:root {
        --paper: #f4efe7;
        --paper-deep: #ebe3d8;
        --ink: #1e2525;
        --muted: #68706e;
        --red: #d83b2f;
        --red-dark: #b92f27;
        --yellow: #f2c94c;
        --blue: #3068d5;
        --line: rgba(30, 37, 37, 0.15);
        --white: #fffdf9;
        --max: 1240px;
        --radius: 6px;
      }

      * {
        box-sizing: border-box;
      }

      html {
        scroll-behavior: smooth;
      }

      body {
        margin: 0;
        color: var(--ink);
        background: var(--paper);
        font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
        line-height: 1.5;
        -webkit-font-smoothing: antialiased;
      }

      a {
        color: inherit;
        text-decoration: none;
      }

      button,
      a {
        -webkit-tap-highlight-color: transparent;
      }

      button {
        font: inherit;
      }

      .shell {
        width: min(calc(100% - 48px), var(--max));
        margin: 0 auto;
      }

      .mono,
      .eyebrow,
      .stage-label,
      .section-kicker,
      .phone-time,
      .phone-status,
      .small-meta {
        font-family: "SFMono-Regular", Menlo, Consolas, monospace;
        letter-spacing: 0.03em;
      }

      .site-header {
        position: relative;
        z-index: 20;
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: min(calc(100% - 48px), var(--max));
        height: 90px;
        margin: 0 auto;
      }

      .brand {
        display: inline-flex;
        align-items: center;
        gap: 12px;
        font-size: 14px;
        font-weight: 700;
        letter-spacing: 0.14em;
      }

      .brand-mark {
        display: grid;
        width: 36px;
        height: 36px;
        place-items: center;
        color: var(--white);
        background: var(--red);
        border-radius: 50%;
        font-size: 18px;
        font-weight: 900;
        letter-spacing: 0;
      }

      .brand-sub {
        margin-left: 5px;
        color: var(--muted);
        font-size: 12px;
        font-weight: 500;
        letter-spacing: 0.06em;
      }

      .nav-links {
        display: flex;
        align-items: center;
        gap: 32px;
        margin-left: auto;
        margin-right: 38px;
        color: #4f5856;
        font-size: 13px;
      }

      .nav-links a {
        position: relative;
        padding: 8px 0;
      }

      .nav-links a::after {
        position: absolute;
        right: 0;
        bottom: 2px;
        left: 0;
        height: 2px;
        content: "";
        background: var(--red);
        transform: scaleX(0);
        transform-origin: right;
        transition: transform 180ms ease;
      }

      .nav-links a:hover::after,
      .nav-links a:focus-visible::after {
        transform: scaleX(1);
        transform-origin: left;
      }

      .header-download,
      .button-primary,
      .button-secondary,
      .download-button {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 9px;
        border: 1px solid transparent;
        border-radius: var(--radius);
        font-size: 13px;
        font-weight: 700;
        transition: transform 180ms ease, background-color 180ms ease,
          border-color 180ms ease, color 180ms ease;
      }

      .header-download {
        min-height: 40px;
        padding: 0 16px;
        color: var(--white);
        background: var(--ink);
      }

      .header-download:hover,
      .button-primary:hover,
      .download-button:hover {
        background: var(--red-dark);
        transform: translateY(-2px);
      }

      .header-download svg,
      .button-primary svg,
      .button-secondary svg,
      .download-button svg {
        width: 16px;
        height: 16px;
        stroke-width: 2;
      }

      .menu-toggle {
        display: none;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        padding: 0;
        color: var(--ink);
        background: transparent;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        cursor: pointer;
      }

      .hero {
        position: relative;
        display: grid;
        grid-template-columns: minmax(0, 0.94fr) minmax(460px, 1.06fr);
        align-items: center;
        min-height: 630px;
        padding: 52px 0 86px;
        overflow: hidden;
      }

      .hero::before {
        position: absolute;
        top: 16px;
        right: -10%;
        width: 46%;
        height: 64%;
        content: "";
        background: var(--yellow);
        clip-path: polygon(23% 0, 100% 11%, 88% 100%, 0 78%);
        opacity: 0.94;
      }

      .hero-copy {
        position: relative;
        z-index: 2;
        max-width: 620px;
        padding-bottom: 22px;
      }

      .eyebrow,
      .section-kicker {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        color: var(--red);
        font-size: 11px;
        font-weight: 500;
        text-transform: uppercase;
      }

      .eyebrow::before {
        width: 28px;
        height: 2px;
        content: "";
        background: var(--red);
      }

      .hero h1 {
        max-width: 610px;
        margin: 24px 0 20px;
        font-size: clamp(48px, 6.1vw, 84px);
        font-weight: 900;
        line-height: 1.06;
        letter-spacing: -0.04em;
      }

      .hero h1 em {
        position: relative;
        color: var(--red);
        font-style: normal;
      }

      .hero h1 em::after {
        position: absolute;
        right: 0;
        bottom: -8px;
        left: 4px;
        height: 5px;
        content: "";
        background: var(--red);
        opacity: 0.8;
      }

      .hero-lede {
        max-width: 450px;
        margin: 0;
        color: var(--muted);
        font-size: 16px;
        line-height: 1.9;
      }

      .hero-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        margin-top: 34px;
      }

      .button-primary,
      .download-button {
        min-height: 50px;
        padding: 0 19px;
        color: var(--white);
        background: var(--red);
      }

      .button-secondary {
        min-height: 50px;
        padding: 0 18px;
        color: var(--ink);
        background: transparent;
        border-color: var(--line);
      }

      .button-secondary:hover {
        color: var(--red);
        border-color: var(--red);
        transform: translateY(-2px);
      }

      .hero-meta {
        display: flex;
        flex-wrap: wrap;
        gap: 20px;
        margin-top: 34px;
        color: var(--muted);
        font-size: 12px;
      }

      .hero-meta span {
        display: inline-flex;
        align-items: center;
        gap: 7px;
      }

      .hero-meta svg {
        width: 15px;
        height: 15px;
        color: var(--blue);
      }

      .hero-stage {
        position: relative;
        z-index: 2;
        display: flex;
        justify-content: center;
        min-height: 570px;
        padding: 60px 0 20px;
      }

      .stage-label {
        position: absolute;
        top: 7px;
        right: 4%;
        color: var(--ink);
        font-size: 10px;
      }

      .stage-label::before {
        display: inline-block;
        width: 26px;
        height: 1px;
        margin: 0 9px 3px 0;
        content: "";
        background: var(--ink);
      }

      .stage-note {
        position: absolute;
        right: -3%;
        bottom: 30px;
        max-width: 148px;
        color: var(--muted);
        font-size: 11px;
        line-height: 1.65;
      }

      .stage-note strong {
        display: block;
        margin-bottom: 4px;
        color: var(--ink);
        font-size: 13px;
      }

      .hero-asset {
        position: absolute;
        top: 74px;
        left: 2%;
        width: 35%;
        height: 48%;
        object-fit: cover;
        mix-blend-mode: multiply;
        opacity: 0.16;
        filter: saturate(0.3);
      }

      .phone {
        position: relative;
        width: 255px;
        height: 522px;
        padding: 9px;
        background: #202727;
        border: 1px solid #3b4443;
        border-radius: 34px;
        box-shadow: 18px 26px 0 rgba(30, 37, 37, 0.12),
          0 25px 42px rgba(30, 37, 37, 0.2);
      }

      .phone::before {
        position: absolute;
        top: 15px;
        left: 50%;
        z-index: 3;
        width: 78px;
        height: 21px;
        content: "";
        background: #202727;
        border-radius: 0 0 15px 15px;
        transform: translateX(-50%);
      }

      .phone-back {
        position: absolute;
        top: 54px;
        left: 18%;
        background: #d9d6ca;
        transform: rotate(-8deg) translateX(-32px);
        opacity: 0.86;
      }

      .phone-back .phone-screen {
        background: var(--blue);
      }

      .phone-back .phone-ui {
        opacity: 0.55;
      }

      .phone-front {
        z-index: 2;
        margin-left: 178px;
        transform: rotate(5deg);
      }

      .phone-screen {
        position: relative;
        width: 100%;
        height: 100%;
        overflow: hidden;
        background: var(--white);
        border-radius: 26px;
      }

      .phone-screen::after {
        position: absolute;
        right: 16px;
        bottom: 70px;
        width: 100px;
        height: 100px;
        content: "";
        background-image: url("app/assets/images/auth_background.png");
        background-size: cover;
        mix-blend-mode: multiply;
        opacity: 0.11;
      }

      .phone-ui {
        position: relative;
        z-index: 1;
        height: 100%;
        padding: 22px 17px 15px;
      }

      .phone-topline,
      .phone-bottomline,
      .phone-nav {
        display: flex;
        align-items: center;
        justify-content: space-between;
      }

      .phone-time {
        font-size: 10px;
        font-weight: 500;
      }

      .phone-status {
        display: flex;
        align-items: center;
        gap: 5px;
        color: var(--muted);
        font-size: 8px;
      }

      .phone-status svg {
        width: 11px;
        height: 11px;
      }

      .phone-greeting {
        margin-top: 30px;
      }

      .phone-greeting small {
        color: var(--muted);
        font-size: 9px;
      }

      .phone-greeting h3 {
        margin: 4px 0 0;
        font-size: 18px;
        font-weight: 700;
      }

      .balance-box {
        position: relative;
        margin-top: 22px;
        padding: 18px 16px 16px;
        color: var(--white);
        background: var(--red);
        border-radius: 4px;
      }

      .balance-box::before {
        position: absolute;
        top: -6px;
        right: 18px;
        width: 16px;
        height: 16px;
        content: "";
        background: var(--yellow);
        transform: rotate(45deg);
      }

      .balance-label {
        font-size: 9px;
        opacity: 0.82;
      }

      .balance-number {
        margin-top: 5px;
        font-family: "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
        font-size: 25px;
        font-weight: 700;
        letter-spacing: 0.01em;
      }

      .balance-change {
        display: flex;
        justify-content: space-between;
        margin-top: 13px;
        padding-top: 11px;
        border-top: 1px solid rgba(255, 255, 255, 0.26);
        font-size: 8px;
      }

      .phone-section-title {
        display: flex;
        align-items: center;
        justify-content: space-between;
        margin-top: 25px;
      }

      .phone-section-title strong {
        font-size: 11px;
      }

      .phone-section-title span {
        color: var(--red);
        font-size: 8px;
      }

      .mini-chart {
        display: flex;
        align-items: end;
        gap: 8px;
        height: 93px;
        margin-top: 12px;
        padding: 15px 12px 13px;
        background: #f2eee7;
        border-radius: 4px;
      }

      .mini-chart span {
        flex: 1;
        background: var(--blue);
        border-radius: 2px 2px 0 0;
        opacity: 0.88;
      }

      .mini-chart span:nth-child(1) {
        height: 38%;
      }

      .mini-chart span:nth-child(2) {
        height: 62%;
      }

      .mini-chart span:nth-child(3) {
        height: 48%;
      }

      .mini-chart span:nth-child(4) {
        height: 76%;
      }

      .mini-chart span:nth-child(5) {
        height: 57%;
      }

      .mini-chart span:nth-child(6) {
        height: 86%;
        background: var(--red);
      }

      .phone-list {
        display: grid;
        gap: 11px;
        margin-top: 21px;
      }

      .phone-list-item {
        display: flex;
        align-items: center;
        gap: 10px;
      }

      .list-icon {
        display: grid;
        width: 27px;
        height: 27px;
        place-items: center;
        color: var(--red);
        background: #f6e3df;
        border-radius: 50%;
      }

      .list-icon svg {
        width: 13px;
        height: 13px;
      }

      .list-copy {
        display: grid;
        gap: 1px;
        font-size: 9px;
      }

      .list-copy small {
        color: var(--muted);
        font-size: 8px;
      }

      .list-value {
        margin-left: auto;
        color: var(--red);
        font-family: "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
        font-size: 10px;
        font-weight: 700;
      }

      .phone-nav {
        position: absolute;
        right: 17px;
        bottom: 14px;
        left: 17px;
        padding-top: 12px;
        border-top: 1px solid #ebe7de;
      }

      .phone-nav-item {
        display: grid;
        justify-items: center;
        gap: 3px;
        color: #98a09c;
        font-size: 7px;
      }

      .phone-nav-item svg {
        width: 14px;
        height: 14px;
      }

      .phone-nav-item.active {
        color: var(--red);
      }

      .signal-band {
        background: var(--ink);
        color: var(--white);
      }

      .signal-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
      }

      .signal-item {
        min-height: 116px;
        padding: 24px 22px;
        border-right: 1px solid rgba(255, 255, 255, 0.16);
      }

      .signal-item:last-child {
        border-right: 0;
      }

      .signal-value {
        display: block;
        color: var(--yellow);
        font-family: "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
        font-size: 28px;
        font-weight: 700;
        line-height: 1.1;
      }

      .signal-label {
        display: block;
        margin-top: 7px;
        color: rgba(255, 253, 249, 0.7);
        font-size: 12px;
      }

      .features {
        padding: 120px 0 130px;
      }

      .section-heading {
        display: grid;
        grid-template-columns: 1.05fr 0.95fr;
        align-items: end;
        gap: 40px;
        margin-bottom: 48px;
      }

      .section-heading h2 {
        max-width: 680px;
        margin: 18px 0 0;
        font-size: clamp(34px, 4.1vw, 58px);
        font-weight: 900;
        line-height: 1.1;
        letter-spacing: -0.035em;
      }

      .section-heading p {
        max-width: 390px;
        margin: 0 0 3px auto;
        color: var(--muted);
        font-size: 14px;
        line-height: 1.85;
      }

      .feature-grid {
        display: grid;
        grid-template-columns: 1.18fr 0.91fr 0.91fr;
        gap: 14px;
      }

      .feature-card {
        position: relative;
        min-height: 310px;
        padding: 28px;
        overflow: hidden;
        border: 1px solid var(--line);
        border-radius: var(--radius);
      }

      .feature-card--dark {
        color: var(--white);
        background: var(--ink);
        border-color: var(--ink);
      }

      .feature-card--red {
        color: var(--white);
        background: var(--red);
        border-color: var(--red);
      }

      .feature-index {
        display: block;
        color: var(--blue);
        font-family: "SFMono-Regular", Menlo, Consolas, monospace;
        font-size: 11px;
      }

      .feature-card--dark .feature-index,
      .feature-card--red .feature-index {
        color: var(--yellow);
      }

      .feature-card h3 {
        max-width: 250px;
        margin: 52px 0 11px;
        font-size: 25px;
        font-weight: 700;
        line-height: 1.25;
      }

      .feature-card p {
        max-width: 260px;
        margin: 0;
        color: var(--muted);
        font-size: 13px;
        line-height: 1.75;
      }

      .feature-card--dark p,
      .feature-card--red p {
        color: rgba(255, 253, 249, 0.72);
      }

      .feature-symbol {
        position: absolute;
        right: 25px;
        bottom: 21px;
        color: var(--red);
        opacity: 0.92;
      }

      .feature-symbol svg {
        width: 86px;
        height: 86px;
        stroke-width: 1.1;
      }

      .feature-card--dark .feature-symbol {
        color: var(--yellow);
      }

      .feature-card--red .feature-symbol {
        color: var(--white);
      }

      .feature-card--red::before,
      .feature-card--dark::before {
        position: absolute;
        top: 40px;
        right: -38px;
        width: 132px;
        height: 132px;
        content: "";
        border: 1px solid currentColor;
        border-radius: 50%;
        opacity: 0.2;
      }

      .feature-card--red::after,
      .feature-card--dark::after {
        position: absolute;
        top: 69px;
        right: -11px;
        width: 75px;
        height: 75px;
        content: "";
        border: 1px solid currentColor;
        border-radius: 50%;
        opacity: 0.2;
      }

      .manifesto {
        padding: 118px 0 130px;
        color: var(--white);
        background: var(--red);
      }

      .manifesto-layout {
        display: grid;
        grid-template-columns: 0.77fr 1.23fr;
        gap: 70px;
        align-items: start;
      }

      .manifesto .section-kicker {
        color: var(--yellow);
      }

      .manifesto .section-kicker::before {
        background: var(--yellow);
      }

      .manifesto h2 {
        margin: 21px 0 0;
        font-size: clamp(36px, 4.5vw, 65px);
        font-weight: 900;
        line-height: 1.08;
        letter-spacing: -0.035em;
      }

      .manifesto-intro {
        max-width: 510px;
        margin: 48px 0 0 auto;
        color: rgba(255, 253, 249, 0.8);
        font-size: 15px;
        line-height: 1.9;
      }

      .manifesto-points {
        display: grid;
        gap: 0;
        margin-top: 42px;
        border-top: 1px solid rgba(255, 253, 249, 0.3);
      }

      .manifesto-point {
        display: grid;
        grid-template-columns: 56px 1fr;
        gap: 22px;
        padding: 20px 0 19px;
        border-bottom: 1px solid rgba(255, 253, 249, 0.3);
      }

      .manifesto-point .mono {
        color: var(--yellow);
        font-size: 11px;
      }

      .manifesto-point strong {
        display: block;
        margin-bottom: 5px;
        font-size: 18px;
      }

      .manifesto-point p {
        max-width: 440px;
        margin: 0;
        color: rgba(255, 253, 249, 0.72);
        font-size: 13px;
      }

      .download {
        padding: 126px 0 112px;
      }

      .download-layout {
        display: grid;
        grid-template-columns: 1fr 0.76fr;
        gap: 70px;
        align-items: center;
      }

      .download h2 {
        max-width: 590px;
        margin: 18px 0 17px;
        font-size: clamp(38px, 4.8vw, 70px);
        font-weight: 900;
        line-height: 1.05;
        letter-spacing: -0.04em;
      }

      .download-copy > p {
        max-width: 450px;
        margin: 0;
        color: var(--muted);
        font-size: 15px;
        line-height: 1.85;
      }

      .download-actions {
        display: flex;
        flex-wrap: wrap;
        gap: 11px;
        margin-top: 31px;
      }

      .download-note {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-top: 19px;
        color: var(--muted);
        font-size: 11px;
      }

      .download-note svg {
        width: 14px;
        height: 14px;
        color: var(--blue);
      }

      .qr-panel {
        display: grid;
        grid-template-columns: 150px 1fr;
        gap: 23px;
        align-items: center;
        padding: 22px;
        background: var(--white);
        border: 1px solid var(--line);
        border-radius: var(--radius);
      }

      .qr-wrap {
        display: grid;
        width: 150px;
        height: 150px;
        padding: 10px;
        place-items: center;
        background: var(--white);
        border: 1px solid var(--line);
      }

      .qr-wrap img {
        display: block;
        width: 128px;
        height: 128px;
        image-rendering: pixelated;
      }

      .qr-fallback {
        display: none;
        width: 128px;
        height: 128px;
        padding: 12px;
        color: var(--ink);
        background: var(--yellow);
        font-size: 11px;
        font-weight: 700;
        line-height: 1.45;
        text-align: center;
      }

      .qr-copy h3 {
        margin: 0 0 7px;
        font-size: 18px;
      }

      .qr-copy p {
        margin: 0;
        color: var(--muted);
        font-size: 12px;
        line-height: 1.7;
      }

      .qr-copy .mono {
        display: block;
        margin-top: 16px;
        color: var(--red);
        font-size: 10px;
      }

      .site-footer {
        padding: 28px 0 34px;
        color: rgba(255, 253, 249, 0.68);
        background: var(--ink);
        font-size: 11px;
      }

      .footer-row {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 20px;
      }

      .footer-brand {
        display: inline-flex;
        align-items: center;
        gap: 9px;
        color: var(--white);
        font-weight: 700;
        letter-spacing: 0.08em;
      }

      .footer-brand .brand-mark {
        width: 24px;
        height: 24px;
        font-size: 12px;
      }

      .footer-links {
        display: flex;
        gap: 24px;
      }

      .footer-links a:hover {
        color: var(--yellow);
      }

      body.modal-open {
        overflow: hidden;
      }

      .download-modal {
        position: fixed;
        inset: 0;
        z-index: 100;
        display: grid;
        place-items: center;
        padding: 24px;
      }

      .download-modal[hidden] {
        display: none;
      }

      .modal-backdrop {
        position: absolute;
        inset: 0;
        background: rgba(30, 37, 37, 0.72);
        backdrop-filter: blur(5px);
      }

      .modal-card {
        position: relative;
        z-index: 1;
        width: min(100%, 560px);
        padding: 36px;
        background: var(--paper);
        border: 1px solid rgba(255, 253, 249, 0.45);
        border-radius: var(--radius);
        box-shadow: 0 26px 70px rgba(12, 17, 17, 0.3);
        animation: modal-in 180ms ease-out both;
      }

      @keyframes modal-in {
        from {
          opacity: 0;
          transform: translateY(10px) scale(0.98);
        }
        to {
          opacity: 1;
          transform: translateY(0) scale(1);
        }
      }

      .modal-close {
        position: absolute;
        top: 15px;
        right: 15px;
        display: grid;
        width: 38px;
        height: 38px;
        padding: 0;
        place-items: center;
        color: var(--ink);
        background: transparent;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        cursor: pointer;
        transition: color 180ms ease, border-color 180ms ease, transform 180ms ease;
      }

      .modal-close:hover {
        color: var(--red);
        border-color: var(--red);
        transform: rotate(5deg);
      }

      .modal-close svg {
        width: 17px;
        height: 17px;
      }

      .modal-card h2 {
        max-width: 390px;
        margin: 18px 0 10px;
        font-size: clamp(30px, 4vw, 44px);
        font-weight: 900;
        line-height: 1.1;
        letter-spacing: -0.035em;
      }

      .modal-intro {
        max-width: 440px;
        margin: 0;
        color: var(--muted);
        font-size: 13px;
        line-height: 1.8;
      }

      .download-options {
        display: grid;
        gap: 10px;
        margin-top: 26px;
      }

      .download-option {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 18px;
        min-height: 92px;
        padding: 17px 18px;
        color: var(--ink);
        background: var(--white);
        border: 1px solid var(--line);
        border-radius: var(--radius);
        transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
      }

      .download-option:hover {
        color: var(--white);
        background: var(--red);
        border-color: var(--red);
        transform: translateX(3px);
      }

      .download-option-copy {
        display: grid;
        gap: 2px;
      }

      .download-option-label {
        color: var(--red);
        font-family: "SFMono-Regular", Menlo, Consolas, monospace;
        font-size: 10px;
        font-weight: 500;
        letter-spacing: 0.04em;
        text-transform: uppercase;
      }

      .download-option:hover .download-option-label {
        color: var(--yellow);
      }

      .download-option strong {
        font-size: 17px;
      }

      .download-option small {
        color: var(--muted);
        font-size: 11px;
      }

      .download-option:hover small {
        color: rgba(255, 253, 249, 0.78);
      }

      .download-option > svg {
        width: 20px;
        height: 20px;
        color: var(--red);
      }

      .download-option:hover > svg {
        color: var(--yellow);
      }

      .modal-footnote {
        display: flex;
        align-items: center;
        gap: 7px;
        margin-top: 18px;
        color: var(--muted);
        font-size: 11px;
      }

      .modal-footnote svg {
        width: 14px;
        height: 14px;
        color: var(--blue);
      }

      .toast {
        position: fixed;
        right: 22px;
        bottom: 22px;
        z-index: 50;
        max-width: min(360px, calc(100% - 44px));
        padding: 13px 16px;
        color: var(--white);
        background: var(--ink);
        border-left: 4px solid var(--yellow);
        border-radius: 3px;
        box-shadow: 0 14px 28px rgba(30, 37, 37, 0.22);
        font-size: 12px;
        opacity: 0;
        pointer-events: none;
        transform: translateY(15px);
        transition: opacity 180ms ease, transform 180ms ease;
      }

      .toast.is-visible {
        opacity: 1;
        transform: translateY(0);
      }

      :focus-visible {
        outline: 3px solid var(--yellow);
        outline-offset: 3px;
      }

      @media (max-width: 980px) {
        .hero {
          grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
          min-height: 590px;
        }

        .hero h1 {
          font-size: clamp(46px, 7vw, 68px);
        }

        .phone-front {
          margin-left: 138px;
        }

        .phone-back {
          left: 8%;
        }

        .feature-grid {
          grid-template-columns: repeat(2, 1fr);
        }

        .feature-card:first-child {
          grid-column: span 2;
        }

        .manifesto-layout,
        .download-layout {
          gap: 42px;
        }
      }

      @media (max-width: 720px) {
        .shell,
        .site-header {
          width: min(calc(100% - 34px), var(--max));
        }

        .site-header {
          height: 76px;
        }

        .nav-links,
        .site-header > .header-download {
          display: none;
        }

        .menu-toggle {
          display: inline-flex;
        }

        .site-header.nav-open .nav-links {
          position: absolute;
          top: 70px;
          right: 0;
          left: 0;
          display: grid;
          gap: 2px;
          margin: 0;
          padding: 12px 17px;
          background: var(--white);
          border: 1px solid var(--line);
          box-shadow: 0 14px 25px rgba(30, 37, 37, 0.1);
        }

        .site-header.nav-open .nav-links a {
          padding: 12px 0;
          border-bottom: 1px solid var(--line);
        }

        .site-header.nav-open .nav-links a:last-child {
          border-bottom: 0;
        }

        .hero {
          display: block;
          min-height: auto;
          padding: 40px 0 65px;
        }

        .hero::before {
          top: 53%;
          right: -31%;
          width: 100%;
          height: 45%;
        }

        .hero h1 {
          margin-top: 19px;
          font-size: clamp(44px, 13vw, 70px);
        }

        .hero-lede {
          font-size: 14px;
        }

        .hero-actions {
          margin-top: 26px;
        }

        .hero-meta {
          gap: 11px 18px;
          margin-top: 25px;
        }

        .hero-stage {
          min-height: 465px;
          margin-top: 31px;
          padding-top: 45px;
        }

        .stage-label {
          top: 0;
          right: 0;
          font-size: 9px;
        }

        .phone {
          width: 205px;
          height: 420px;
          padding: 7px;
          border-radius: 27px;
        }

        .phone-screen {
          border-radius: 21px;
        }

        .phone-front {
          margin-left: 104px;
        }

        .phone-back {
          left: 5%;
        }

        .phone-ui {
          padding: 17px 13px 11px;
        }

        .phone-greeting {
          margin-top: 24px;
        }

        .phone-greeting h3 {
          font-size: 15px;
        }

        .balance-box {
          margin-top: 16px;
          padding: 14px 12px 13px;
        }

        .balance-number {
          font-size: 20px;
        }

        .mini-chart {
          height: 71px;
          gap: 6px;
          margin-top: 9px;
          padding: 11px 8px 9px;
        }

        .phone-section-title {
          margin-top: 18px;
        }

        .phone-list {
          gap: 8px;
          margin-top: 14px;
        }

        .list-icon {
          width: 23px;
          height: 23px;
        }

        .list-copy {
          font-size: 8px;
        }

        .list-copy small,
        .list-value {
          font-size: 7px;
        }

        .phone-nav {
          right: 13px;
          bottom: 10px;
          left: 13px;
          padding-top: 9px;
        }

        .stage-note {
          right: -3px;
          bottom: 3px;
          max-width: 126px;
          font-size: 10px;
        }

        .signal-grid {
          grid-template-columns: repeat(2, 1fr);
        }

        .signal-item {
          min-height: 99px;
          padding: 19px 17px;
          border-bottom: 1px solid rgba(255, 255, 255, 0.16);
        }

        .signal-item:nth-child(2) {
          border-right: 0;
        }

        .signal-item:nth-child(3),
        .signal-item:nth-child(4) {
          border-bottom: 0;
        }

        .signal-value {
          font-size: 24px;
        }

        .signal-label {
          font-size: 11px;
        }

        .features,
        .manifesto,
        .download {
          padding: 78px 0 84px;
        }

        .section-heading {
          display: block;
          margin-bottom: 31px;
        }

        .section-heading h2 {
          margin-top: 15px;
          font-size: clamp(36px, 10vw, 52px);
        }

        .section-heading p {
          margin: 18px 0 0;
          font-size: 13px;
        }

        .feature-grid {
          display: block;
        }

        .feature-card,
        .feature-card:first-child {
          min-height: 260px;
          margin-top: 12px;
        }

        .feature-card h3 {
          margin-top: 41px;
          font-size: 23px;
        }

        .manifesto-layout,
        .download-layout {
          display: block;
        }

        .manifesto-intro {
          margin: 31px 0 0;
          font-size: 13px;
        }

        .manifesto h2 {
          font-size: clamp(39px, 11vw, 55px);
        }

        .manifesto-points {
          margin-top: 31px;
        }

        .manifesto-point {
          grid-template-columns: 41px 1fr;
          gap: 12px;
          padding: 17px 0;
        }

        .manifesto-point strong {
          font-size: 16px;
        }

        .manifesto-point p {
          font-size: 12px;
          line-height: 1.7;
        }

        .download h2 {
          font-size: clamp(42px, 12vw, 62px);
        }

        .download-copy > p {
          font-size: 13px;
        }

        .qr-panel {
          grid-template-columns: 126px 1fr;
          gap: 16px;
          margin-top: 44px;
          padding: 15px;
        }

        .qr-wrap {
          width: 126px;
          height: 126px;
          padding: 8px;
        }

        .qr-wrap img,
        .qr-fallback {
          width: 108px;
          height: 108px;
        }

        .qr-copy h3 {
          font-size: 16px;
        }

        .qr-copy p {
          font-size: 11px;
        }

        .download-modal {
          padding: 17px;
        }

        .modal-card {
          padding: 29px 20px 21px;
        }

        .modal-card h2 {
          max-width: 285px;
          margin-top: 15px;
          font-size: 31px;
        }

        .modal-intro {
          font-size: 12px;
        }

        .download-options {
          margin-top: 21px;
        }

        .download-option {
          min-height: 82px;
          padding: 14px;
        }

        .download-option strong {
          font-size: 15px;
        }

        .footer-row {
          align-items: flex-start;
          flex-direction: column;
        }

        .footer-links {
          flex-wrap: wrap;
          gap: 13px 20px;
        }
      }

      @media (prefers-reduced-motion: reduce) {
        *,
        *::before,
        *::after {
          scroll-behavior: auto !important;
          transition-duration: 0.01ms !important;
          animation-duration: 0.01ms !important;
        }
      }