform: translateY(-3px); }
.feat-icon { font-size: 32px; margin-bottom: 14px; }
.feat-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.feat-card p { color: var(--muted); font-size: 14px; line-height: 1.65; }

/* ── Traffic plans ── */
.plan-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.plan-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 28px 22px; text-align: center; position: relative; transition: var(--trans); }
.plan-card:hover { transform: translateY(-3px); }
.plan-card.featured { border-color: var(--eagle); box-shadow: 0 0 0 1px var(--eagle), var(--shadow); }
.plan-badge { display: inline-block; background: var(--eagle); color: #fff; font-size: 11px; font-weight: 800; padding: 3px 10px; border-radius: 20px; margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.05em; }
.plan-name { font-size: 17px; font-weight: 800; margin-bottom: 6px; }
.plan-traffic { font-size: 36px; font-weight: 900; color: var(--eagle); line-height: 1; margin: 12px 0 2px; }
.plan-traffic-unit { font-size: 14px; color: var(--muted); margin-bottom: 4px; }
.plan-price { font-size: 28px; font-weight: 900; color: var(--amber); margin: 10px 0 4px; }
.plan-price sup { font-size: 14px; vertical-align: super; }
.plan-period { font-size: 12px; color: var(--muted); margin-bottom: 20px; }
.plan-features { list-style: none; padding: 0; margin: 0 0 24px; text-align: left; }
.plan-features li { display: flex; align-items: flex-start; gap: 8px; padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 13px; color: var(--muted); }
.plan-features li:last-child { border-bottom: none; }
.plan-features li .ck { color: var(--eagle); font-weight: 900; flex-shrink: 0; }
.plan-card .btn { width: 100%; justify-content: center; }

/* ── Steps ── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step { text-align: center; }
.step-num { width: 54px; height: 54px; background: var(--eagle); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 22px; font-weight: 900; margin: 0 auto 16px; box-shadow: 0 4px 20px rgba(249,115,22,0.38); }
.step h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14px; }

/* ── Platform grid ── */
.platform-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.platform-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 14px; text-align: center; transition: var(--trans); }
.platform-card:hover { border-color: rgba(249,115,22,0.4); transform: translateY(-2px); }
.platform-icon { font-size: 36px; margin-bottom: 12px; }
.platform-card h3 { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.platform-card p { font-size: 12px; color: var(--muted); margin-bottom: 16px; }
.platform-card .btn { width: 100%; justify-content: center; }

/* ── Reviews ── */
.review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.review-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.review-stars { color: var(--amber); font-size: 15px; margin-bottom: 12px; }
.review-text { color: var(--muted); font-size: 14px; line-height: 1.7; margin-bottom: 16px; font-style: italic; }
.review-author { display: flex; align-items: center; gap: 12px; }
.review-avatar { width: 38px; height: 38px; border-radius: 50%; background: rgba(249,115,22,0.16); display: flex; align-items: center; justify-content: center; font-weight: 800; color: var(--eagle); font-size: 14px; }
.review-name { font-size: 14px; font-weight: 700; }
.review-date { font-size: 12px; color: var(--muted); }

/* ── FAQ ── */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 10px; overflow: hidden; }
.faq-q { width: 100%; background: var(--card); border: none; color: var(--text); font-size: 15px; font-weight: 600; padding: 18px 20px; text-align: left; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: var(--trans); }
.faq-q:hover { background: var(--card2); }
.faq-q .arrow { font-style: normal; font-size: 11px; color: var(--eagle); transition: transform 0.24s; }
.faq-q.open .arrow { transform: rotate(180deg); }
.faq-a { display: none; padding: 16px 20px; color: var(--muted); font-size: 14px; line-height: 1.78; background: var(--card); border-top: 1px solid var(--border); }
.faq-a.open { display: block; }

/* ── CTA banner ── */
.cta-banner { background: linear-gradient(135deg, rgba(249,115,22,0.13) 0%, rgba(251,191,36,0.07) 100%); border: 1px solid rgba(249,115,22,0.22); border-radius: 18px; padding: 64px 40px; text-align: center; }
.cta-banner h2 { font-size: 30px; font-weight: 800; margin-bottom: 10px; }
.cta-banner p { color: var(--muted); margin-bottom: 32px; }

/* ── Footer ── */
footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.footer-brand p { color: var(--muted); font-size: 14px; margin-top: 12px; line-height: 1.65; }
.footer-col h4 { font-size: 12px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 14px; }
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 9px; }
.footer-col a { color: var(--muted); font-size: 14px; }
.footer-col a:hover { color: var(--text); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--border); padding-top: 22px; font-size: 13px; color: var(--muted); }
.footer-icp a { color: var(--muted); }

/* ── Inner pages ── */
.page-hero { padding: 56px 0 44px; background: var(--bg2); border-bottom: 1px solid var(--border); }
.page-hero h1 { font-size: 34px; font-weight: 800; margin-bottom: 8px; }
.page-hero p { color: var(--muted); }
.breadcrumb { display: flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--eagle); }

.tip-box { background: rgba(249,115,22,0.07); border-left: 3px solid var(--eagle); border-radius: 0 8px 8px 0; padding: 14px 18px; margin: 20px 0; font-size: 14px; color: var(--muted); }

.tut-content { max-width: 800px; margin: 0 auto; }
.tut-sec { margin-bottom: 52px; }
.tut-sec h2 { font-size: 21px; font-weight: 800; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 2px solid var(--eagle); display: inline-block; }
.tut-sec h3 { font-size: 16px; font-weight: 700; margin: 22px 0 9px; color: var(--eagle); }
.tut-sec p { color: var(--muted); margin-bottom: 12px; font-size: 15px; line-height: 1.78; }
.tut-sec ul, .tut-sec ol { color: var(--muted); font-size: 15px; }
.tut-sec li { margin-bottom: 8px; }

/* ── Download page ── */
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 60px; }
.dl-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 32px 24px; text-align: center; transition: var(--trans); }
.dl-card:hover { border-color: rgba(249,115,22,0.4); box-shadow: var(--shadow); transform: translateY(-2px); }
.dl-icon { font-size: 48px; margin-bottom: 16px; }
.dl-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.dl-card p { color: var(--muted); font-size: 13px; margin-bottom: 22px; }
.dl-card .btn { width: 100%; justify-content: center; margin-bottom: 10px; }
.dl-ver { font-size: 12px; color: var(--muted); margin-top: 8px; }
.dl-mobile { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 60px; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .platform-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .plan-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--border); }
}
@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg); padding: 20px 24px; border-bottom: 1px solid var(--border); gap: 16px; z-index: 99; }
  .nav-links.open { display: flex; }
  .menu-toggle { display: flex; }
  .feat-grid, .steps, .review-grid { grid-template-columns: 1fr; }
  .platform-grid { grid-template-columns: 1fr 1fr; }
  .plan-grid { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
  .dl-grid, .dl-mobile { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .cta-banner { padding: 40px 20px; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 28px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .stat-num { font-size: 22px; }
  .stat { padding: 14px 16px; }
}