:root {
  --bg: #ffffff;
  --surface: #f7f8fa;
  --surface-warm: #fbfaf8;
  --ink: #101318;
  --muted: #667085;
  --subtle: #98a2b3;
  --line: #e4e7ec;
  --line-strong: #d0d5dd;
  --red: #d91f2b;
  --red-dark: #b71822;
  --red-soft: #fff1f2;
  --green: #0f9f6e;
  --green-soft: #ecfdf3;
  --blue: #1769e0;
  --radius: 12px;
  --shadow: 0 20px 60px rgba(16, 24, 40, 0.08);
  --font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 15px; line-height: 1.6; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
::selection { background: #ffdadd; color: var(--ink); }

.shell { width: min(1320px, calc(100% - 64px)); margin-inline: auto; }
.mono { font-family: var(--mono); letter-spacing: -0.02em; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; left: 16px; top: 12px; z-index: 100; transform: translateY(-160%); padding: 10px 14px; border-radius: 8px; background: var(--ink); color: white; }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); backdrop-filter: saturate(150%) blur(10px); }
.header-inner { height: 78px; display: flex; align-items: center; gap: 42px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border: 1.5px solid var(--red); border-radius: 10px; }
.brand-mark img { display: block; width: 27px; height: 27px; }
.brand-copy { display: flex; flex-direction: column; line-height: 1.25; }
.brand-copy strong { font-size: 18px; font-weight: 750; letter-spacing: -.02em; }
.brand-copy small { margin-top: 4px; color: var(--muted); font-size: 11px; }
.primary-nav { display: flex; align-items: center; gap: 30px; margin-left: 24px; }
.primary-nav a, .header-actions a { color: #344054; font-weight: 600; font-size: 14px; transition: color .18s ease; }
.header-actions a { display: inline-flex; align-items: center; gap: 7px; }
.primary-nav a:hover, .header-actions a:hover { color: var(--red); }
.header-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; }
.order-link { padding: 9px 13px; }
.support-link { padding: 9px 16px; border: 1px solid var(--line-strong); border-radius: 8px; background: white; }

.tma-banner { margin-top: 16px; padding: 11px 14px; border: 1px solid #b9ead4; border-radius: 9px; background: var(--green-soft); color: #08714e; font-size: 13px; }
.hero { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 80px; align-items: start; padding-top: 14px; padding-bottom: 16px; }
.hero-copy { position: sticky; top: 134px; padding: 50px 0 30px; }
.eyebrow, .section-kicker { color: var(--red); font-size: 12px; line-height: 1.2; font-weight: 750; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 24px; padding: 7px 10px; border-radius: 999px; background: var(--red-soft); letter-spacing: .06em; }
.eyebrow img { filter: invert(16%) sepia(93%) saturate(4299%) hue-rotate(346deg) brightness(88%) contrast(88%); }
.hero h1 { margin: 0; font-size: clamp(56px, 5.1vw, 76px); line-height: 1.05; letter-spacing: -.055em; font-weight: 850; }
.hero h1 span { color: var(--red); }
.hero-lede { max-width: 530px; margin: 26px 0 34px; color: var(--muted); font-size: 18px; line-height: 1.85; }
.trust-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); padding-top: 24px; }
.trust-list div { display: grid; grid-template-columns: auto minmax(0, 1fr); column-gap: 9px; min-width: 0; padding-right: 20px; }
.trust-list div + div { padding-left: 20px; border-left: 1px solid var(--line); }
.trust-list strong, .trust-list span { display: block; }
.trust-list strong { font-size: 16px; line-height: 1.4; }
.trust-list div > span:last-child { grid-column: 2; margin-top: 5px; color: var(--muted); font-size: 12px; line-height: 1.55; }
.feature-icon { grid-row: 1 / 3; display: grid !important; place-items: center; width: 34px; height: 34px; margin: 1px 0 0 !important; border-radius: 9px; }
.feature-icon.red { background: var(--red-soft); }
.feature-icon.green { background: var(--green-soft); }
.feature-icon.blue { background: #eef4ff; }
.feature-icon.red img { filter: invert(16%) sepia(93%) saturate(4299%) hue-rotate(346deg) brightness(88%) contrast(88%); }
.feature-icon.green img { filter: invert(45%) sepia(44%) saturate(965%) hue-rotate(112deg) brightness(87%) contrast(94%); }
.feature-icon.blue img { filter: invert(35%) sepia(83%) saturate(3258%) hue-rotate(211deg) brightness(91%) contrast(91%); }

.order-composer { padding: 30px; border: 1px solid var(--line); border-radius: 16px; background: white; box-shadow: var(--shadow); }
.composer-heading { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; margin-bottom: 18px; }
.composer-heading h2 { margin: 6px 0 0; font-size: 23px; line-height: 1.25; letter-spacing: -.025em; }
.composer-heading a { display: inline-flex; align-items: center; gap: 5px; margin-top: 20px; color: var(--blue); font-size: 13px; font-weight: 650; }
.packages-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.package-item { position: relative; min-height: 104px; padding: 15px 14px; border: 1px solid var(--line); border-radius: 10px; background: white; cursor: pointer; transition: border-color .18s ease, background .18s ease, transform .18s ease; }
.package-item:hover { border-color: #e49aa0; transform: translateY(-1px); }
.package-item.selected { border-color: var(--red); background: #fffafa; box-shadow: inset 0 0 0 1px var(--red); }
.package-radio { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.package-radio::before { content: ""; width: 16px; height: 16px; flex: 0 0 auto; border: 1.5px solid var(--line-strong); border-radius: 50%; background: white; }
.package-item.selected .package-radio::before { border: 5px solid var(--red); }
.package-name { overflow: hidden; font-size: 14px; font-weight: 750; white-space: nowrap; text-overflow: ellipsis; }
.package-energy { color: #344054; font-size: 13px; font-weight: 650; }
.package-duration { margin-top: 3px; color: var(--muted); font-size: 11px; }
.package-price { margin-top: 8px; color: var(--ink); font-size: 19px; line-height: 1.2; font-weight: 800; letter-spacing: -.035em; }
.package-price span { color: var(--muted); font-size: 11px; font-weight: 650; letter-spacing: 0; }
.loading-state { grid-column: 1 / -1; display: flex; align-items: center; justify-content: center; gap: 10px; min-height: 104px; border: 1px dashed var(--line-strong); border-radius: 10px; color: var(--muted); font-size: 13px; }
.spin { display: inline-block; width: 15px; height: 15px; border: 2px solid var(--line-strong); border-top-color: var(--red); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }
.pkg-summary-bar { margin: 12px 0 22px; padding: 9px 12px; border-radius: 8px; background: var(--surface); color: #475467; font-size: 12px; }

.form-group { margin-top: 18px; }
.form-label { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 9px; color: #20242c; font-size: 14px; font-weight: 700; }
.form-label span { display: inline-flex; align-items: center; gap: 9px; }
.form-label b { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: var(--ink); color: white; font-size: 11px; }
.form-label small { color: var(--subtle); font-size: 11px; font-weight: 650; }
.input-wrap { position: relative; display: flex; min-width: 0; }
.text-input { width: 100%; height: 48px; min-width: 0; padding: 0 76px 0 14px; border: 1px solid var(--line-strong); border-radius: 8px; outline: none; background: white; color: var(--ink); font-size: 14px; transition: border-color .18s ease, box-shadow .18s ease; }
.text-input::placeholder { color: #98a2b3; }
.text-input:hover { border-color: #a9afb9; }
.text-input:focus { border-color: var(--red); box-shadow: 0 0 0 3px rgba(217,31,43,.11); }
.text-input:disabled { border-color: var(--line); background: #f6f7f8; color: var(--subtle); cursor: not-allowed; }
.input-action { position: absolute; right: 7px; top: 7px; display: inline-flex; align-items: center; justify-content: center; gap: 5px; height: 34px; min-width: 62px; padding: 0 10px; border: 0; border-radius: 6px; background: var(--surface); color: #344054; font-size: 12px; font-weight: 700; cursor: pointer; }
.input-action:hover { background: #eceef2; }
.input-action:disabled { opacity: .45; cursor: not-allowed; }
.input-hint { display: block; margin-top: 7px; color: var(--muted); font-size: 11px; }
.input-with-button { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; }
.btn-secondary { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-width: 104px; height: 48px; padding: 0 14px; border: 1px solid var(--line-strong); border-radius: 8px; background: white; color: #344054; font-size: 13px; font-weight: 700; cursor: pointer; }
.btn-secondary:hover { border-color: var(--ink); }
.btn-secondary:disabled { cursor: not-allowed; opacity: .5; }
.btn-primary { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; min-height: 52px; margin-top: 20px; border: 0; border-radius: 8px; background: var(--red); color: white; font-size: 15px; font-weight: 750; cursor: pointer; box-shadow: 0 10px 24px rgba(217,31,43,.18); transition: background .18s ease, transform .18s ease, box-shadow .18s ease; }
.btn-primary:hover { background: var(--red-dark); box-shadow: 0 12px 28px rgba(183,24,34,.24); transform: translateY(-1px); }
.btn-primary:disabled { cursor: wait; opacity: .65; transform: none; }
.btn-primary img { filter: brightness(0) invert(1); }
.legal-note { margin: 9px 0 0; color: var(--subtle); font-size: 10px; text-align: center; }
.quick-rent-trigger { display: flex; align-items: center; gap: 9px; width: 100%; min-height: 45px; margin-top: 13px; padding: 0 13px; border: 1px solid #efc7ca; border-radius: 8px; background: #fffafa; color: var(--red-dark); font-size: 12px; cursor: pointer; }
.quick-rent-trigger[hidden] { display: none; }
.quick-rent-trigger > img:first-child { filter: invert(16%) sepia(93%) saturate(4299%) hue-rotate(346deg) brightness(88%) contrast(88%); }
.quick-rent-trigger span { display: flex; align-items: center; gap: 8px; text-align: left; }
.quick-rent-trigger b { font-size: 13px; }
.quick-rent-trigger .trigger-arrow { margin-left: auto; opacity: .7; }
.alert-error { margin-top: 14px; padding: 10px 12px; border-left: 3px solid var(--red); border-radius: 6px; background: var(--red-soft); color: #a9141d; font-size: 12px; }

.diagnostic-box { margin-top: 14px; padding: 15px; border: 1px solid #b7e5d3; border-radius: 10px; background: #f5fcf9; }
.diag-header { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.diag-header strong { font-size: 13px; }
.diag-badge { padding: 3px 7px; border-radius: 999px; font-size: 10px; font-weight: 700; }
.diag-badge.active { background: #dff8ec; color: #08714e; }
.diag-badge.inactive { background: var(--red-soft); color: #a9141d; }
.diag-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 12px; }
.diag-grid div { padding: 9px; border: 1px solid #d7efe5; border-radius: 7px; background: white; }
.diag-grid span, .diag-grid strong { display: block; }
.diag-grid span { color: var(--muted); font-size: 10px; }
.diag-grid strong { margin-top: 3px; font-size: 11px; }
.diagnostic-box p { margin: 10px 0 0; color: #344054; font-size: 12px; }
.text-button { margin-top: 9px; padding: 0; border: 0; background: transparent; color: var(--green); font-size: 12px; font-weight: 750; cursor: pointer; }

.order-panel { margin-top: 22px; padding-top: 22px; border-top: 1px solid var(--line); }
.order-status-header { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 16px; }
.status-badge { padding: 5px 9px; border-radius: 999px; background: #fff4e5; color: #a15c00; font-size: 11px; font-weight: 750; }
.status-badge.active, .status-badge.completed { background: var(--green-soft); color: #08714e; }
.status-badge.fulfilling, .status-badge.paid { background: #eef4ff; color: #1849a9; }
.countdown-wrap { color: var(--muted); font-size: 12px; }
.countdown-wrap strong { color: var(--ink); }
.payment-layout { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 18px; }
.qr-container { display: grid; place-items: center; min-width: 160px; min-height: 160px; padding: 10px; border: 1px solid var(--line); border-radius: 8px; }
.qr-container img { display: block; width: 140px; height: 140px; }
.payment-details { min-width: 0; }
.detail-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.detail-row > div { min-width: 0; }
.detail-row .label { display: block; color: var(--muted); font-size: 10px; }
.detail-row strong { display: block; max-width: 310px; margin-top: 2px; overflow: hidden; font-size: 13px; white-space: nowrap; text-overflow: ellipsis; }
.highlight-row strong { color: var(--red); font-size: 18px; }
.mini-copy-btn, .btn-copy-address { flex: 0 0 auto; padding: 7px 10px; border: 1px solid var(--line-strong); border-radius: 6px; background: white; font-size: 11px; font-weight: 700; cursor: pointer; }
.detail-pairs { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; padding-top: 10px; }
.detail-pairs span { min-width: 0; color: var(--muted); font-size: 10px; }
.detail-pairs strong { display: block; overflow: hidden; margin-top: 2px; color: var(--ink); font-size: 11px; white-space: nowrap; text-overflow: ellipsis; }
.success-box { margin-top: 14px; padding: 12px; border: 1px solid #b7e5d3; border-radius: 8px; background: var(--green-soft); color: #086044; }
.success-box p { margin: 3px 0; font-size: 12px; }
.tx-link { color: var(--blue); font-size: 12px; font-weight: 700; }
.payment-notes { margin: 12px 0 0; color: var(--muted); font-size: 11px; }

.copyable { min-width: 0; overflow: hidden; padding: 0; border: 0; background: none; color: #344054; font-size: 12px; text-align: left; white-space: nowrap; text-overflow: ellipsis; cursor: pointer; }

body.modal-open { overflow: hidden; }
.modal-backdrop { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 24px; background: rgba(16, 19, 24, .62); backdrop-filter: blur(6px); }
.modal-backdrop[hidden] { display: none; }
.quick-rent-modal { position: relative; width: min(600px, 100%); max-height: calc(100dvh - 48px); overflow: auto; padding: 30px; border-radius: 18px; background: white; box-shadow: 0 30px 90px rgba(0,0,0,.25); }
.modal-close { position: absolute; top: 18px; right: 18px; display: grid; place-items: center; width: 36px; height: 36px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: white; cursor: pointer; }
.modal-heading { display: grid; grid-template-columns: auto 1fr; gap: 14px; padding-right: 42px; }
.modal-heading-icon { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 12px; background: var(--red-soft); }
.modal-heading-icon img { filter: invert(16%) sepia(93%) saturate(4299%) hue-rotate(346deg) brightness(88%) contrast(88%); }
.modal-heading h2 { margin: 5px 0 4px; font-size: 25px; line-height: 1.25; letter-spacing: -.035em; }
.modal-heading p { margin: 0; color: var(--muted); font-size: 12px; }
.bookmark-guide { margin-top: 22px; padding: 16px; border: 1px solid #f0c5c8; border-radius: 12px; background: #fffafa; }
.bookmark-title { display: flex; gap: 10px; align-items: flex-start; }
.bookmark-title > img { margin-top: 2px; filter: invert(16%) sepia(93%) saturate(4299%) hue-rotate(346deg) brightness(88%) contrast(88%); }
.bookmark-title div { display: flex; flex-direction: column; gap: 3px; }
.bookmark-title strong { font-size: 14px; }
.bookmark-title span { color: #7a3c42; font-size: 11px; line-height: 1.65; }
.modal-address-box { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 7px 10px; align-items: center; margin-top: 13px; padding-top: 13px; border-top: 1px solid #f2d9db; }
.modal-address-box > span { grid-column: 1 / -1; color: var(--muted); font-size: 10px; }
.btn-copy-address { display: inline-flex; align-items: center; gap: 5px; color: var(--red-dark); }
.energy-guide { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
.energy-guide > div { display: flex; gap: 9px; align-items: center; padding: 12px; border: 1px solid var(--line); border-radius: 10px; }
.guide-icon { display: grid; place-items: center; width: 32px; height: 32px; flex: 0 0 auto; border-radius: 8px; }
.guide-icon.green { background: var(--green-soft); }
.guide-icon.red { background: var(--red-soft); }
.guide-icon.green img { filter: invert(45%) sepia(44%) saturate(965%) hue-rotate(112deg) brightness(87%) contrast(94%); }
.guide-icon.red img { filter: invert(16%) sepia(93%) saturate(4299%) hue-rotate(346deg) brightness(88%) contrast(88%); }
.energy-guide p { display: flex; flex-direction: column; margin: 0; }
.energy-guide strong { font-size: 12px; }
.energy-guide p span { color: var(--muted); font-size: 11px; }
.modal-package-list { display: grid; gap: 8px; margin-top: 16px; }
.modal-package { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 18px; align-items: center; padding: 13px 14px; border: 1px solid var(--line); border-radius: 10px; background: white; }
.modal-package strong { font-size: 14px; }
.modal-package .modal-package-price { grid-row: 1 / 3; grid-column: 2; color: var(--red); font-size: 19px; font-weight: 800; }
.modal-package span { color: var(--muted); font-size: 11px; }
.modal-empty { padding: 18px; border: 1px dashed var(--line-strong); border-radius: 10px; color: var(--muted); font-size: 12px; text-align: center; }
.modal-warning { display: flex; gap: 7px; align-items: flex-start; margin: 15px 0 0; color: var(--muted); font-size: 11px; }
.modal-warning img { margin-top: 1px; flex: 0 0 auto; }

.explain { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: end; padding-block: 84px; }
.explain h2, .steps h2, .orders-section h2, .faq-section h2 { margin: 8px 0 14px; font-size: clamp(30px, 3vw, 42px); line-height: 1.2; letter-spacing: -.04em; }
.explain-heading p, .orders-section p, .faq-intro p { max-width: 560px; margin: 0; color: var(--muted); font-size: 15px; }
.comparison { border-top: 1px solid var(--ink); }
.comparison-row { display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 20px; align-items: center; min-height: 58px; padding-inline: 16px; border-bottom: 1px solid var(--line); }
.comparison-row span, .comparison-row strong { font-size: 13px; }
.comparison-head { min-height: 42px; color: var(--muted); }
.comparison-head span { font-size: 11px; font-weight: 650; }
.comparison-row.recommended { background: var(--red-soft); color: var(--red-dark); }

.steps { display: grid; grid-template-columns: .72fr 1.28fr; gap: 90px; padding: 70px 0; border-top: 1px solid var(--line); }
.steps-title h2 { font-size: 34px; }
.steps ol { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; }
.steps li { display: flex; gap: 16px; padding: 12px 22px; }
.steps li:first-child { padding-left: 0; }
.steps li + li { border-left: 1px solid var(--line); }
.steps li > b { color: var(--red); font-size: 11px; }
.steps li strong { font-size: 15px; }
.steps li p { margin: 7px 0 0; color: var(--muted); font-size: 12px; line-height: 1.7; }

.orders-section { display: grid; grid-template-columns: 1fr minmax(420px, .8fr); gap: 80px; align-items: center; padding: 58px; border-radius: 16px; background: #11151b; color: white; }
.orders-section h2 { margin-bottom: 8px; font-size: 34px; }
.orders-section p { color: #aeb6c3; }
.orders-section .section-kicker { color: #ff7d86; }
.orders-section .text-input { border-color: #3b424d; background: #1b2028; color: white; }
.orders-section .input-action { background: white; color: var(--ink); }
.query-result { min-height: 18px; margin-top: 7px; color: #c7ced8; font-size: 11px; }

.faq-section { display: grid; grid-template-columns: .75fr 1.25fr; gap: 110px; padding-block: 92px; }
.faq-intro { position: sticky; top: 116px; align-self: start; }
.faq-accordion { border-top: 1px solid var(--ink); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { position: relative; padding: 21px 44px 21px 0; font-size: 15px; font-weight: 700; cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 4px; top: 17px; color: var(--muted); font-size: 24px; font-weight: 400; }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { max-width: 720px; margin: -4px 44px 20px 0; color: var(--muted); font-size: 13px; line-height: 1.85; }

.site-footer { border-top: 1px solid var(--line); background: var(--surface); }
.footer-inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; padding-block: 36px; }
.footer-inner strong { font-size: 16px; }
.footer-inner p { margin: 5px 0 0; color: var(--muted); font-size: 11px; }
.toast { position: fixed; left: 50%; bottom: 30px; z-index: 50; transform: translate(-50%, 18px); padding: 10px 15px; border-radius: 8px; background: #11151b; color: white; font-size: 12px; opacity: 0; pointer-events: none; transition: opacity .2s ease, transform .2s ease; box-shadow: 0 10px 30px rgba(0,0,0,.2); }
.toast.show { transform: translate(-50%, 0); opacity: 1; }

:focus-visible { outline: 3px solid rgba(23,105,224,.35); outline-offset: 3px; }

@media (max-width: 1120px) {
  .shell { width: min(100% - 40px, 960px); }
  .primary-nav { display: none; }
  .hero { grid-template-columns: 1fr; gap: 42px; }
  .hero-copy { position: static; padding: 24px 0 0; }
  .hero-lede { max-width: 720px; }
  .explain, .steps, .faq-section { gap: 48px; }
}

@media (max-width: 760px) {
  .shell { width: min(100% - 28px, 620px); }
  .site-header { position: static; }
  .header-inner { height: 68px; }
  .brand-mark { width: 36px; height: 36px; border-radius: 8px; font-size: 10px; }
  .brand-copy strong { font-size: 16px; }
  .brand-copy small, .order-link { display: none; }
  .support-link { padding: 8px 11px; font-size: 12px !important; }
  .hero { padding-top: 24px; gap: 30px; }
  .hero-copy { padding-top: 12px; }
  .hero h1 { font-size: clamp(43px, 13vw, 58px); }
  .hero-lede { margin-top: 20px; font-size: 16px; line-height: 1.75; }
  .trust-list { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; }
  .trust-list div { grid-template-columns: 1fr; padding: 0 8px 0 0; }
  .trust-list div + div { padding: 0 6px 0 10px; border-top: 0; border-left: 1px solid var(--line); }
  .feature-icon { grid-row: auto; width: 30px; height: 30px; margin-bottom: 7px !important; }
  .trust-list strong { font-size: 14px; white-space: nowrap; }
  .trust-list div > span:last-child { grid-column: auto; margin-top: 3px; font-size: 10px; line-height: 1.45; }
  .order-composer { padding: 20px 16px; border-radius: 12px; box-shadow: 0 14px 40px rgba(16,24,40,.08); }
  .packages-list { grid-template-columns: 1fr; }
  .package-item { min-height: auto; }
  .input-with-button { grid-template-columns: 1fr; }
  .btn-secondary { width: 100%; }
  .diag-grid { grid-template-columns: 1fr 1fr; }
  .payment-layout { grid-template-columns: 1fr; }
  .qr-container { width: fit-content; margin-inline: auto; }
  .explain, .steps, .orders-section, .faq-section { grid-template-columns: 1fr; }
  .explain { gap: 34px; padding-block: 58px; }
  .comparison-row { grid-template-columns: 1.2fr .9fr; gap: 12px; padding-inline: 10px; }
  .comparison-row > :last-child { display: none; }
  .steps { gap: 28px; padding-block: 50px; }
  .steps ol { grid-template-columns: 1fr; }
  .steps li, .steps li:first-child { padding: 18px 0; }
  .steps li + li { border-left: 0; border-top: 1px solid var(--line); }
  .orders-section { gap: 30px; padding: 30px 20px; border-radius: 12px; }
  .faq-section { gap: 34px; padding-block: 62px; }
  .faq-intro { position: static; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 18px; }
  .modal-backdrop { align-items: end; padding: 12px; }
  .quick-rent-modal { max-height: calc(100dvh - 24px); padding: 24px 18px; border-radius: 16px; }
  .modal-close { top: 14px; right: 14px; }
  .energy-guide { grid-template-columns: 1fr; }
}

@media (max-width: 430px) {
  .header-actions { display: none; }
  .hero h1 { letter-spacing: -.06em; }
  .composer-heading h2 { font-size: 21px; }
  .modal-address-box { grid-template-columns: 1fr; }
  .modal-address-box > span { grid-column: auto; }
  .btn-copy-address { justify-self: start; }
  .detail-pairs { grid-template-columns: 1fr; }
}