/* ============================================
keynote.org.cn 鈥?涓绘牱寮忚〃锛堝畬鏁寸増锛?   閰嶈壊锛氭繁娴峰ⅷ钃?#1a1f36 / 棣欐閲?#c9a84c / 绫崇櫧 #f5f3ef / 鐐伆 #3d4255
============================================ */


/* --- CSS Variables --- */
:root {
--primary:    #1a1f36;
--accent:     #c9a84c;
--bg:         #f5f3ef;
--gray:       #3d4255;
--text-dark:  #2d2d2d;
--text-light: #888888;
--white:      #ffffff;
--shadow:     0 4px 24px rgba(26,31,54,0.08);
--shadow-lg:  0 12px 48px rgba(26,31,54,0.12);
--radius:     12px;
--radius-sm:  6px;
--transition: all 0.3s ease;
--font-serif: 'Noto Serif SC', 'STSong', 'SimSun', serif;
--font-sans:  'Noto Sans SC', 'PingFang SC', sans-serif;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
font-family: var(--font-sans);
background: var(--bg);
color: var(--text-dark);
line-height: 1.8;
-webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; font-family: inherit; }

/* --- Typography --- */
h1, h2, h3, h4, h5 {
font-family: var(--font-serif);
line-height: 1.3;
color: var(--primary);
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 600; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 500; }
p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

/* --- Container --- */
.container {
max-width: 1160px;
margin: 0 auto;
padding: 0 24px;
}

/* --- Section --- */
.section { padding: 80px 0; }
.section--dark { background: var(--primary); color: var(--white); }
.section--dark h2, .section--dark h3 { color: var(--white); }
.section__label {
font-size: 0.8rem;
letter-spacing: 0.15em;
text-transform: uppercase;
color: var(--accent);
font-weight: 500;
margin-bottom: 12px;
}
.section__title { text-align: center; margin-bottom: 16px; }
.section__subtitle {
text-align: center;
color: var(--text-light);
max-width: 600px;
margin: 0 auto 56px;
font-size: 1.05rem;
}

/* --- Buttons --- */
.btn {
display: inline-flex;
align-items: center;
gap: 8px;
padding: 14px 32px;
border-radius: var(--radius-sm);
font-size: 1rem;
font-weight: 500;
transition: var(--transition);
white-space: nowrap;
}
.btn--primary { background: var(--accent); color: var(--primary); }
.btn--primary:hover {
background: #d4b456;
transform: translateY(-2px);
box-shadow: 0 8px 24px rgba(201,168,76,0.3);
}
.btn--outline { border: 1.5px solid var(--white); color: var(--white); background: transparent; }
.btn--outline:hover { background: var(--white); color: var(--primary); }
.btn--ghost { border: 1.5px solid var(--accent); color: var(--accent); background: transparent; }
.btn--ghost:hover { background: var(--accent); color: var(--primary); }

/* --- Navigation --- */
.navbar {
position: fixed;
top: 0; left: 0; right: 0;
z-index: 1000;
padding: 0 24px;
transition: var(--transition);
}
.navbar--scrolled {
background: rgba(26,31,54,0.96);
backdrop-filter: blur(12px);
box-shadow: 0 2px 20px rgba(0,0,0,0.2);
}
.navbar__inner {
max-width: 1160px;
margin: 0 auto;
display: flex;
align-items: center;
justify-content: space-between;
height: 72px;
}
.navbar__logo {
font-family: var(--font-serif);
font-size: 1.3rem;
font-weight: 700;
color: var(--white);
letter-spacing: 0.02em;
}
.navbar__logo span { color: var(--accent); }
.navbar__nav { display: flex; align-items: center; gap: 36px; }
.navbar__link {
color: rgba(255,255,255,0.8);
font-size: 0.95rem;
font-weight: 400;
transition: var(--transition);
}
.navbar__link:hover { color: var(--accent); }
.navbar__cta {
padding: 9px 20px;
border: 1.5px solid var(--accent);
border-radius: var(--radius-sm);
color: var(--accent) !important;
font-size: 0.9rem;
}
.navbar__cta:hover { background: var(--accent); color: var(--primary) !important; }
.navbar__hamburger {
display: none;
flex-direction: column;
gap: 5px;
background: none;
padding: 4px;
}
.navbar__hamburger span {
display: block;
width: 24px; height: 2px;
background: var(--white);
transition: var(--transition);
}

/* --- Hero --- */
.hero {
position: relative;
min-height: 100vh;
display: flex;
align-items: center;
background: var(--primary);
overflow: hidden;
}
.hero::before {
content: '';
position: absolute;
inset: 0;
background:
radial-gradient(ellipse 80% 60% at 60% 40%, rgba(201,168,76,0.08) 0%, transparent 70%),
radial-gradient(ellipse 60% 80% at 20% 80%, rgba(201,168,76,0.05) 0%, transparent 60%);
}
.hero__pattern {
position: absolute;
inset: 0;
opacity: 0.04;
background-image:
linear-gradient(var(--accent) 1px, transparent 1px),
linear-gradient(90deg, var(--accent) 1px, transparent 1px);
background-size: 60px 60px;
}
.hero__content {
position: relative;
z-index: 2;
max-width: 720px;
padding-top: 72px;
}
.hero__badge {
display: inline-flex;
align-items: center;
gap: 8px;
padding: 6px 16px;
border: 1px solid rgba(201,168,76,0.4);
border-radius: 100px;
color: var(--accent);
font-size: 0.85rem;
margin-bottom: 32px;
letter-spacing: 0.05em;
}
.hero__badge::before {
content: '';
width: 6px; height: 6px;
border-radius: 50%;
background: var(--accent);
animation: pulse 2s infinite;
}
@keyframes pulse {
0%, 100% { opacity: 1; transform: scale(1); }
50% { opacity: 0.5; transform: scale(0.8); }
}
.hero__title { color: var(--white); margin-bottom: 24px; font-weight: 700; }
.hero__title em { font-style: normal; color: var(--accent); }
.hero__subtitle {
color: rgba(255,255,255,0.65);
font-size: 1.15rem;
margin-bottom: 48px;
line-height: 1.9;
max-width: 540px;
}
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero__scroll {
position: absolute;
bottom: 40px;
left: 50%;
transform: translateX(-50%);
display: flex;
flex-direction: column;
align-items: center;
gap: 8px;
color: rgba(255,255,255,0.3);
font-size: 0.75rem;
letter-spacing: 0.1em;
animation: bounce 2s infinite;
}
@keyframes bounce {
0%, 100% { transform: translateX(-50%) translateY(0); }
50% { transform: translateX(-50%) translateY(8px); }
}

/* --- Service Cards --- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
background: var(--white);
border-radius: var(--radius);
padding: 40px 32px;
transition: var(--transition);
border: 1px solid rgba(26,31,54,0.06);
position: relative;
overflow: hidden;
}
.service-card::before {
content: '';
position: absolute;
top: 0; left: 0; right: 0;
height: 3px;
background: var(--accent);
transform: scaleX(0);
transition: var(--transition);
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service-card:hover::before { transform: scaleX(1); }
.service-card__icon {
width: 56px; height: 56px;
background: rgba(201,168,76,0.1);
border-radius: var(--radius-sm);
display: flex;
align-items: center;
justify-content: center;
font-size: 1.6rem;
margin-bottom: 24px;
}
.service-card__title { margin-bottom: 12px; }
.service-card__desc { color: var(--text-light); font-size: 0.95rem; margin-bottom: 20px; }
.service-card__price { font-size: 0.85rem; color: var(--accent); font-weight: 500; }

/* --- Portfolio Carousel --- */
.portfolio-section { background: var(--white); }
.portfolio-track { display: flex; gap: 20px; transition: transform 0.5s ease; overflow-x: auto; padding-bottom: 12px; scrollbar-width: none; }
.portfolio-track::-webkit-scrollbar { display: none; }
.portfolio-card {
flex: 0 0 calc(33.333% - 14px);
background: var(--primary);
border-radius: var(--radius);
overflow: hidden;
cursor: pointer;
transition: var(--transition);
min-width: 280px;
}
.portfolio-card:hover { transform: scale(1.02); }
.portfolio-card__img { aspect-ratio: 16/10; overflow: hidden; position: relative; }
.portfolio-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.portfolio-card:hover .portfolio-card__img img { transform: scale(1.05); }
.portfolio-card__overlay {
position: absolute; inset: 0;
background: linear-gradient(180deg, transparent 40%, rgba(26,31,54,0.9) 100%);
display: flex; flex-direction: column; justify-content: flex-end;
padding: 20px;
}
.portfolio-card__tag { font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; }
.portfolio-card__name { color: var(--white); font-size: 1rem; font-weight: 600; font-family: var(--font-serif); }
.portfolio-card__body { padding: 20px; }
.portfolio-card__desc { color: rgba(255,255,255,0.6); font-size: 0.85rem; line-height: 1.6; }
.portfolio-controls { display: flex; justify-content: center; gap: 12px; margin-top: 32px; }
.portfolio-btn {
width: 44px; height: 44px;
border-radius: 50%;
border: 1.5px solid rgba(26,31,54,0.15);
background: var(--white);
display: flex; align-items: center; justify-content: center;
font-size: 1.1rem;
transition: var(--transition);
}
.portfolio-btn:hover { border-color: var(--accent); color: var(--accent); }

/* --- Testimonials --- */
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card {
background: rgba(255,255,255,0.06);
border-radius: var(--radius);
padding: 32px;
border: 1px solid rgba(255,255,255,0.08);
}
.testimonial-card__stars { color: var(--accent); font-size: 0.9rem; letter-spacing: 2px; margin-bottom: 16px; }
.testimonial-card__quote { color: rgba(255,255,255,0.8); font-size: 0.95rem; line-height: 1.9; margin-bottom: 20px; font-style: italic; }
.testimonial-card__author { display: flex; align-items: center; gap: 12px; }
.testimonial-card__avatar {
width: 40px; height: 40px; border-radius: 50%;
background: var(--accent);
display: flex; align-items: center; justify-content: center;
font-size: 0.9rem; font-weight: 700; color: var(--primary);
}
.testimonial-card__name { color: var(--white); font-size: 0.9rem; font-weight: 500; }
.testimonial-card__role { color: rgba(255,255,255,0.4); font-size: 0.78rem; }

/* --- Pricing Cards --- */
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; align-items: start; }
.pricing-card {
background: var(--white);
border-radius: var(--radius);
padding: 36px 28px;
border: 1.5px solid rgba(26,31,54,0.08);
transition: var(--transition);
position: relative;
}
.pricing-card--featured { border-color: var(--accent); box-shadow: var(--shadow-lg); transform: translateY(-8px); }
.pricing-card__badge {
position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
background: var(--accent); color: var(--primary);
font-size: 0.75rem; font-weight: 700;
padding: 4px 16px; border-radius: 100px; letter-spacing: 0.05em;
}
.pricing-card__name { font-family: var(--font-serif); font-size: 1.1rem; color: var(--primary); margin-bottom: 8px; }
.pricing-card__pages { color: var(--text-light); font-size: 0.85rem; margin-bottom: 20px; }
.pricing-card__price { font-size: 2.2rem; font-weight: 700; color: var(--primary); margin-bottom: 4px; line-height: 1; }
.pricing-card__price span { font-size: 1rem; font-weight: 400; color: var(--text-light); }
.pricing-card__features { margin: 24px 0; border-top: 1px solid rgba(26,31,54,0.06); padding-top: 20px; }
.pricing-card__feature { display: flex; align-items: flex-start; gap: 8px; font-size: 0.88rem; color: var(--text-dark); margin-bottom: 10px; }
.pricing-card__feature::before { content: '\2713'; color: var(--accent); font-weight: 700; flex-shrink: 0; margin-top: 1px; }
.pricing-card .btn { width: 100%; justify-content: center; }

/* --- Process Steps --- */
.process-grid {
display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px;
position: relative;
}
.process-grid::before {
content: '';
position: absolute; top: 36px; left: 10%; right: 10%; height: 1px;
background: linear-gradient(90deg, transparent, var(--accent), var(--accent), transparent);
}
.process-step { text-align: center; position: relative; }
.process-step__num {
width: 72px; height: 72px; border-radius: 50%;
background: var(--primary); color: var(--accent);
font-size: 1.4rem; font-weight: 700;
display: flex; align-items: center; justify-content: center;
margin: 0 auto 16px; font-family: var(--font-serif);
border: 2px solid var(--accent);
position: relative; z-index: 1;
}
.process-step__title { font-family: var(--font-serif); font-size: 0.95rem; color: var(--primary); margin-bottom: 6px; }
.process-step__desc { font-size: 0.8rem; color: var(--text-light); line-height: 1.6; }

/* --- FAQ --- */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid rgba(26,31,54,0.08); }
.faq-item__question {
width: 100%; text-align: left; background: none;
padding: 22px 0; font-size: 1rem; font-weight: 500; color: var(--primary);
display: flex; justify-content: space-between; align-items: center; gap: 16px;
cursor: pointer;
}
.faq-item__toggle { font-size: 1.4rem; color: var(--accent); transition: transform 0.3s ease; flex-shrink: 0; font-weight: 300; }
.faq-item--open .faq-item__toggle { transform: rotate(45deg); }
.faq-item__answer {
max-height: 0; overflow: hidden;
transition: max-height 0.4s ease, padding 0.4s ease;
color: var(--text-light); font-size: 0.95rem; line-height: 1.9;
}
.faq-item--open .faq-item__answer { max-height: 300px; padding-bottom: 22px; }

/* --- Blog Cards --- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.blog-card {
background: var(--white); border-radius: var(--radius); overflow: hidden;
transition: var(--transition); border: 1px solid rgba(26,31,54,0.06); display: block;
}
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.blog-card__img { aspect-ratio: 16/9; overflow: hidden; position: relative; }
.blog-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.blog-card:hover .blog-card__img img { transform: scale(1.05); }
.blog-card__img .blog-card__tag {
position: absolute; top: 12px; left: 12px;
background: var(--accent); color: var(--primary);
font-size: 0.7rem; font-weight: 600;
padding: 3px 10px; border-radius: 100px; letter-spacing: 0.05em;
}
.blog-card__body { padding: 24px; }
.blog-card__title { font-family: var(--font-serif); font-size: 1.1rem; color: var(--primary); margin-bottom: 10px; line-height: 1.5; transition: color 0.3s ease; }
.blog-card:hover .blog-card__title { color: var(--accent); }
.blog-card__excerpt {
color: var(--text-light); font-size: 0.88rem; line-height: 1.8;
margin-bottom: 16px;
display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.blog-card__meta { display: flex; align-items: center; justify-content: space-between; font-size: 0.78rem; color: var(--text-light); }
.blog-card__read { color: var(--accent); font-weight: 500; font-size: 0.85rem; display: flex; align-items: center; gap: 4px; }

/* --- Portfolio Page --- */
.portfolio-filters { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.filter-btn {
padding: 8px 20px; border-radius: 100px; font-size: 0.88rem;
background: var(--white); color: var(--text-dark);
border: 1.5px solid rgba(26,31,54,0.12); transition: var(--transition); cursor: pointer;
}
.filter-btn:hover, .filter-btn--active { background: var(--primary); color: var(--white); border-color: var(--primary); }
.portfolio-showcase { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 28px; }

/* --- About Page --- */
.about-hero { background: var(--primary); padding: 120px 0 80px; text-align: center; }
.about-story { max-width: 720px; margin: 0 auto; font-size: 1.1rem; line-height: 2; color: rgba(255,255,255,0.75); }
.contact-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 640px; margin: 0 auto; }
.contact-card { background: var(--white); border-radius: var(--radius); padding: 32px; text-align: center; border: 1px solid rgba(26,31,54,0.08); }
.contact-card__icon { font-size: 2rem; margin-bottom: 12px; }
.contact-card__title { font-size: 0.85rem; color: var(--text-light); margin-bottom: 6px; letter-spacing: 0.05em; }
.contact-card__value { font-size: 1.05rem; font-weight: 500; color: var(--primary); }

/* --- Footer --- */
.footer { background: var(--primary); padding: 64px 0 32px; color: rgba(255,255,255,0.6); }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer__brand-name { font-family: var(--font-serif); font-size: 1.3rem; color: var(--white); margin-bottom: 12px; }
.footer__brand-desc { font-size: 0.88rem; line-height: 1.8; margin-bottom: 20px; }
.footer__socials { display: flex; gap: 12px; }
.footer__social {
width: 36px; height: 36px; border-radius: 50%;
border: 1px solid rgba(255,255,255,0.15);
display: flex; align-items: center; justify-content: center;
font-size: 0.85rem; transition: var(--transition);
}
.footer__social:hover { border-color: var(--accent); color: var(--accent); }
.footer__col-title { color: var(--white); font-size: 0.9rem; font-weight: 600; margin-bottom: 20px; letter-spacing: 0.05em; }
.footer__links { display: flex; flex-direction: column; gap: 10px; }
.footer__link { font-size: 0.88rem; color: rgba(255,255,255,0.55); transition: var(--transition); display: block; }
.footer__link:hover { color: var(--accent); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; text-align: center; font-size: 0.82rem; color: rgba(255,255,255,0.35); }

/* --- Prose (Blog Article) --- */
.prose h2 { font-size: 1.6rem; margin: 2em 0 0.8em; padding-bottom: 0.5em; border-bottom: 1px solid rgba(26,31,54,0.08); }
.prose h3 { font-size: 1.3rem; margin: 1.8em 0 0.6em; }
.prose p { font-size: 1.05rem; line-height: 2; margin-bottom: 1.4em; color: var(--text-dark); }
.prose ul { padding-left: 1.5em; margin-bottom: 1.4em; }
.prose ul li { list-style: disc; margin-bottom: 0.6em; font-size: 1.05rem; line-height: 1.9; color: var(--text-dark); }
.prose ol { padding-left: 1.5em; margin-bottom: 1.4em; }
.prose ol li { list-style: decimal; margin-bottom: 0.6em; font-size: 1.05rem; line-height: 1.9; color: var(--text-dark); }
.prose blockquote { border-left: 3px solid var(--accent); padding: 16px 20px; background: rgba(201,168,76,0.06); margin: 1.6em 0; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.prose blockquote p { color: var(--gray); margin: 0; font-style: italic; }

/* --- Utility --- */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }

/* --- Mobile Responsive --- */
@media (max-width: 1024px) {
.services-grid { grid-template-columns: repeat(3, 1fr); }
.portfolio-card { flex: 0 0 calc(50% - 10px); }
.pricing-grid { grid-template-columns: repeat(2, 1fr); }
.pricing-card--featured { transform: none; }
.process-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
.process-grid::before { display: none; }
.testimonials-grid { grid-template-columns: 1fr; gap: 16px; }
.blog-grid { grid-template-columns: repeat(2, 1fr); }
.footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
.navbar__nav { display: none; position: fixed; top: 72px; left: 0; right: 0; background: rgba(26,31,54,0.98); flex-direction: column; gap: 0; padding: 16px 0; }
.navbar__nav.open { display: flex; }
.navbar__link { display: block; padding: 14px 24px; color: rgba(255,255,255,0.8); }
.navbar__hamburger { display: flex; }
.hero__title { font-size: clamp(1.8rem, 6vw, 2.8rem); }
.hero__actions { flex-direction: column; align-items: flex-start; }
.services-grid { grid-template-columns: 1fr; }
.portfolio-card { flex: 0 0 85%; }
.pricing-grid { grid-template-columns: 1fr; }
.process-grid { grid-template-columns: 1fr 1fr; }
.blog-grid { grid-template-columns: 1fr; }
.contact-cards { grid-template-columns: 1fr; }
.portfolio-showcase { grid-template-columns: 1fr; }
.footer__grid { grid-template-columns: 1fr; gap: 24px; }
.section { padding: 60px 0; }
}

@media (max-width: 480px) {
.container { padding: 0 16px; }
.hero { min-height: 90vh; }
.hero__actions { width: 100%; }
.btn { width: 100%; justify-content: center; }
}

/* --- Custom Scrollbar --- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--gray); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* --- Animations --- */
@keyframes fadeInUp {
from { opacity: 0; transform: translateY(20px); }
to { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp 0.6s ease forwards; }

/* --- Image placeholder --- */
.img-placeholder {
background: var(--primary);
display: flex; align-items: center; justify-content: center;
color: var(--accent); font-family: var(--font-serif);
font-size: 1.2rem; letter-spacing: 0.05em;
flex-direction: column; gap: 8px;
}
.img-placeholder span { font-size: 0.7rem; opacity: 0.6; font-family: var(--font-sans); }