:root {
    --c-black: #0e0f0c;
    --c-green: #9fe870;
    --c-green-dark: #163300;
    --c-mint: #e2f6d5;
    --c-pastel: #cdffad;
    --c-white: #ffffff;
    --c-gray: #868685;
    --c-warm-dark: #454745;
    --c-surface: #e8ebe6;
    --c-ring: rgba(14,15,12,0.12);
    --c-nav-hover: rgba(211,242,192,0.4);
    --radius-sm: 16px;
    --radius-md: 30px;
    --radius-lg: 40px;
    --radius-pill: 9999px;
    --font-display: 'Inter', Helvetica, Arial, sans-serif;
    --font-body: 'Inter', Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: 18px;
    font-weight: 400;
    line-height: 1.44;
    letter-spacing: 0.18px;
    color: var(--c-black);
    background: var(--c-white);
    font-feature-settings: "calt";
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.sp-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--c-white);
    border-bottom: 1px solid var(--c-ring);
}

.sp-header__inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    gap: 32px;
}

.sp-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    font-feature-settings: "calt";
}

.sp-logo__mark {
    width: 36px;
    height: 36px;
    background: var(--c-green);
    color: var(--c-green-dark);
    border-radius: var(--radius-pill);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 14px;
    letter-spacing: -0.5px;
}

.sp-logo__name {
    font-weight: 900;
    font-size: 18px;
    color: var(--c-black);
    letter-spacing: -0.5px;
}

.sp-nav { margin-left: auto; }

.sp-nav ul {
    display: flex;
    align-items: center;
    gap: 4px;
}

.sp-nav a {
    display: block;
    padding: 8px 14px;
    border-radius: var(--radius-pill);
    font-size: 15px;
    font-weight: 600;
    color: var(--c-black);
    transition: background 0.18s;
    font-feature-settings: "calt";
}

.sp-nav a:hover,
.sp-nav a.active {
    background: var(--c-nav-hover);
}

.sp-nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: auto;
}

.sp-nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--c-black);
    border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
}

.sp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    border-radius: var(--radius-pill);
    font-size: 16px;
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.108px;
    border: none;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    font-feature-settings: "calt";
    text-decoration: none;
}

.sp-btn--primary {
    background: var(--c-green);
    color: var(--c-green-dark);
}

.sp-btn--secondary {
    background: rgba(22,51,0,0.08);
    color: var(--c-black);
}

.sp-btn:hover { transform: scale(1.05); }
.sp-btn:active { transform: scale(0.95); }
.sp-btn:focus-visible { outline: 3px solid var(--c-green); outline-offset: 3px; }

.sp-hero {
    padding: 80px 24px 64px;
    max-width: 1200px;
    margin: 0 auto;
}

.sp-hero__label {
    display: inline-block;
    background: var(--c-mint);
    color: var(--c-green-dark);
    padding: 4px 14px;
    border-radius: var(--radius-pill);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.sp-hero__title {
    font-size: clamp(48px, 7vw, 96px);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -2px;
    color: var(--c-black);
    max-width: 820px;
    margin-bottom: 24px;
    font-feature-settings: "calt";
}

.sp-hero__title em {
    font-style: normal;
    color: var(--c-green-dark);
    background: var(--c-green);
    padding: 0 8px;
    border-radius: 8px;
}

.sp-hero__desc {
    font-size: 20px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--c-warm-dark);
    max-width: 560px;
    margin-bottom: 36px;
}

.sp-hero__actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.sp-hero__img {
    margin-top: 56px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--c-ring) 0px 0px 0px 1px;
    max-height: 500px;
    width: 100%;
    object-fit: cover;
}

.sp-section {
    padding: 64px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.sp-section__label {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--c-gray);
    margin-bottom: 12px;
}

.sp-section__title {
    font-size: clamp(36px, 4vw, 56px);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
    font-feature-settings: "calt";
}

.sp-section__sub {
    font-size: 18px;
    color: var(--c-warm-dark);
    max-width: 540px;
    margin-bottom: 48px;
}

.sp-grid {
    display: grid;
    gap: 24px;
}

.sp-grid--3 { grid-template-columns: repeat(3, 1fr); }
.sp-grid--2 { grid-template-columns: repeat(2, 1fr); }

.sp-card {
    border-radius: var(--radius-md);
    border: 1px solid var(--c-ring);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.18s, transform 0.18s;
    background: var(--c-white);
}

.sp-card:hover {
    box-shadow: 0 8px 32px rgba(14,15,12,0.10);
    transform: translateY(-2px);
}

.sp-card__img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.sp-card__body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sp-card__tag {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--c-green-dark);
    background: var(--c-mint);
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    width: fit-content;
}

.sp-card__title {
    font-size: 22px;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.396px;
    color: var(--c-black);
    font-feature-settings: "calt";
}

.sp-card__desc {
    font-size: 15px;
    color: var(--c-warm-dark);
    line-height: 1.5;
    flex: 1;
}

.sp-card__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--c-green-dark);
    margin-top: 8px;
}

.sp-card__link::after {
    content: '→';
}

.sp-card__link:hover { text-decoration: underline; }

.sp-tips {
    background: var(--c-black);
    color: var(--c-white);
    border-radius: var(--radius-lg);
    padding: 56px;
    margin: 64px 24px;
    max-width: 1152px;
    margin-left: auto;
    margin-right: auto;
}

.sp-tips__title {
    font-size: clamp(32px, 4vw, 56px);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -1.5px;
    margin-bottom: 40px;
    font-feature-settings: "calt";
}

.sp-tips__title span {
    color: var(--c-green);
}

.sp-tips__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.sp-tip {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(159,232,112,0.2);
    border-radius: var(--radius-sm);
    padding: 24px;
}

.sp-tip__num {
    font-size: 42px;
    font-weight: 900;
    color: var(--c-green);
    line-height: 1;
    margin-bottom: 8px;
    font-feature-settings: "calt";
}

.sp-tip__title {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 6px;
}

.sp-tip__desc {
    font-size: 14px;
    color: rgba(255,255,255,0.65);
    line-height: 1.5;
}

.sp-contact {
    padding: 64px 24px;
    max-width: 720px;
    margin: 0 auto;
}

.sp-contact__title {
    font-size: clamp(32px, 4vw, 52px);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -1.5px;
    margin-bottom: 12px;
    font-feature-settings: "calt";
}

.sp-contact__sub {
    font-size: 17px;
    color: var(--c-warm-dark);
    margin-bottom: 36px;
}

.sp-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sp-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

.sp-form__field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.sp-form__field label {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.sp-form__field input,
.sp-form__field textarea {
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid rgba(14,15,12,0.18);
    font-family: var(--font-body);
    font-size: 16px;
    color: var(--c-black);
    background: var(--c-white);
    transition: border-color 0.15s, box-shadow 0.15s;
    font-feature-settings: "calt";
}

.sp-form__field input:focus,
.sp-form__field textarea:focus {
    outline: none;
    border-color: var(--c-green-dark);
    box-shadow: rgb(134,134,133) 0px 0px 0px 1px inset;
}

.sp-form__field textarea { resize: vertical; min-height: 100px; }

.sp-footer {
    background: var(--c-black);
    color: var(--c-white);
    padding: 56px 24px 32px;
    margin-top: 64px;
}

.sp-footer__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sp-footer__brand .sp-logo__mark {
    background: var(--c-green);
    color: var(--c-green-dark);
}

.sp-footer__brand .sp-logo__name {
    color: var(--c-white);
}

.sp-footer__brand p {
    margin-top: 16px;
    font-size: 14px;
    color: rgba(255,255,255,0.55);
    line-height: 1.6;
    max-width: 280px;
}

.sp-footer__nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.sp-footer__col strong {
    display: block;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--c-green);
    margin-bottom: 16px;
}

.sp-footer__col ul { display: flex; flex-direction: column; gap: 10px; }

.sp-footer__col a,
.sp-footer__col li {
    font-size: 14px;
    color: rgba(255,255,255,0.65);
    transition: color 0.15s;
}

.sp-footer__col a:hover { color: var(--c-white); }

.sp-footer__bottom {
    max-width: 1200px;
    margin: 24px auto 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,0.4);
}

.sp-cookie {
    display: none;
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 48px);
    max-width: 680px;
    background: var(--c-black);
    color: var(--c-white);
    padding: 20px 24px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(159,232,112,0.25);
    box-shadow: 0 16px 48px rgba(14,15,12,0.3);
    z-index: 999;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.sp-cookie.sp-cookie--visible { display: flex; }

.sp-cookie p { font-size: 14px; color: rgba(255,255,255,0.8); flex: 1; min-width: 200px; }
.sp-cookie p a { color: var(--c-green); text-decoration: underline; }

.sp-cookie__btns { display: flex; gap: 10px; }

.sp-breadcrumb {
    padding: 16px 24px;
    max-width: 1200px;
    margin: 0 auto;
    font-size: 13px;
    color: var(--c-gray);
}

.sp-breadcrumb a { color: var(--c-green-dark); }
.sp-breadcrumb a:hover { text-decoration: underline; }
.sp-breadcrumb span { margin: 0 6px; }

.sp-article {
    padding: 0 24px 64px;
    max-width: 800px;
    margin: 0 auto;
}

.sp-article__header { margin-bottom: 40px; }

.sp-article__tag {
    display: inline-block;
    background: var(--c-mint);
    color: var(--c-green-dark);
    padding: 4px 14px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.sp-article__title {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -2px;
    margin-bottom: 20px;
    font-feature-settings: "calt";
}

.sp-article__meta {
    font-size: 14px;
    color: var(--c-gray);
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.sp-article__img {
    width: 100%;
    border-radius: var(--radius-md);
    margin: 32px 0;
    aspect-ratio: 16/9;
    object-fit: cover;
    box-shadow: var(--c-ring) 0px 0px 0px 1px;
}

.sp-article__body h2 {
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -1px;
    margin: 40px 0 14px;
    font-feature-settings: "calt";
}

.sp-article__body h3 {
    font-size: 22px;
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.396px;
    margin: 28px 0 10px;
}

.sp-article__body p {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 20px;
    color: var(--c-black);
}

.sp-article__body ul,
.sp-article__body ol {
    padding-left: 24px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sp-article__body ul { list-style: disc; }
.sp-article__body ol { list-style: decimal; }

.sp-article__body li { font-size: 17px; line-height: 1.6; }

.sp-article__body a {
    color: var(--c-green-dark);
    text-decoration: underline;
}

.sp-article__body blockquote {
    border-left: 4px solid var(--c-green);
    padding: 12px 20px;
    margin: 24px 0;
    background: var(--c-mint);
    border-radius: 0 12px 12px 0;
    font-size: 17px;
    font-style: italic;
    color: var(--c-warm-dark);
}

.sp-related { padding: 48px 24px; background: var(--c-surface); margin-top: 48px; }
.sp-related__inner { max-width: 1200px; margin: 0 auto; }
.sp-related__title { font-size: 28px; font-weight: 900; letter-spacing: -0.5px; margin-bottom: 28px; font-feature-settings: "calt"; }

.sp-page {
    padding: 48px 24px 64px;
    max-width: 800px;
    margin: 0 auto;
}

.sp-page h1 {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -2px;
    margin-bottom: 24px;
    font-feature-settings: "calt";
}

.sp-page h2 {
    font-size: 26px;
    font-weight: 600;
    letter-spacing: -0.39px;
    margin: 32px 0 12px;
}

.sp-page p, .sp-page li { font-size: 17px; line-height: 1.7; margin-bottom: 14px; }
.sp-page ul { list-style: disc; padding-left: 24px; }
.sp-page a { color: var(--c-green-dark); text-decoration: underline; }

.sp-disclaimer {
    background: var(--c-surface);
    border-left: 4px solid var(--c-green);
    padding: 16px 20px;
    border-radius: 0 12px 12px 0;
    font-size: 14px;
    color: var(--c-warm-dark);
    margin: 24px 0;
}

@media (max-width: 992px) {
    .sp-grid--3 { grid-template-columns: repeat(2, 1fr); }
    .sp-tips__list { grid-template-columns: 1fr; }
    .sp-footer__inner { grid-template-columns: 1fr; }
    .sp-footer__nav { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sp-hero__title { letter-spacing: -1px; }
    .sp-tips { padding: 36px 24px; }
    .sp-grid--2 { grid-template-columns: 1fr; }
}

@media (max-width: 576px) {
    .sp-nav { display: none; }
    .sp-nav.sp-nav--open { display: block; position: fixed; top: 64px; left: 0; width: 100%; background: var(--c-white); padding: 16px 24px 24px; border-bottom: 1px solid var(--c-ring); z-index: 99; }
    .sp-nav--open ul { flex-direction: column; }
    .sp-nav-toggle { display: flex; }
    .sp-grid--3 { grid-template-columns: 1fr; }
    .sp-footer__nav { grid-template-columns: 1fr; }
    .sp-form__row { grid-template-columns: 1fr; }
    .sp-footer__bottom { flex-direction: column; align-items: flex-start; }
}