:root {
    --ink: #153235;
    --ink-soft: #476064;
    --green: #17383b;
    --green-2: #31585b;
    --paper: #ffffff;
    --mist: #eef3f0;
    --cream: #fff8e9;
    --line: #d8e2de;
    --accent: #d59a35;
    --shadow: 0 18px 50px rgba(21, 50, 53, .09);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    min-width: 320px;
    color: var(--ink);
    background:
        radial-gradient(circle at 10% 15%, rgba(235, 224, 186, .28), transparent 28rem),
        linear-gradient(135deg, #f4f6ef 0%, #edf3f1 48%, #f7f8f5 100%);
    font-family: Arial, "Microsoft JhengHei", sans-serif;
    font-size: 17px;
    line-height: 1.75;
}

a {
    color: inherit;
}

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

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(216, 226, 222, .88);
    background: rgba(255, 255, 255, .93);
    backdrop-filter: blur(15px);
}

.site-header__inner {
    width: min(1440px, calc(100% - 48px));
    min-height: 88px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 34px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex: 0 0 auto;
}

.brand__logo-frame {
    width: 58px;
    height: 58px;
    display: grid;
    place-items: center;
    overflow: hidden;
    border: 1px solid #edf1ef;
    border-radius: 17px;
    background: #fff;
    box-shadow: 0 9px 24px rgba(21, 50, 53, .08);
}

.brand__logo-frame img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.brand__text {
    display: grid;
    line-height: 1.1;
}

.brand__text strong {
    font-size: 21px;
    font-weight: 900;
    letter-spacing: .02em;
}

.brand__text small {
    margin-top: 7px;
    color: #7c9091;
    font-size: 11px;
    font-weight: 900;
    letter-spacing: .16em;
}

.site-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 25px;
}

.site-nav a {
    color: #40595c;
    font-size: 16px;
    font-weight: 800;
    text-decoration: none;
    white-space: nowrap;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--green);
    text-decoration: underline;
    text-underline-offset: 6px;
}

.site-actions,
.hero__actions,
.cta-section__actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.button {
    min-height: 45px;
    padding: 10px 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    border-radius: 14px;
    font-size: 16px;
    font-weight: 900;
    line-height: 1.35;
    text-align: center;
    text-decoration: none;
    transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button:focus-visible {
    outline: 3px solid rgba(49, 88, 91, .22);
    outline-offset: 3px;
}

.button--primary {
    color: #fff;
    background: var(--green);
    box-shadow: 0 10px 24px rgba(23, 56, 59, .19);
}

.button--primary:hover {
    background: #244a4d;
}

.button--outline {
    color: var(--green);
    border-color: #bfcfca;
    background: rgba(255, 255, 255, .82);
}

.button--text {
    padding-inline: 10px;
    color: var(--green);
    background: transparent;
}

.button--large {
    min-height: 54px;
    padding: 13px 23px;
    font-size: 17px;
}

.button--light {
    color: var(--green);
    background: #fff;
    box-shadow: 0 12px 24px rgba(0, 0, 0, .12);
}

.button--dark-outline {
    color: #fff;
    border-color: rgba(255, 255, 255, .56);
    background: transparent;
}

main {
    width: min(1440px, calc(100% - 48px));
    margin: 28px auto 0;
}

.hero {
    min-height: 610px;
    padding: clamp(38px, 6vw, 84px);
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(360px, .65fr);
    align-items: center;
    gap: clamp(42px, 7vw, 100px);
    border: 1px solid var(--line);
    border-radius: 42px;
    background:
        radial-gradient(circle at 88% 12%, rgba(231, 198, 119, .25), transparent 26rem),
        rgba(255, 255, 255, .94);
    box-shadow: var(--shadow);
}

.eyebrow {
    color: #6f8789;
    font-size: 14px;
    font-weight: 900;
    letter-spacing: .16em;
    line-height: 1.4;
}

.hero h1 {
    max-width: 780px;
    margin: 16px 0 22px;
    font-size: clamp(46px, 5.2vw, 78px);
    line-height: 1.16;
    letter-spacing: -.045em;
}

.hero__lead {
    max-width: 720px;
    color: var(--ink-soft);
    font-size: clamp(19px, 1.7vw, 24px);
    line-height: 1.75;
}

.hero__actions {
    margin-top: 32px;
    flex-wrap: wrap;
}

.hero__facts {
    margin-top: 25px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px 24px;
    list-style: none;
    color: #50686a;
    font-size: 15px;
    font-weight: 800;
}

.hero__facts li::before {
    content: "✓";
    margin-right: 8px;
    color: var(--accent);
    font-weight: 900;
}

.hero__notice {
    padding: 30px;
    border-radius: 30px;
    color: #fff;
    background: var(--green);
    box-shadow: 0 24px 45px rgba(23, 56, 59, .23);
}

.hero__notice .eyebrow {
    color: #bcd0cb;
}

.hero__notice > h2 {
    margin: 8px 0 20px;
    font-size: 27px;
    line-height: 1.35;
}

.notice-list {
    display: grid;
}

.notice-list article {
    padding: 20px 0;
    display: grid;
    grid-template-columns: 46px minmax(0, 1fr);
    gap: 14px;
    border-top: 1px solid rgba(255, 255, 255, .15);
}

.notice-list article > span {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 13px;
    color: var(--green);
    background: #fff;
    font-size: 14px;
    font-weight: 900;
}

.notice-list h3 {
    font-size: 19px;
    line-height: 1.45;
}

.notice-list p {
    margin-top: 5px;
    color: #dce8e5;
    font-size: 15px;
    line-height: 1.65;
}

.section {
    margin-top: 28px;
    padding: clamp(34px, 5vw, 68px);
    border: 1px solid var(--line);
    border-radius: 36px;
    background: rgba(255, 255, 255, .94);
    box-shadow: var(--shadow);
    scroll-margin-top: 112px;
}

.section--tint {
    background:
        radial-gradient(circle at 100% 0%, rgba(227, 185, 96, .19), transparent 23rem),
        #fbfcf8;
}

.section-heading {
    margin-bottom: 32px;
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 35px;
}

.section-heading h2,
.cta-section h2 {
    margin-top: 7px;
    font-size: clamp(31px, 3.2vw, 46px);
    line-height: 1.25;
    letter-spacing: -.025em;
}

.section-heading > p {
    max-width: 620px;
    color: var(--ink-soft);
    font-size: 16px;
}

.step-grid,
.limit-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.step-card,
.limit-grid article {
    min-width: 0;
    padding: 27px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: #f9fbfa;
}

.step-card__number {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 15px;
    color: #fff;
    background: var(--green);
    font-size: 15px;
    font-weight: 900;
}

.step-card h3,
.limit-grid h3 {
    margin-top: 20px;
    font-size: 24px;
    line-height: 1.4;
}

.step-card p,
.limit-grid article > p:last-child {
    margin-top: 10px;
    color: var(--ink-soft);
    font-size: 16px;
}

.area-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.area-list span {
    min-width: 105px;
    padding: 11px 18px;
    border: 1px solid #c9d7d2;
    border-radius: 999px;
    color: var(--green);
    background: #fff;
    font-size: 17px;
    font-weight: 900;
    text-align: center;
}

.limit-grid {
    margin-top: 28px;
}

.limit-grid article {
    background: #fff;
}

.limit-grid article strong {
    margin-top: 12px;
    display: block;
    color: var(--green);
    font-size: clamp(23px, 2vw, 30px);
    line-height: 1.3;
}

.faq-list {
    border-top: 1px solid var(--line);
}

.faq-list details {
    border-bottom: 1px solid var(--line);
}

.faq-list summary {
    padding: 23px 54px 23px 4px;
    position: relative;
    cursor: pointer;
    font-size: 20px;
    font-weight: 900;
    line-height: 1.5;
    list-style: none;
}

.faq-list summary::-webkit-details-marker {
    display: none;
}

.faq-list summary::after {
    content: "+";
    width: 35px;
    height: 35px;
    position: absolute;
    top: 21px;
    right: 4px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--green);
    font-size: 22px;
    font-weight: 500;
}

.faq-list details[open] summary::after {
    content: "−";
}

.faq-list details p {
    max-width: 1050px;
    padding: 0 56px 24px 4px;
    color: var(--ink-soft);
    font-size: 17px;
}

.cta-section {
    margin: 28px 0;
    padding: clamp(36px, 5vw, 68px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 38px;
    border-radius: 36px;
    color: #fff;
    background:
        radial-gradient(circle at 85% 0%, rgba(222, 184, 103, .25), transparent 23rem),
        var(--green);
    box-shadow: 0 20px 45px rgba(23, 56, 59, .2);
}

.cta-section .eyebrow {
    color: #bfd2ce;
}

.cta-section p:last-child {
    margin-top: 10px;
    color: #dce8e5;
    font-size: 17px;
}

.site-footer {
    margin-top: 30px;
    padding: 52px max(24px, calc((100vw - 1392px) / 2));
    color: #dce6e4;
    background: #102b2e;
}

.site-footer__inner {
    display: flex;
    justify-content: space-between;
    gap: 50px;
}

.brand--footer {
    color: #fff;
}

.site-footer__inner > div > p {
    margin-top: 14px;
    color: #aebfbc;
    font-size: 15px;
}

.footer-links {
    max-width: 780px;
    display: flex;
    align-content: flex-start;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 12px 24px;
}

.footer-links a {
    color: #dce6e4;
    font-size: 15px;
    font-weight: 800;
    text-decoration: none;
}

.footer-links a:hover {
    color: #fff;
    text-decoration: underline;
}

.site-footer__bottom {
    margin-top: 36px;
    padding-top: 22px;
    display: flex;
    justify-content: space-between;
    gap: 20px;
    border-top: 1px solid rgba(255, 255, 255, .13);
    color: #98adaa;
    font-size: 14px;
}

@media (max-width: 1100px) {
    .site-nav {
        display: none;
    }

    .site-actions {
        margin-left: auto;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 42px;
    }

    .hero__notice {
        max-width: 760px;
    }

    .section-heading,
    .cta-section {
        align-items: flex-start;
        flex-direction: column;
    }

    .section-heading > p {
        max-width: 780px;
    }
}

@media (max-width: 820px) {
    .site-header__inner,
    main {
        width: min(100% - 28px, 1440px);
    }

    .site-header__inner {
        min-height: 78px;
        gap: 14px;
    }

    .brand__logo-frame {
        width: 50px;
        height: 50px;
        border-radius: 15px;
    }

    .brand__text strong {
        font-size: 19px;
    }

    .brand__text small {
        font-size: 9px;
    }

    .site-actions .button--text {
        display: none;
    }

    main {
        margin-top: 14px;
    }

    .hero,
    .section,
    .cta-section {
        border-radius: 28px;
    }

    .hero {
        min-height: 0;
        padding: 42px 26px 28px;
    }

    .hero h1 {
        font-size: clamp(40px, 11vw, 58px);
    }

    .hero__notice {
        padding: 24px;
        border-radius: 24px;
    }

    .step-grid,
    .limit-grid {
        grid-template-columns: 1fr;
    }

    .section {
        padding: 35px 24px;
    }

    .section-heading {
        gap: 16px;
    }

    .cta-section {
        padding: 38px 25px;
    }

    .site-footer {
        padding: 42px 24px 110px;
    }

    .site-footer__inner,
    .site-footer__bottom {
        flex-direction: column;
    }

    .footer-links {
        justify-content: flex-start;
    }
}

@media (max-width: 520px) {
    body {
        font-size: 16px;
    }

    .site-header__inner,
    main {
        width: min(100% - 20px, 1440px);
    }

    .brand {
        gap: 8px;
    }

    .brand__logo-frame {
        width: 45px;
        height: 45px;
        border-radius: 13px;
    }

    .brand__text strong {
        font-size: 17px;
    }

    .brand__text small {
        display: none;
    }

    .site-actions .button {
        min-height: 40px;
        padding: 8px 12px;
        font-size: 14px;
    }

    .hero {
        padding: 35px 20px 20px;
    }

    .hero h1 {
        font-size: clamp(37px, 12vw, 50px);
        line-height: 1.18;
    }

    .hero__lead {
        font-size: 18px;
    }

    .hero__actions,
    .cta-section__actions {
        width: 100%;
        align-items: stretch;
        flex-direction: column;
    }

    .hero__actions .button,
    .cta-section__actions .button {
        width: 100%;
    }

    .hero__notice {
        padding: 22px 19px;
    }

    .notice-list article {
        grid-template-columns: 40px minmax(0, 1fr);
        gap: 11px;
    }

    .notice-list article > span {
        width: 38px;
        height: 38px;
    }

    .section {
        padding: 31px 19px;
    }

    .section-heading h2,
    .cta-section h2 {
        font-size: 30px;
    }

    .step-card,
    .limit-grid article {
        padding: 22px 20px;
    }

    .step-card h3,
    .limit-grid h3 {
        font-size: 22px;
    }

    .area-list {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .area-list span {
        min-width: 0;
        padding-inline: 10px;
        font-size: 16px;
    }

    .faq-list summary {
        padding-right: 46px;
        font-size: 18px;
    }

    .faq-list details p {
        padding-right: 4px;
        font-size: 16px;
    }

    .cta-section {
        padding: 33px 20px;
    }

    .footer-links {
        display: grid;
        gap: 10px;
    }

    .site-footer__bottom {
        font-size: 13px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    .button {
        transition: none;
    }
}